DP13006 Macroeconomics with Heterogeneous Agents and Input-Output Networks
|Author(s):||David Rezza Baqaee, Emmanuel Farhi|
|Publication Date:||June 2018|
|Date Revised:||December 2018|
|Keyword(s):||aggregation, comovement, Heterogeneous Agents, production networks, propagation|
|Programme Areas:||Monetary Economics and Fluctuations, Macroeconomics and Growth|
|Link to this Page:||cepr.org/active/publications/discussion_papers/dp.php?dpno=13006|
The goal of this paper is to simultaneously unbundle two interacting reduced-form building blocks of traditional macroeconomic models: the representative agent and the aggregate production function. We introduce a broad class of disaggregated general equilibrium models with Heterogeneous Agents and Input-Output networks (HA-IO). We characterize their properties through two sets of results describing the propagation and the aggregation of shocks. Our results shed light on many seemingly disparate applied questions, such as: sectoral comovement in business cycles; factor-biased technical change in task-based models; structural transformation; the effects of corporate taxation; and the dependence of fiscal multipliers on the composition of government spending.