"The only thing that stands between a man and what he wants from life is often merely the will to try it and the faith to believe that it is possible."

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"Economists' Grail: A Post-Crash Model"

Monday, November 29, 2010


"In the wake of a financial crisis and punishing recession that the models failed to capture, a growing number of economists are beginning to question the intellectual foundations on which the models are built. Researchers, some of whom spent years on the academic margins, are offering up a barrage of ideas that they hope could form the building blocks of a new paradigm.

Today's models emerged from a revolution of their own. In the 1970s, economists were struggling to figure out how policy moves, such as raising taxes or cutting interest rates, could change how people behave. They were also eager to subject their own reasoning to the unforgiving judge of mathematical logic.

So they populated their models with rational people who can calculate the value of various possible moves and choose the optimal path. A person deciding whether to buy a car, for example, would take into account the potential return on investing the money, the probability that car prices will rise, and the chances that an increase in tax rates will cut into her disposable income.

By translating peoples' preferences into equations, and finding the point at which they meet those of firms and other players, the models forecast an exact trajectory for the economy. That feature makes them very attractive to economists, who can plug in a change in interest rates and see precisely how the move might affect an entire country's output for the next few years.

The problem...is that the models bear too little relation to reality. People aren't quite as rational as models assume...Advocates of traditional economics acknowledge that not all decisions are driven by pure reason.

...

To keep things simple, economists leave out large chunks of reality. Before the crisis, most models didn't have banks, defaults or capital markets, a fact that proved problematic when the financial crisis hit. They tend to include only households, firms, central banks and the government. They also commonly use a single equation to represent each player, impairing the models' ability to explain the unexpected outcomes that can emerge when millions of different people interact.


...

'Economic forecasts have never been very good, and it's not clear that if we stick with the methods we're pursuing we'll do any better...We need to try something new.'"





Source

Lab-grown vehicle concept: Mercedes-Benz BIOME



Posted by Carlos Olin Montalvo at 5:07 PM 0 comments  

Space debris


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Black Friday Check-Ins

6 budget categories account for nearly 86% of the federal budget

Overall, companies plan to hire 3% more graduates across all degree levels than they hired last year

Sunday, November 28, 2010

Saturday, November 27, 2010

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Friday, November 26, 2010

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What is the web thankful for?

Wednesday, November 24, 2010

Tuesday, November 23, 2010

Posted by Carlos Olin Montalvo at 9:44 PM 0 comments  

Connection speeds for Internet users worldwide

Posted by Carlos Olin Montalvo at 10:02 AM 0 comments  

Twitter global heat map

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United States Human Development Index

Saturday, November 20, 2010

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Roubini Global Economics: Will the Fed scale up QE2?

Sunday, November 14, 2010



"One can tell a seemingly optimistic story - the threat of the double dip is behind us, setting the stage for a nice return to potential growth.  But that story holds the dark side of persistent, pernicious low levels of labor utilization.  


Still, I think now the Federal Reserve would have chosen the optimistic narrative had it not been for the obvious slowdown midyear.  Which suggests to me they are not eager to do more, especially if growth settles back in at trend.  Reinforcing that belief is the Warsh speech, which makes a strong case that further monetary policy is increasingly ineffectual and very risky.  


But even more important, he makes clear a belief that only Congress and the Administration have the tools to restore growth.   I imagine if that view is, or becomes, a widespread opinion among policymakers, we have seen the last gasp of quantitative easing.  


They have abated the financial crisis, serving as the lender of last resort, and flooded the economy with cash.  They have done what they can.  The rest is up to the fiscal authorities."


Tim Duy

The Irony of the US Economy in 2010: No Jobs + No One to Hire

SEO

Tuesday, November 9, 2010

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