Wednesday, May 29, 2013
Inequality
Tuesday, May 07, 2013
Cross Discipline
Friday, March 15, 2013
John Maynard Keynes, The end of laissez-faire (1926)
John Maynard Keynes, The end of laissez-faire (1926): "The maxim laissez-nous faire is traditionally attributed to the merchant Legendre addressing Colbert some time towards the end of the seventeenth century.
('Que faut-il faire pour vous aider?' asked Colbert. 'Nous laisser faire' answered Legendre)."
Saturday, March 02, 2013
Productivity and potential market
"The US advantage in per capita output, apparent from the late 19th century, is frequently attributed to its relatively large domestic market. We construct market potential measures for the US and 26 other countries between 1880 and 1913 based on a general equilibrium model of production and trade. When compared to other leading economies in 1900, the year around which the US overtakes Britain in productivity leadership, the US does not have the overwhelming lead in market potential that it has in GDP per capita. Still, market potential is positively related to the cross-country distribution of income per capita, but the impact of market potential is likely to be very heterogeneous. We illustrate this in a quantitative calculation of the welfare gains from removing international borders in 1900 within a parsimonious general equilibrium trade model. While there are gains from trade for all nations, the largest European countries do not close their per capita income gaps with the US after this hypothetical rise in market potential. On the other hand, many small countries could have done so."
'via Blog this'
Monday, February 04, 2013
Sunday, February 03, 2013
Peak Oil
Brad DeLong : Liveblogging World War II: February 3, 1943:A caveat to the predictions of economic collapse as a consequence of 'peak oil'.
"It needs to be said, of course, that the dire predictions of Hitler and his economic advisers in 1941 and 1942 about the certain collapse of the German war machine if no new sources of oil were obtained proved to be exaggerated. The German war effort did not grind to a halt when the campaign to capture the Caucasus oilfields failed. Although Germany's oil situation remained acute, and became desperate after the Allied air offensive against its synthetic fuel plants and the Rumanian oilfields began, the Reich continued fighting until May 1945."There are alternatives. They may not be sustainable themselves, but..
'via Blog this'
Tuesday, January 29, 2013
The Allais Paradox
The Allais Paradox | Wired Science | Wired.com:There is some explanation of the Allais Paradox here in Wired.com. The is a tendency to value certainty but once this is gone, there is a tendency to take risk. For speculation, this means that the positive skew to returns are very attractive but the negative skew does not have very much influence.
"But why was certainty so attractive? Kahneman and Tversky wanted to understand the psychology behind the paradox. Their breakthrough came by accident. Kahneman had been reading a textbook on economic utility functions, and was puzzled by the way economists explained a particular aspect of our behavior. When evaluating a gamble—like betting on a hand of poker, or investing in a specific stock—economists assumed that we made the decision by taking into account our wealth as a whole. (Being rational requires factoring in all the relevant information.) But Kahneman realized that this isn’t how we think. Gamblers in Las Vegas don’t sit around the card table contemplating their complete financial portfolio. Instead, they make quick decisions that depend entirely upon the immediate terms of the gamble. If there is a $100 wager, and you’re trying to decide whether or not to ante in with a pair of aces, you probably aren’t thinking about the recent performance of your mutual fund, or the value of your home."
This may mean that fat tails are attractive as the possibility of large gains draws attention while the possibility of large losses is given less weight than it should. There is loss aversion. If there are large potential losses, losses should be cut swiftly, but there is a tendency to hand on a hope - with potentially catastrophic results.
Sunday, January 20, 2013
Sunday, January 13, 2013
Compartments and belief
"Cognitive dissonance may also be at work in the compartmentalization of beliefs. In the 2010 article “When in Doubt, Shout!” in Psychological Science, Northwestern University researchers David Gal and Derek Rucker found that when subjects' closely held beliefs were shaken, they “engaged in more advocacy of their beliefs ... than did people whose confidence was not undermined.” Further, they concluded that enthusiastic evangelists of a belief may in fact be “boiling over with doubt,” and thus their persistent proselytizing may be a signal that the belief warrants skepticism."
'via Blog this'
Saturday, December 08, 2012
Rajiv Sethi: Risk and Reward in High Frequency Trading
'via Blog this'
Tuesday, November 06, 2012
Knight, Risk, Uncertainty, and Profit, Part III, Chapter X | Library of Economics and Liberty
"The receipt of profit in a particular case may be argued to be the result of superior judgment. But it is judgment of judgment, especially one's own judgment, and in an individual case there is no way of telling good judgment from good luck, and a succession of cases sufficient to evaluate the judgment or determine its probable value transforms the profit into a wage."
However, the build up of confidence, profits and positions that are based on luck rather than ability to forececast the future could increase risk, particularly if risk is identified as a risk of reversal or crash.
Sunday, October 28, 2012
The New Physiocrats - NYTimes.com
The New Physiocrats - NYTimes.com: "What’s really going on here, as far as I can tell, is a modern version of the 18th century physiocratic notion that only agriculture is real, that everything else is fluff on top. And we really shouldn’t be seeing a rebirth of that sort of nonsense in the 21st century. If you believe that we should have fewer schoolteachers and firefighters — or that education should be privatized — make that case. Don’t try to hide your prejudices under a mystical doctrine in which important, productive jobs somehow don’t count if they come from a place with a .gov email address."We could also point to the idea that manufacturing is all powerful and useful while services are to be avoided.
