Paul Romer says he really hadn’t planned to trash macroeconomics as a math-obsessed pseudoscience. Or infuriate countless colleagues. It just sort of happened.
His intention actually had been to write a paper that would celebrate advances in the understanding of what drives economic growth. But when he sat down to write it in the months before taking over as the World Bank’s chief economist, Romer quickly found his heart wasn’t in it. The world economy wasn’t growing much anyway; and the math that many colleagues were using to model it seemed unrealistic. He watched a documentary about the Church of Scientology, and was struck by how groupthink can operate.
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