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.
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Another side of the credit crunch

Gillian Tett assesses the fall in credit card debt and use of plastic. It should not be a great surprise given the increase in the savings rate.

"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.

Skin in the game - indeed

Finance is in need of a technological revolution - FT.com: "Less than two months before the Facebook fiasco, another IPO suffered an even more shocking fate. BATS Global Markets, which operates the third-largest stock exchange in the US, went public on its own exchange. If ever an organisation had sufficient “skin in the game” to get it right, it was BATS and if ever there was a time when getting it right really mattered, it was on the day of BATS’s own IPO. So when BATS debuted at an opening price of $15.25, no one expected it to plunge to less than a tenth of a penny in a second and a half due to a software error affecting stocks whose ticker symbols began with the letter A or B. The ensuing confusion was so great that BATS suspended trading in its own stock and ultimately cancelled its IPO."

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."

Rajiv Sethi: Belief Heterogeneity

Rajiv Sethi: Belief Heterogeneity the paper described here analyses competing views.  This can be used in the model of speculation and the carry trade in particular.  The simple carry trade is successful for some time and the more successful it is, the more traders are drawn to the trade, increasing its success.  It requires a shock to burst the bubble.

"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. "

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Crowds and networds

Tim Harford highlights the work of Mark Granovetter on networks and crowds.

: "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.  

Finance must escape the shadows - FT.com

Excellent.

John Kay - The parable of the ox

Interesting - though I am not sure that the Chicago model (Black-Scholes?) manages to generate a price from thin air - it needs important elements (such as the current price and the estimate of volatility).  It is also important to remember that there are people like Buffett making guesses and if the crowd is very wrong, he will be the closest.  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. '

How Do You Choke Away the British Open? The Science of the Tight Collar | Wired Science | Wired.com

The explanation for why English Premier League players can be good for their club and poor for their country (outside ability of the rest of the team).

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

It raises the question of how different are the private and public institutions.

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"

Models

Krugman explains that models are tools or simplifications that are used to solve a problem.  However, the assumptions of the model cannot be used to explain the implications of the model.  That would be circular.  Gadgets Versus Fundamentals (Wonkish) - NYTimes.com:

"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."

George Monbiot – False Summit

George Monbiot – False Summit: "We were wrong about peak oil: there’s enough in the ground to deep-fry the plane"

It is always dangerous to make forecasts.  There is always some unsuspecting element that can crop up.

and then!

Monbiot peak oil u-turn based on bad science, worse maths

http://www.davidstrahan.com/blog/?p=1576

Oil glut forecaster Maugeri admits duff maths
http://www.davidstrahan.com/blog/?p=1570

David Strahan

Energy writer

Easter Island - people or rats?

Easter Island 

"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.

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Andrew Gelman on political statistics

Andrew Gelman on How Americans Vote | FiveBooks | The Browser: "The idea is that these people know enough about us so that they can manipulate our vote. Realistically, political consultants nowadays know a lot about us, and they do try to convince us. There are two kinds of people they follow. One is people where they know who they’re going to vote for, but they’re not sure that they’re going to vote. The other is people who are very likely to vote, but you don’t know which way they’re going to vote. The first type of person they try to mobilise just to turn out and vote, and the second kind of person they try to persuade. They’re pretty good at knowing who people are. In fact, at this point, a lot of this is just a question of resources. To the extent they have resources they will go out to people and call you on the phone. If they think you’re already likely to vote for a certain candidate, they’ll try to find somebody to knock on your door and convince you that it’s an important election and it’s worth voting for. In some sense it’s not as mysterious or conspiratorial as it’s made out to be in that book."

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Greece’s ailing economy grinds to a halt - FT.com

The FT.com looks at the effect that a lack of credit is having on the Greek economy.

"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."

Bond market liquidity

FT.com: discusses the lack of liquidity in the corporate bond market.  A combination of risk-aversion, Volcker rule and capital costs seem to have combined to encourage banks to hold less inventory.  

 "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.
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."'

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.

Social network vs critics

The Guardian: reports on a Harvard business school study that compares Amazon book reviews to critics and finds that evaluation is similar, though the reviews are swift to find new authors.

 "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)"."

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Collateral and rating

A good overview of the effect of rating downgrade and increased risk aversion on the profitability of investment banks and, inevitably, the liquidity of financial markets.

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.

International holding of bonds and capital

International holding of government bonds.

Bank adequacy: weight and see - FT.com: "But what would be the effect of removing the zero weighting on banks’ domestic sovereign debt holdings? In its latest stability report, the IMF takes a stab at estimating the “correct” risk weightings to use, via default rates embedded in sovereign credit default swap spreads. Doing this lowers the average capital adequacy ratios across banks in emerging countries by 2-3 percentage points – no small sum. Ratios for European banks fall by less, between 0.5-2 percentage points. The reduction for US lenders is smaller still. Even so, more capital would be needed."

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Funds move directly into loan market

If funds cannot If funds cannot get access to loans via structured products, can they go into the market themselves by making loans?  M&G are in £266m property financing deal - FT.com  

"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."

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