'via Blog this'
Friday, September 07, 2012
Another side of the credit crunch
"Yes, you read that right. Although Americans are (in)famous for their addiction to credit card debt, that love affair is cooling, or being forcibly cooled. By the middle of this year, the number of credit card accounts in circulation had tumbled to 383m, 23 per cent below its 2008 peak, and fresh applications for credit were declining too. Put another way, while cards are still being flogged to consumers (and even sometimes marketed, via direct mail, to pets), not all Americans are saying “yes”."Another way to look at this is from the supply side. As part of the 'credit crunch' and cut back in advances to risky credits.
Monday, September 03, 2012
Skin in the game - indeed
Wednesday, August 15, 2012
BBC News - Olympic counties: Does it matter where medal-winners come from?
Wiggins Belgium and the South African cricketer
Andy Murray's gold postbox is in Dunblane, where the tennis gold medallist grew up - although he was, in fact, born in Glasgow, moved to Barcelona to train at 15 and now lives near Wimbledon in south-west London."
Saturday, August 04, 2012
Rajiv Sethi: Belief Heterogeneity
"Not surprisingly, then, the presentation I found most appealing was that of Blake LeBaron. Blake is a pioneer in the development of agent-based computational models of financial markets, and the paper he presented belonged to this class. A large number of different forecasting strategies, some based on fundamental information and others on technical data analysis, compete with each other and with a traditional buy-and-hold strategy in his model. The resulting trading dynamics give rise to asset price returns that exhibit both moderate levels of short-run momentum as well as mean reversion over longer horizons. Moreover, the long run population of forecasting rules is ecologically diverse, with both passive and active strategies well represented. "
'via Blog this'
Crowds and networds
: "Consider the following simple model of a potential riot, based on an idea published in 1978 by the sociologist Mark Granovetter. There are 1,000 people in a crowd of protesters, and all of them have some underlying tendency to embark on a looting spree. We might reckon that an outbreak of rioting might be triggered by insensitive policing, or by the poverty of the crowd, or the opportunities for theft or for violent protest. But for simplicity let’s assume that the only thing everyone in the crowd cares about is what everyone else in the crowd is doing. Some people will start looting without much company. Others will hang back until the riot is well under way."
This can also be used, I think, to look at the way that speculation can build. Given the information cascade that builds when valuation is difficult and that activity of others can imply some understanding that may not exist.
Tuesday, July 31, 2012
Thursday, July 26, 2012
John Kay - The parable of the ox
"One difficulty was that sometimes there were few, or even no, guesses of the oxen’s weight. But that problem was soon overcome. Mathematicians from the University of Chicago developed models from which it was possible to estimate what, if there had actually been many guesses as to the weight of the animal, the average of these guesses would have been. No knowledge of animal husbandry was required, only a powerful computer."
Interesting, non-the-less. '
Monday, July 23, 2012
How Do You Choke Away the British Open? The Science of the Tight Collar | Wired Science | Wired.com
Sport psychology: "“You can’t dictate your genes,” says Stone. “But among the many identities you have, you can choose which to operate from.” Tiger Woods, for instance, has clearly forged an identity that transcends the potential vulnerabilities of his multiracial makeup. You can wallow in your most negative identity — the slow one, the overthinker, the one who doesn’t care — or you can foreground another identity, the one who is ready, the one who knows what’s coming, the one who calmly attacks the problem."
With a solution
The shocking story of how a council pursued Peter Williams
The shocking story of how a council pursued Peter Williams | Liberal Conspiracy: "On the 8th of February a man took his own life. Peter Williams was a gifted engineer, whose invention, still manufactured today, landed him in the Guinness World Records, but he was driven to bankruptcy and suicide by an unthinking and inhumane bureaucratic system"
Sunday, July 15, 2012
Models
"The point is that all this work USES Dixit-Stiglitz, but it’s not ABOUT Dixit-Stiglitz; D-S is a gadget, a tool that helps you work with the fundamental issues, but you don’t ever want to forget that it is no more than that."
Monday, July 09, 2012
George Monbiot – False Summit
It is always dangerous to make forecasts. There is always some unsuspecting element that can crop up.
and then!
http://www.davidstrahan.com/
Wednesday, June 20, 2012
Easter Island - people or rats?
"Jared Diamond drew heavily on Flenley’s work for his assertion in Collapse, his influential 2005 book, that ancient Easter Islanders committed unintentional ecocide."
When the wood was gone and civil war began, the islanders began toppling the moai. By the 19th century none were standing. Easter Island’s landscape acquired the aura of tragedy that, in the eyes of Diamond and many others, it retains today.
'via Blog this'
Andrew Gelman on political statistics
'via Blog this'
Greece’s ailing economy grinds to a halt - FT.com
"But after thinking it over, Yannis Stamos, the company’s co-founder, turned the customer away. Filling the order would have meant reaching into Medical Service’s own pockets to cover the €35,000 cost of such a machine, since Greek banks have stopped lending and the company’s German suppliers now demand pre-payment in cash."
Friday, June 01, 2012
Bond market liquidity
"Data from the Federal Reserve on Thursday showed corporate bond holdings among the largest dealers fell last week to $45bn. These inventories reached highs of more than $200bn in 2007 before falling to $90bn a year ago.Declining liquidity makes the market more of one where deals are worked over time and ultimately increases the cost of borrowing as final investors know that there is limited possibility of a swift sale.
