I was highly critical of Paul Krugman’s recent academic paper on the financial crisis, because it argued, on neoclassical a priori grounds, that:
Ignoring the foreign component, or looking at the world as a whole, the overall level of debt makes no difference to aggregate net worth — one person’s liability is another person’s asset. (p. 3)
Given that criticism, I feel obliged to point out that in his recent comment on Rick Perry’s nomination for the Presidency, “The Texas Unmiracle”, Krugman makes a very sensible observation about the importance of “the overall level of debt” that contradicts the assumption he made in that paper. Observing that Texas’s allegedly better performance on employment growth is due mainly to “cheap labor”, Krugman comments that: