NBER Working Paper No. 16571
---- Acknowledgements -----
I would like to thank Michele Boldrin, Carlos Garriga, Christopher Neely, Adrian Peralta-Alva, Yongseok Shin, the Washington University Economic Theory Reading Group, and most especially the Research Seminar at the St. Louis Federal Reserve Bank for helpful comments. NSF grant SES-0851315 provided financial assistance. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research.