Asset managers are concerned that reduced liquidity will make it harder to move in and out of large positions, particularly at times of market stress.
“The buyside is looking for an answer on how to fix this,” said one of the dealer participants."'
Thursday, May 17, 2012
Social network vs critics
"Amazon reviewers were more likely to give a favourable review to a debut author, which the Harvard academics said suggested that "one drawback of expert reviews is that they may be slower to learn about new and unknown books".
Professional critics were more positive about prizewinning authors, and "more favourable to authors who have garnered other attention in the press (as measured by number of media mentions outside of the review)"."
'via Blog this'
Tuesday, May 08, 2012
Collateral and rating
M Stanley reassesses downgrade impact - FT.com: "The additional collateral needed could reduce Morgan Stanley’s fixed income derivatives revenues by almost a third, analysts at AllianceBernstein estimated in a recent note. In addition to having to stump up extra collateral to its trading partners, Morgan Stanley could also face a higher cost of funding, the analysts said."This also gives some indication of the importance of the economies of scale in investment banking.
Monday, May 07, 2012
International holding of bonds and capital
'via Blog this'
Thursday, May 03, 2012
Funds move directly into loan market
"It is the second time this week a UK insurer has provided debt finance for a property deal, with Legal & General issuing its maiden property loan on Tuesday.
The relationship between the two sectors is deepening rapidly as insurers snap up opportunities created by the shortage of bank lending."
'via Blog this'
Sunday, April 29, 2012
German banks rein in exposure to Spain - FT.com
German banks rein in exposure to Spain - FT.com: "Will Spain – where house prices have fallen more than 22 per cent from their peak, with analysts expecting worse to come – bring more pain? Figures published this month by the Bank for International Settlements show that German banks had $146bn of exposure to Spain at the end of 2011 – more than the banks of any other country. Some $53bn of the exposure is to Spanish banks, while a further $68bn is to the rest of the private sector"
End-December 2011
Denmark France Germany Greece Ireland Italy Japan Mexico
Spain 1,951 115,162 146,096 292 4,696 26,939 21,691 540 ...
http://www.bis.org/statistics/r_qa1206_anx9b.pdf
Saturday, April 28, 2012
FX Momentum trades
'via Blog this'
Wednesday, April 18, 2012
Investment Bank Leverage
Goldman Sachs: then and now - FT.com: "Spookily, it is as if nothing has changed for six long years. But a financial crisis has come and gone since then and regulators are now throwing everything at banks. Of course, there is one huge difference between the two periods, but it is not to be found in the profit and loss account. Flip to the balance sheet and be astounded to remember that in 2006 Goldman was running on just $27bn of common shareholders’ equity. With exactly the same earnings today, that number is now two and a half times higher."
Monday, April 09, 2012
Hedge funds and leverage
Hedge funds keep a lid on leverage - FT.com: "According to the UK’s Financial Services Authority, which in February published its annual survey of the global hedge fund industry, the average hedge fund currently uses leverage of about 2.5 times its capital – as it has done for the past three years.
Indeed, unlike prop desks, most hedge funds have to grapple with all too finite liquidity and financing – issues no manager has been able to ignore since 2008."
How the leverage has been reduced as pro trading transfers from investment banks to hedge funds.
Monday, March 05, 2012
The BBK seeks insurance against EMU break-up
"It also tells us something else: by seeking insurance against a collapse of the euro, the Bundesbank tells us it no longer regards the demise of the euro as a zero-probability event. If the Bundesbank seeks insurance, so should everybody else."
'via Blog this'
Wednesday, February 15, 2012
Are Credit Ratings Massively Overrated? | Economics Intelligence
"Hilscher and Wilson reply that they do not claim that ratings have no informational content whatsoever. Having a S&P rating was certainly better than no information at all, stresses Hilscher"
'via Blog this'
Sunday, January 08, 2012
Do hedge funds offer value for their fees? No - FT.com
"Just as individual hedge funds tend to do better when they are small, so too, his analysis shows, the industry as a whole performed better when it was a largely unknown $200bn business, rather than the high profile $1.9tn industry it had grown to become, before the financial crisis in 2008 so dramatically exposed some of its shortcomings. The comforting compounded rates of return reported in hedge fund indices give a misleading impression of the actual cash returns achieved by hedge fund investors. Most of the client money that has flowed in since the industry began to be institutionalised has not achieved anything like the returns the long-term headline index figures suggest.
"
'via Blog this'
Monday, January 02, 2012
Delete rows from R data frame « Heuristic Andrew
'via Blog this'
Saturday, December 24, 2011
Friedman and Krugman
Is it really possible that people at the University of Chicago have unlearned not only Keynes but Friedman? Alas, yes."
'via Blog this'
Sunday, December 04, 2011
Saturday, November 19, 2011
Why Only Germany Can Fix the Euro | Foreign Affairs
" According to Eurostat, Germany's trade surplus with the rest of the EU grew from 46.4 billion euro in 2000 to 126.5 billion in 2007. The evolution of Germany's bilateral trade surpluses with the Mediterranean countries is especially revealing. Between 2000 and 2007, Greece's annual trade deficit with Germany grew from 3 billion euro to 5.5 billion, Italy's doubled, from 9.6 billion to 19.6 billion, Spain's almost tripled, from 11 billion to 27.2 billion, and Portugal's quadrupled, from 1 billion to 4.2 billion. Between 2001 and 2009, moreover, Germany saw its final total consumption fall from 78.5 percent of GDP to 74.5 percent. Its gross savings rate increased from less than 19 percent of GDP to almost 26 percent over the same period."
