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Author:Huo, Zhen 

Working Paper
Engineering a paradox of thrift recession
We build a variation of the neoclassical growth model in which financial shocks to households or wealth shocks (in the sense of wealth destruction) generate recessions. Two standard ingredients that are necessary are (1) the existence of adjustment costs that make the expansion of the tradable goods sector difficult and (2) the existence of some frictions in the labor market that prevent enormous reductions in real wages (Nash bargaining in Mortensen-Pissarides labor markets is enough). We pose a new ingredient that greatly magnifies the recession: a reduction in consumption expenditures reduces measured productivity, while technology is unchanged due to reduced utilization of production capacity. Our model provides a novel, quantitative theory of the current recessions in southern Europe.
AUTHORS: Rios-Rull, Jose-Victor; Huo, Zhen
DATE: 2013

Working Paper
Organizational Equilibrium with Capital
This paper proposes a new equilibrium concept - organizational equilibrium - for models with state variables that have a time inconsistency problem. The key elements of this equilibrium concept are: (1) agents are allowed to ignore the history and restart the equilibrium; (2) agents can wait for future agents to start the equilibrium. We apply this equilibrium concept to a quasi-geometric discounting growth model and to a problem of optimal dynamic fiscal policy. We find that the allocation gradually transits from that implied by its Markov perfect equilibrium towards that implied by the solution under commitment, but stopping short of the Ramsey outcome. The feature that the time inconsistency problem is resolved slowly over time rationalizes the notion that good will is valuable but has to be built gradually.
AUTHORS: Bassetto, Marco; Rios-Rull, Jose-Victor; Huo, Zhen
DATE: 2018-11-30

Journal Article
Realistic neoclassical multiplier
Standard neoclassical models are unable to generate large values for the fiscal multiplier, the aggregate economic response to increased government spending. Empirical estimates place the multiplier between 0.7 and 1.0. Standard models deliver figures close to zero. In an earlier policy paper, we modified the standard model, with features of demand-based productivity. These modifications raised the figure to just 0.17, still very far from the range found in the empirical literature.
AUTHORS: Rios-Rull, Jose-Victor; Huo, Zhen
DATE: 2013

Journal Article
The Great Recession and Financial Shocks
A case can be made for the Great Recession being the result of a large financial shock that makes household borrowing difficult. The channel involves large reductions in house prices, which trigger sharp reductions in consumption. {{p}} We discuss the ingredients necessary for a quantitative macroeconomic model to successfully implement such a theory. They include: wealth heterogeneity, where the majority of the population needs to acquire financing to purchase houses despite the large amount of wealth in the economy; sizable real frictions that hinder the transformation of consumption into exports and investment and that constrain the increase of household working hours; and a role for expenditures in contributing to productivity.
AUTHORS: Rios-Rull, Jose-Victor; Huo, Zhen
DATE: 2016-02-09

Report
Engineering a paradox of thrift recession
We build a variation of the neoclassical growth model in which financial shocks to households or wealth shocks (in the sense of wealth destruction) generate recessions. Two standard ingredients that are necessary are (1) the existence of adjustment costs that make the expansion of the tradable goods sector difficult and (2) the existence of some frictions in the labor market that prevent enormous reductions in real wages (Nash bargaining in Mortensen-Pissarides labor markets is enough). We pose a new ingredient that greatly magnifies the recession: a reduction in consumption expenditures reduces measured productivity, while technology is unchanged due to reduced utilization of production capacity. Our model provides a novel, quantitative theory of the current recessions in southern Europe.
AUTHORS: Huo, Zhen; Rios-Rull, Jose-Victor
DATE: 2012

Report
Paradox of thrift recessions
We build a variation of the neoclassical growth model in which both wealth shocks (in the sense of wealth destruction) and financial shocks to households generate recessions. The model features three mild departures from the standard model: (1) adjustment costs make it difficult to expand the tradable goods sector by reallocating factors of production from nontradables to tradables; (2) there is a mild form of labor market frictions (Nash bargaining wage setting with Mortensen-Pissarides labor markets); (3) goods markets for nontradables require active search from households wherein increases in consumption expenditures increase measured productivity. These departures provide a novel quantitative theory to explain recessions like those in southern Europe without relying on technology shocks.
AUTHORS: Huo, Zhen; Rios-Rull, Jose-Victor
DATE: 2013

Report
Financial Frictions, Asset Prices, and the Great Recession
We study financial shocks to households? ability to borrow in an economy that quantitatively replicates U.S. earnings, financial, and housing wealth distributions and the main macro aggregates. Such shocks generate large recessions via the negative wealth effect associated with the large drop in house prices triggered by the reduced access to credit of a large number of households. The model incorporates additional margins that are crucial for a large recession to occur: that it is difficult to reallocate production from consumption to investment or net exports, and that the reductions in consumption contribute to reductions in measured TFP.
AUTHORS: Huo, Zhen; Rios-Rull, Jose-Victor
DATE: 2016-02-05

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