Optimal Unemployment Insurance in an Equilibrium Business Cycle Model
(with Kurt Mitman) Journal of Monetary Economics 2015. Vol. 71, 99-118.
Summary: In a standard equilibrium search model, optimal unemployment insurance is pro-cyclical, and its impulse response to productivity shocks is non-monotonic.
On the Multiplicity of Monetary Equilibria: Green-Zhou Meets Lagos-Wright
(with Kasie Jean and Randall Wright), Journal of Economic Theory 145 (2010), 392-401.
Summary: Monetary models with posted prices have a continuum of equilibria, but this multiplicity of equilibria disappears when the number of sellers is finite.