'via Blog this'
Friday, November 18, 2011
Unintended consequences
"Mr Blessing criticised the Greek agreement since investors that insured Greek bonds using CDS had not received a pay-out because the voluntary agreement was not deemed to be a so-called “credit event” and thus did not trigger CDS payments."This can lead to other bond holders selling the bonds because they find that they are not protected from default.
Saturday, November 12, 2011
Michael Lewis on Prospect Theory
"The moment the psychologists uncover some new kink in the human mind, they bestow a strange and forbidding name on it (“the availability heuristic”). In their most cited paper, cryptically titled “Prospect Theory,” they convinced a lot of people that human beings are best understood as being risk-averse when making a decision that offers hope of a gain but risk-seeking when making a decision that will lead to a certain loss. In a stroke they provided a framework to understand all sorts of human behavior that economists, athletic coaches, and other “experts” have trouble explaining: why people who play the lottery also buy insurance; why people are less likely to sell their houses and their stock portfolios in falling markets; why, most sensationally, professional golfers become better putters when they’re trying to save par (avoid losing a stroke) than when they’re trying to make a birdie (and gain a stroke)"
'via Blog this'
Unintended consequences
Alas, such a rule is hopelessly slack for an out-of-town supermarket – an environmental disaster because of all the driving it encourages, yet with plenty of real estate for solar panels. Meanwhile it is too challenging for a city-centre skyscraper, which is naturally a low-energy building because of its compactness and proximity to public transport."
'via Blog this'
Monday, September 26, 2011
The evolution of overconfidence
This would be consistent with the behaviour that is mirrored in financial markets. The carry trade is such a confident trait. There is the belief that the exit can be achieved before the shock. This is generally successful, certainly more successful than the alternative strategy that would hold back and worry about the risk of a funding currency appreciation. Those who embark on the strategy make years of gains. Those who stay on the sidelines, lose out. When the hit happens, it is a shock that is explained away by specific circumstances. The over-confident are not blamed and the cautious and not proved 'right' in most cases.
Tuesday, September 13, 2011
The price of protection - FT.com
'via Blog this'
Wednesday, September 07, 2011
The Social Responsibility of Business is to Increase its Profits, by Milton Friedman
When I hear businessmen speak eloquently about the "social responsibilities of business in a free-enterprise system," I am reminded of the wonderful line about the Frenchman who discovered at the age of 70 that he had been speaking prose all his life. The businessmen believe that they are defending free enterprise when they declaim that business is not concerned "merely" with profit but also with promoting desirable "social" ends; that business has a "social conscience" and takes seriously its responsibilities for providing employment, eliminating discrimination, avoiding pollution and whatever else may be the catchwords of the contemporary crop of reformers. In fact they are–or would be if they or anyone else took them seriously–preaching pure and unadulterated socialism. Businessmen who talk this way are unwitting puppets of the intellectual forces that have been undermining the basis of a free society these past decades."
'via Blog this'
Saturday, August 20, 2011
Technology Can't Save Us From Math Mishaps - WSJ.com
Tuesday, July 26, 2011
Profits from ETF
Wednesday, July 06, 2011
2011 World’s Most Ethical Companies | Ethisphere™ Institute
2011 World’s Most Ethical Companies | Ethisphere™ Institute: "The World’s Most Ethical Companies designation recognizes companies that truly go beyond making statements about doing business “ethically” and translate those words into action. WME honorees demonstrate real and sustained ethical leadership within their industries, putting into real business practice the Institute’s credo of “Good. Smart. Business. Profit.”"
Monday, July 04, 2011
Bond market liquidity
Lack of liquidity bad for big bond funds - FT.com: "In 2007 bond fund managers were able to trade bonds at bid/offer spreads of 0.25 per cent. That widened to 2-3 per cent at the height of the crisis from September 2008 to March 2009. Trading spreads subsequently fell back to 0.4-0.5 per cent but have since crept up again to about 1 per cent on fears of the European sovereign debt crisis. Mr Davidson says: “It’s clear the banks don’t want any credit instruments on their books, especially given everything that’s going on in peripheral Europe.”
As a result, he adds, anyone managing a bond fund with assets of £1bn ($1.6bn) or more – with individual holdings of £10m plus – has their hands pretty much tied, “unless they resort to the euro market for greater cash liquidity or the CDS [credit default swap] market for greater active liquidity – but they’d be giving away yield in both cases. It is taking people a long time to trade out of an accumulated position of over £100m in a single, not very liquid bond.”"
Pension fund exposure
Two interesting aspects of this FT report: The decline in equity share and the increase in alternative assets.
Reductions in equity exposure to continue - FT.com: "UK pension funds have been gradually reducing their allocation to equities in the past decade from 74 per cent in 2000 to 55 per cent in 2010, according to Towers Watson. The equity exposure of UK funds remains the highest of all the large markets; compared with 49 per cent in the US, 37 per cent in Japan, 33 per cent in the Netherlands and 28 per cent in Switzerland. But a decline in equity allocations is common, with the net overall allocation across the largest pension fundmarkets down by 13 per cent in the past five years, as pension funds diversify into alternative asset classes, which now account for 19 per cent of all portfolios."
