NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Martin Kaae Jensen

School of Economics
University of Surrey
United Kingdom

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Institutional Affiliation: University of Surrey

NBER Working Papers and Publications

December 2018Equilibrium Analysis in the Behavioral Neoclassical Growth Model
with Daron Acemoglu: w25363
Rich behavioral biases, mistakes and limits on rational decision-making are often thought to make equilibrium analysis much more intractable. We show that this is not the case in the context of the neoclassical growth model (potentially incorporating incomplete markets and distortions). We break down the response of the economy to a change in the environment or policy into two parts: a direct response at a given vector of prices, and an equilibrium response that plays out as prices change. We refer to a change as a “local positive shock” if the direct response, when averaged across households, increases aggregate savings. Our main result shows that under weak regularity conditions, regardless of the details of behavioral preferences, mistakes and constraints on decision-making, the long-ru...
June 2012Robust Comparative Statics in Large Dynamic Economies
with Daron Acemoglu: w18178
We consider infinite horizon economies populated by a continuum of agents who are subject to idiosyncratic shocks. This framework contains models of saving and capital accumulation with incomplete markets in the spirit of works by Bewley, Aiyagari, and Huggett, and models of entry, exit and industry dynamics in the spirit of Hopenhayn's work as special cases. Robust and easy-to-apply comparative statics results are established with respect to exogenous parameters as well as various kinds of changes in the Markov processes governing the law of motion of the idiosyncratic shocks. These results complement the existing literature which uses simulations and numerical analysis to study this class of models and are illustrated using a number of examples.

Published: Daron Acemoglu & Martin Kaae Jensen, 2015. "Robust Comparative Statics in Large Dynamic Economies," Journal of Political Economy, University of Chicago Press, vol. 123(3), pages 587 - 640. citation courtesy of

 
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