A Model of Secular Stagnation

NBER Working Paper No. 20574

Issued in October 2014

NBER Program(s):Monetary Economics



We propose an overlapping generations New Keynesian model in which a permanent (or very persistent) slump is possible without any self-correcting force to full employment. The trigger for the slump is a deleveraging shock, which creates an oversupply of savings. Other forces that work in the same direction and can both create or exacerbate the problem include a drop in population growth, an increase in income inequality, and a fall in the relative price of investment. Our model sheds light on the long persistence of the Japanese crisis, the Great Depression, and the slow recovery out of the Great Recession. It also highlights several implications for policy.

Acknowledgments

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Document Object Identifier (DOI): 10.3386/w20574

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