Friday, June 24, 2011
Smell like team spirit
"Ditto Stateside. The headline grabbing $400m Platinum Equity supposedly paid for the Detroit Pistons this month is equivalent in size to Stein Mart, 468th in the S&P 600 small cap index. (And the retailer makes 10 times the revenues.) Sports profitability is worse. Why? Wages. Incredibly, the market cap of Juventus FC is only 30 times the annual salary of its best paid player. Goldman Sachs’s market cap is 5,000 times its boss’s last pay packet."
Sunday, June 19, 2011
Beware the tottering Greek domino
Wednesday, June 08, 2011
Sunday, April 24, 2011
‘National mania’ blamed for Irish crisis
"Mr Nyberg said the attendant risks went undetected or were seriously misjudged by regulatory authorities “whose actions and warnings were modest and insufficient”.
A “happy go lucky” attitude prevailed during the period, including among the bondholders that lent to Irish banks.
“When it all ended, suddenly and inexplicably, participants had difficulty accepting their appropriate share of the blame for something in which so many others were also involved and that seemed reasonable at the time,” the report states"
Tuesday, April 19, 2011
Economist's View: Empirical and Historical Validation of Macroeconomic Models
"That was a mistake, but what is the lesson? One is that we should not necessarily ignore something just because it cannot be found in the data. Much of the empirical work prior to the crisis involved data from the early 1980s to the present (due to an assumption of structural change around that time), sometimes the data goes back to 1959 (when standard series on money end), and occasionally empirical work will use data starting in 1947. So important, infrequent events like the great Depression are rarely even in the data we use to test our models. Things that help to explain this episode may not seem important in limited data sets, but we ignore these possibilities at our own peril."
Monday, April 11, 2011
Spanish rates and the ECB
Saturday, April 09, 2011
What will people do for money?
Tuesday, April 05, 2011
Fixed income hedge funds
"The resources and infrastructure required means that yield curve hedge funds tend to exist inside banks and the largest asset management firms. In Europe, well-known credit exponents include Trafalgar Asset Managers and BlueBay Asset Management, while yield curve funds include Brevan Howard, Moore Capital, Comac Capital and Prologue Capital."
Wednesday, March 23, 2011
ESM and seniority
Tuesday, January 11, 2011
Global credit gaUge
"The agreement drew strong support from around the world despite predictions that regulators would be unable to come up with a common definition for bubbles. The deal uses the ratio of credit-to-GDP as its basic measure. But regulators can use other metrics, provided they make their reasoning public"
Thursday, December 23, 2010
Merrill and the CDOs
Monday, December 13, 2010
John Maynard Keynes - A great investor
"John Maynard Keynes started off as a currency trader, moving to commodities a bit later on. He attempted to invest based on macroeconomic predictions—keep in mind that he was an economist—and it didn't exactly work out in the short run. I didn't quote the rest of the article but Keynes appears to have broke even later on but this was definitely a painful start."
Transaction banking
"Few universal banks split out their transaction banking performance. But Deutsche Bank, for example, recorded transaction banking pre-tax profits of €1.1bn in 2008, up 17 per cent and equivalent to an ROE of 108 per cent. Though the number slipped back – to €776m – in 2009, that relatively stable performance contrasts with the investment banking result, which was €7.4bn in the red in 2008, thanks to the toxic asset fall-out from the financial crisis, and then €4.3bn in the black again last year."
Tuesday, November 23, 2010
UK Irish exposure
"Settlements estimates that UK lenders account for almost 30 per cent of European banks’ total $509bn exposure to Ireland. RBS and Lloyds, both partially state-owned, have taken the most Irish pain, falling by about 8 and 9 per cent respectively over the past week before regaining some ground on Tuesday"
Saturday, November 13, 2010
Negative basis in Ireland
"Ireland joined Greece this week in the negative basis club. That is, the five-year asset swap spread for Ireland outpaced movement in equivalent credit default swaps. So (in basic terms) spreads in the CDS market were trading lower than in the cash market for Ireland."
Friday, November 12, 2010
German banks and Basel 2
Sunday, October 31, 2010
Allocation of education
"We can have the money for a national system of higher education distributed either in accordance with the tastes of 18-year-olds or in accordance with the tastes of a group of older people in London: there’s no other way to do it."
Wednesday, October 27, 2010
Private equity
"That seems about right: car companies stand or fall, ultimately, on the strength of their product, and teaching a giant company how to build a quality car again is something that can’t be done on the private-equity timetable. The problem is that no private-equity manager wants to be thought of as a mere financial engineer."
Tuesday, October 26, 2010
You can't buck the market
"We’ll quickly note that the Fed’s expected QE2 measures will, if successful in bringing about inflationary pressures, further add to the pressure on China to appreciate."
