Academic economists played a big role in causing the crisis says Joseph Stiglitz

Academic economists played a big role in causing the crisis. Their models were overly simplified, distorted, and left out the most important aspects. Those faulty models then encouraged policy-makers to believe that the markets would solve all the problems. Before the crisis, if I had been a narrow-minded economist, I would have been very pleased to see that academics had a big impact on policy. But unfortunately that was bad for the world. After the crisis, you would have hoped that the academic profession had changed and that policy-making had changed with it and would become more skeptical and cautious. You would have expected that after all the wrong predictions of the past, politics would have demanded from academics a rethinking of their theories. I am broadly disappointed on all accounts.

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