Federal Reserve Bank of St. Louis
Institutional Affiliations: Federal Reserve Bank of St. Louis and School of Economics and Management, Tsinghua University
Information about this author at RePEc
NBER Working Papers and Publications
|March 2013||Uncertainty 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 2012||Sentiments 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 demand, optimal decisions based on sentiments can generate stochastic self-fulfilling rational expectations equilibria in standard economies without persistent informational frictions, externalities, non-convexities or strategic complementarities in production. The models we consider are deliberately simple, but could serve as benchmarks for more complicated equilibrium models with additional features.
Published: Jess Benhabib & Pengfei Wang & Yi Wen, 2015. "Sentiments and Aggregate Demand Fluctuations," Econometrica, Econometric Society, vol. 83, pages 549-585, 03. citation courtesy of