Saturday, October 23, 2010
Marginal Revolution: Classical economics reading list
The Economist: Junk Bonds
Monday, October 11, 2010
Before the bank
And he being gone, and what company there was, my father and I, with a dark lantern; it being now night, into the garden with my wife, and there went about our great work to dig up my gold. But, Lord! what a tosse I was for some time in, that they could not justly tell where it was; that I begun heartily to sweat, and be angry, that they should not agree better upon the place, and at last to fear that it was gone but by and by poking with a spit, we found it, and then begun with a spudd to lift up the ground. But, good God! to see how sillily they did it, not half a foot under ground, and in the sight of the world from a hundred places, if any body by accident were near hand, and within sight of a neighbour’s window, and their hearing also, being close by: only my father says that he saw them all gone to church before he begun the work, when he laid the money, but that do not excuse it to me. But I was out of my wits almost, and the more from that, upon my lifting up the earth with the spudd, I did discern that I had scattered the pieces of gold round about the ground among the grass and loose earth; and taking up the iron head-pieces wherein they were put, I perceive the earth was got among the gold, and wet, so that the bags were all rotten, and all the notes, that I could not tell what in the world to say to it, not knowing how to judge what was wanting, or what had been lost by Gibson in his coming down: which, all put together, did make me mad; and at last was forced to take up the head-pieces, dirt and all, and as many of the scattered pieces as I could with the dirt discern by the candlelight, and carry them up into my brother’s chamber, and there locke them up till I had eat a little supper: and then, all people going to bed, W. Hewer and I did all alone, with several pails of water and basins, at last wash the dirt off of the pieces, and parted the pieces and the dirt, and then begun to tell [them]; and by a note which I had of the value of the whole in my pocket, do find that there was short above a hundred pieces, which did make me mad; and considering that the neighbour’s house was so near that we could not suppose we could speak one to another in the garden at the place where the gold lay — especially my father being deaf — but they must know what we had been doing on, I feared that they might in the night come and gather some pieces and prevent us the next morning; so W. Hewer and I out again about midnight, for it was now grown so late, and there by candlelight did make shift to gather forty-five pieces more. And so in, and to cleanse them: and by this time it was past two in the morning; and so to bed, with my mind pretty quiet to think that I have recovered so many. And then to bed, and I lay in the trundle-bed, the girl being gone to bed to my wife, and there lay in some disquiet all night, telling of the clock till it was daylight.
Tuesday, October 05, 2010
Internalising
"As for the proportion of trading conducted this way? According to the last stats seen by FT Alphaville, something like 31 per cent of all US equity orders were being internalised as of January, 2010."
Monday, October 04, 2010
Networks and liquidity
Still, if it’s the crash itself that is of interest, you’ll do better reading the SEC report. It is the larger dimension of the signal that interests David. He invokes the work of French mathematician René Thom, inventor in the 1970s of a formal mathematics of sudden shifts, of qualitative breaks or discontinuities, that he called catastrophes. “To appreciate that quality it is helpful to start from the mathematical rather than the ordinary language meanings conveyed the term,” David writes.A commonplace physical illustration of a “catastrophic event” – in this formal sense of the term — may be experienced by letting your finger trace the surface of a draped fabric until it reaches a point where the surface (the “manifold” as mathematicians would speak of the shawl or cloak’s three-dimensional surface) has folded under itself; there gravity will cause your finger’s point of contact to drop precipitously from the surface along which it was traveling smoothly – to land upon the lower level of the drapery beyond the fold. That little passage is the “catastrophe.” In the present context, what is especially relevant about this conceptualization of the “event” experienced by your finger is its generic nature: catastrophes thus conceived are not phenomena belonging to a category delimited by some size dimension of the system in which they occur, or according to the severity of their sequelae; nor are they to be uniquely associated with processes that that operate only in one or another range of temporal velocities (whether slow, or fast). Instead, the catastrophes to which this essay’s title refers are fractal, possessing the property of self-similarity.
Similar to what? He compares the conditions that led to the May 6 price break to the phenomenon known as “flaming.” One party breaks off a previously civil exchange with hostile abusive comment. Instead of turning it aside, others sometimes reciprocate. Anonymity is the key part of the process; isolation seems to remove inhibitions that would brake the process if the exchanges took place face to face. Silence ensues, or, worse yet, digital versions of what long ago were called “slam books” – compendia of the faults of others, sufficient to fragment the conversation once and for all. (This is the problem with Glen Beck and much of the rest of Fox News.)
Humans evolved to recognize from infancy the effect of their actions on others – facial expressions, body language, tone of voice, he notes. On the Internet, however, no one knows when they may come across as a flame-throwing tank. It is why humor is so risky on the Web.
Sunday, October 03, 2010
Exchange traded fx products
"For investors who do not want to take simple long/short positions, an alternative tactical approach to foreign exchange markets is offered by Deutsche Bank and its db x-trackers currency returns ETF. This combines three strategies widely used by traders in currency markets: carry, momentum and valuation. Like a quantitative hedge fund, it uses a rules-based process to take long and short positions in G10 currencies with regular rebalancing of the components."
Saturday, October 02, 2010
Market or command
In a new book called “The Dragonfly Effect: Quick, Effective, and Powerful Ways to Use Social Media to Drive Social Change,” the business consultant Andy Smith and the Stanford Business School professor Jennifer Aaker tell the story of Sameer Bhatia, a young Silicon Valley entrepreneur who came down with acute myelogenous leukemia. It’s a perfect illustration of social media’s strengths. Bhatia needed a bone-marrow transplant, but he could not find a match among his relatives and friends. The odds were best with a donor of his ethnicity, and there were few South Asians in the national bone-marrow database. So Bhatia’s business partner sent out an e-mail explaining Bhatia’s plight to more than four hundred of their acquaintances, who forwarded the e-mail to their personal contacts; Facebook pages and YouTube videos were devoted to the Help Sameer campaign. Eventually, nearly twenty-five thousand new people were registered in the bone-marrow database, and Bhatia found a match.
