Arnold Kling, writing in the Wall Street Journal, explains why (if his new theories are validated) governments have been doing exactly the wrong things to help the economy recover:
… I believe that the process of creating employment is explained not by the theories of Keynes, but rather by the theories of Adam Smith and David Ricardo. Smith famously described the advantages of specialization and division of labor. Ricardo pointed out the gains from trade that come from consuming goods that others produce more efficiently. From the perspective of Smith and Ricardo, real jobs emerge in the context of patterns of sustainable specialization and trade.
Unfortunately, the patterns of specialization and trade that had emerged five years ago were not sustainable. Many jobs in home construction, durable-goods manufacturing and distribution, and mortgage finance were dependent on housing markets with ever-rising prices. In the U.S. and the U.K. in particular, the finance industry expanded well beyond its true economic value. Once the property bubbles burst, these jobs were exposed as not viable. Meanwhile, ongoing creative destruction brought about by the Internet and globalization have continued to allow substitution of capital and emerging-market labor for industrialized countries’ labor in many sectors. Together, these phenomena have caused widespread dislocation.
More government spending will not bring back the days when supposedly triple-A-rated mortgage securities could be fashioned out of dodgy loans to unqualified borrowers. Doing so would not halt the ongoing improvements in productivity in manufacturing and retail trade. It would not facilitate the adjustments that are needed in the mix of skills in the labor force. The necessary adjustments can only be made by the decentralized efforts of entrepreneurs.
[. . .]
The word “sustainable” in “patterns of sustainable specialization and trade” refers to profitability. Patterns that are profitable can be sustained. Patterns that are not profitable must eventually be shut down. That is the problem with patterns of trade created by government borrowing and spending: They are not sustainable, as has been illustrated in the U.S. by the failure of many of the “green energy” companies supported by President Obama’s stimulus package. Moreover, as European policy makers have discovered, there are limits to how much governments can borrow to fund their experimentations in specialization and trade.