The evolution of the U.S. economy over the past 55 years is examined through the lens of a micro-founded model that allows for changes in the behaviour of the Federal Reserve and in the volatility of structural shocks. Agents are aware of the possibility of regime changes and their beliefs...

This paper considers the role of foreign investors in developed country equity markets. It presents a quantitative model of trading that is built around two new assumptions about investor sophistication: (i) both the foreign and domestic populations contain investors with superior information...

This paper considers learning when the distinction between risk and ambiguity matters. It first describes thought experiments, dynamic variants of those provided by Ellsberg, that highlight a sense in which the Bayesian learning model is extreme-it models agents who are implausibly ambitious...

This paper considers the role of foreign investors in developed country equity markets. It presents a quantitative model of trading that is built around two new assumptions about investor sophistication: ("i") both the foreign and domestic populations contain investors with superior information...

This paper provides a model of boom-bust episodes in middle-income countries. It is based on sectoral differences in corporate finance: the nontradables sector is special in that it faces a contract enforceability problem and enjoys bailout guarantees. As a result, currency mismatch and...

This paper considers learning when the distinction between risk and ambiguity matters. It first describes thought experiments, dynamic variants of those provided by Ellsberg, that highlight a sense in which the Bayesian learning model is extreme—it models agents who are implausibly ambitious...

This paper provides a model of boom-bust episodes in middle-income countries. It is based on sectoral differences in corporate finance: the nontradables sector is special in that it faces a contract enforceability problem and enjoys bailout guarantees. As a result, currency mismatch and...