Tuesday, September 28, 2010
Commodity fund
Because of the capital costs of holding commodities directly, investing is almost exclusively done using futures (exceptions include commodity producers, consumers, etc.) Commodity indices, ETFs, ETNs and mutual funds manage their portfolios very similarly when using futures contracts. For the most part, they construct the portfolio by purchasing near-dated futures contracts. As the contracts near maturity, they sell the contract at or near the spot price of the commodity and purchase new near-dated contracts and the process repeats itself. The frequency and magnitude of this roll leads to the importance of the yield it generates.
Unfortunately, investing in commodity futures contracts can be complicated since total returns are comprised of three return components:
- Collateral Yield: Futures contracts require very little collateralization (~10%). The remainder is frequently invested in high-quality, short-term instruments such as a 90-Day T-Bill. The yield from these investments is often very small relative to the total return and is known as the collateral yield.
- Spot Price Change/Yield: This represents the price change in the underlying commodity contract and is often quoted during a discussion of a commodity’s return. Investors are usually seeking exposure to these returns when choosing to invest in commodities.
- Roll Yield: This component of return is the focal point of the recent articles and is a little more complicated. Commodity investors (e.g. indices, funds, etc.) tend to buy near-dated contracts (e.g. 1-month from expiration) and sell them just prior to settlement. The revenue generated is immediately used to purchase another near-dated contract to maintain exposure to the commodity. This process continues indefinitely and represents the roll yield (sale price less purchase price). If the subsequent purchase cost is less than the revenue gained from the sale, then the roll yield is positive; if the sale prices is less than the purchase price the roll yield is negative. A positive roll yield is referred to as backwardation while a negative yield is called contango.
Saturday, September 25, 2010
Information
Most fundamentally, and perhaps most challenging for researchers, the crisis should motivate economists to think further about their modeling of human behavior. Most economic researchers continue to work within the classical paradigm that assumes rational, self-interested behavior and the maximization of "expected utility"--a framework based on a formal description of risky situations and a theory of individual choice that has been very useful through its integration of economics, statistics, and decision theory.9 An important assumption of that framework is that, in making decisions under uncertainty, economic agents can assign meaningful probabilities to alternative outcomes. However, during the worst phase of the financial crisis, many economic actors--including investors, employers, and consumers--metaphorically threw up their hands and admitted that, given the extreme and, in some ways, unprecedented nature of the crisis, they did not know what they did not know. Or, as Donald Rumsfeld might have put it, there were too many "unknown unknowns." The profound uncertainty associated with the "unknown unknowns" during the crisis resulted in panicky selling by investors, sharp cuts in payrolls by employers, and significant increases in households' precautionary saving.
The idea that, at certain times, decisionmakers simply cannot assign meaningful probabilities to alternative outcomes--indeed, cannot even think of all the possible outcomes--is known as Knightian uncertainty, after the economist Frank Knight who discussed the idea in the 1920s. Although economists and psychologists have long recognized the challenges such ambiguity presents and have analyzed the distinction between risk aversion and ambiguity aversion, much of this work has been abstract and relatively little progress has been made in describing and predicting the behavior of human beings under circumstances in which their knowledge and experience provide little useful information.10 Research in this area could aid our understanding of crises and other extreme situations. I suspect that progress will require careful empirical research with attention to psychological as well as economic factors.
Tuesday, September 21, 2010
Not poisoned but starved
No, he does not die, because his species and that of the creature on this foreign planet do not share an evolutionary past or a common ancestor. Although they may both be made of proteins formed from amino acids, their independent evolutionary paths should made it highly improbable that they use similar neurotransmitter molecules within their respective brains and bodies. Every spaceman from Flash Gordon to Captain Kirk to Luke Skywalker should feel safe walking around any planet (except their own) with impunity from animal and plant toxins. For this same reason, the intoxicating drinks and powerful medicines that always seem to be popular in these foreign worlds in science fiction movies would also have totally different effects, if any effects at all, on the brains of our plucky spaceman. Eating otherworldly foods might be the most disappointing and distressing experience of all: Even if they were filling and somehow tasted delicious, as products of utterly alien biochemistries they would probably prove devoid of nourishment for our Earthly bodies. Thus, starvation might be the greatest threat to any future explorers of alien biospheres. Unless, perhaps, they’d brought along a large supply of chocolate.
Monday, September 20, 2010
Risk
Second is the pro-cyclical nature of value-at-risk, a measure of the risk of loss. Recent high market volatility is sharpening attention towards risk and the need to measure and manage it. At the same time, rapid financial innovation has increased the ability to monitor and control risks, allowing measures like Var to gain further ground. This would all be good news, if the markets were using the right type of Var for establishing the risk limits.
Generally, when prices move down, Var goes up, eventually triggering the risk limits and thus enlarging the troops of sellers. Symmetrically, the reduction of Var in good times encourages traders and fund managers to pile on risk, increasing their risk exposures when prices are already high and while demand is thriving. This can compound the positive feedback mentioned earlier.
The interesting thing here is the way that a period of low volatility will provide a sample of low volatility and increased risk taking. Increased volatility leads to less risk taking. Can we model this?
Wednesday, September 08, 2010
Mobile phone and microfinance
Saturday, August 21, 2010
Washington Consensus
John Williamson (1990) did all a great favor by writing down the rules for what he called “The Washington Consensus” for developing countries to follow to absorb aid efficiently:
- Fiscal policy discipline.
