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I recently fired a stray shot at Paul Krugman over his joke paper “The Theory of Interstellar Trade” (Krugman 2010), for which I have duly apologized. However in that apology I noted that Krugman has also recently published a draft academic paper presenting a New Keynesian model of debt deflation, “Debt, Deleveraging, and the Liquidity Trap: A Fisher-Minsky-Koo approach” (Eggertsson and Krugman 2010), and I observed that I wish this paper was in fact a joke. Here’s why (this is a modified extract from my forthcoming second edition of Debunking Economics, which will be published by Zed Books in about September or October this year).
