Eric Beinhocker, Nick Hanauer [Archive.org URL]

For the past century, the dominant economic paradigm—neoclassical economics—has painted a narrow and mechanistic view of how capitalism works, focusing on the role of markets and prices in the efficient allocation of society’s resources. The story is familiar: rational, self-interested firms maximize profits; rational, self-interested consumers maximize their “utility”; the decisions of these actors drive supply to equal demand; prices are set; the market clears; and resources are allocated in a socially optimal way.

Over the past several decades, though, some of the bedrock assumptions of neoclassical theory have begun to unravel. Behavioral economists have accumulated a mountain of evidence showing that real humans don’t behave as a rational homo economicus would. Experimental economists have raised awkward questions about the very existence of utility; and that is problematic because it has long been the device economists use to show that markets maximize social welfare. Empirical economists have identified anomalies suggesting that financial markets aren’t always efficient. And the macroeconomic models built on neoclassical ideas performed very poorly during the financial crisis.

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