- Redirection of public spending from subsidies (“especially in discriminate subsidies” toward broad-based provision of key pro-growth, pro-poor services like primary education, primary health care, and infrastructure;
- Tax Reform—broadening the tax base and adopting moderate marginal tax rates:
- Interest rates that are market determined and positive (but moderate) in real terms;
- Competitive exchange rates;
- Trade liberalization—with particular emphasis on the elimination of quantitative restrictions; any trade protection to be provided by low and relatively uniform tariffs;
- Liberalization of inward foreign direct investment;
- Privatization of state enterprises;
- Deregulation—abolish regulations that impede market entry or restrict competition, except for those justified on safety, environmental and consumer protection grounds, and prudent oversight of financial institutions.
- Legal security for property rights.
To provide perspective on these ten rules, the year 1990, when Williamson wrote, is important. It was just after the fall of the Berlin Wall and the complete collapse of confidence in Soviet-style socialism. The rules reflect the hegemonic confidence that most people then had in liberal market-oriented capitalism—think Ronald Reagan and Margaret Thatcher. But, 20 years later, should the meteoric rise of socialist China—both in its own remarkable growth in living standards, and in the effectiveness of its foreign “aid” to developing countries, undermine our confidence in Williamson’s Washington Consensus?
Thursday, August 19, 2010
Copyright and competition
In Germany during the same period, publishers had plagiarizers -- who could reprint each new publication and sell it cheaply without fear of punishment -- breathing down their necks. Successful publishers were the ones who took a sophisticated approach in reaction to these copycats and devised a form of publication still common today, issuing fancy editions for their wealthy customers and low-priced paperbacks for the masses.
Monday, August 16, 2010
European money markets
Monday, July 26, 2010
Power law and SMEs
The National Endowment for Science, Technology and the Arts, an independent trade body, calculates that just 6 per cent of the highest growth businesses generated 54 per cent of new jobs over the last decade.
Saturday, July 03, 2010
Changes in microsctures
In addition, stock market structure today is geared for large‐capitalization stocks with typically symmetrical order books but disastrous for the vast majority of small‐capitalization stocks with asymmetrical order books (where there is not naturally an offsetting buy order to match against a sell order and vice versa)... The “Flash Crash” was an example of where even normally liquid securities went to a state of “asymmetry” and price discovery broke down...
[Until] all trades, quotes and other messages in all interrelated markets are tagged and traceable to the trading venue, broker and ultimate investor, and disclosed to the market, markets will not be perceived as fair... With full tagging, tracking and reporting and the application of posttrade analysis and test bed techniques such as Agent‐Based Models, regulators and market participants will... once and for all be in a position to judge the impact of other participants and to regulate and plan accordingly...
Liquidity Preference
Because... our desire to hold Money as a store of wealth is a barometer of the degree of our distrust of our own calculations and conventions concerning the future.... The significance of this characteristic of money has usually been overlooked; and in so far as it has been noticed, the essential nature of the phenomenon has been misdescribed. For what has attracted attention has been the quantity of money which has been hoarded... supposed to have a direct proportionate effect on the price level through affecting the velocity of circulation. But the quantity of hoards can only be altered either if the total quantity of money is changed or if the quantity of current money income (I speak broadly) is changed; whereas fluctuations in the degree of confidence are capable of... modifying... the premium which has to be offered to induce people not to hoard. And changes in... liquidity preference... affect, not [consumer] prices, but the rate of interest.
Monday, June 21, 2010
Keynes and uncertainty
By ‘uncertain’ knowledge, let me explain, I do not mean merely to distinguish what is known for certain from what is only probable. The game of roulette is not subject, in this sense, to uncertainty; nor is the prospect of a Victory bond being drawn. Or, again, the expectation of life is only slightly uncertain.... The sense in which I am using the term is that in which the prospect of an European war is uncertain, or the price of copper and the rate of interest twenty years hence, or the obsolescence of a new invention, or the position of private wealth-owners in the social system in 1970. About these matters their is no scientific basis on which to form any calculable probability whatever. We simply do not know. Nevertheless, the necessity for action and for decision compels us as practical men to do our best to overlook this awkward fact and to behave exactly as we should if we had behind us a good Benthamite calculation.... How do we manage?... (1) We assume that the present is a much more serviceable guide to the future than a candid examination of past experience would show it.... (2) We assume that the existing state of opinion as expressed in prices and the character of existing output is based on a correct summing up of future prospects.... (3) Knowing that our individual judgment is worthless, we endeavour to fall back on the judgment of the rest of the world which is perhaps better informed....
Wednesday, June 16, 2010
Market making or trading
Tuesday, June 15, 2010
Run on the bank
I presently resolved of my father’s and wife’s going into the country; and, at two hours’ warning, they did go by the coach this day, with about 1300l.in gold in their night-bag. Pray God give them good passage, and good care to hide it when they come home! but my heart is full of fear: They gone, I continued in fright and fear what to do with the rest. W. Hewer hath been at the banker’s, and hath got 500l. out of Backewell’s hands of his own money; but they are so called upon that they will be all broke, hundreds coming to them for money: and their answer is, “It is payable at twenty days — when the days are out, we will pay you;” and those that are not so, they make tell over their money, and make their bags false, on purpose to give cause to retell it, and so spend time. I cannot have my 200 pieces of gold again for silver, all being bought up last night that were to be had, and sold for 24 and 25s. a-piece.
Friday, June 11, 2010
Power law
Instead, it said that a tiny number – just1%0.1% (corrected: incorrect figure given by O2 initially) of smartphone users – are using 36% of its total mobile data traffic, and that they needed to be encouraged to change their behaviour.