NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Publications by Yi Wen

Contact and additional information for this authorAll publicationsWorking Papers only

Working Papers and Chapters

March 2013Uncertainty and Sentiment-Driven Equilibria
with Jess Benhabib, Pengfei Wang: w18878
We construct a model to capture the Keynesian idea that production and employment decisions are based on expectations of aggregate demand driven by sentiments, and that realized demand follows from the production and employment decisions of firms. We cast the Keynesian idea into a simple model with imperfect information about aggregate demand and we characterize the rational expectations equilibria of this model. We find that the equilibrium is not unique despite the absence of any non-convexities or strategic complementarity in the model. In addition to multiple fundamental equilibria, there can be serially correlated stochastic equilibria driven by self-fulfilling consumer sentiments. Furthermore, these sentiment-driven equilibria are not based on randomizations of the fundamental equili...
September 2012Sentiments and Aggregate Demand Fluctuations
with Jess Benhabib, Pengfei Wang: w18413
We formalize the Keynesian insight that aggregate demand driven by sentiments can generate output fluctuations under rational expectations. When production decisions must be made under imperfect information about aggregate demand, optimal decisions based on sentiments can generate stochastic self-fulfillng rational expectations equilibria in standard economies without aggregate shocks, externalities, persistent informational frictions, or even any strategic complementarity. Our general equilibrium model is deliberately simple, but could serve as a benchmark for more complicated equilibrium models with additional features.

Contact and additional information for this authorAll publicationsWorking Papers only

 
Publications
Activities
Meetings
Data
People
About

Support
National Bureau of Economic Research, 1050 Massachusetts Ave., Cambridge, MA 02138; 617-868-3900; email: info@nber.org

Contact Us