1. Carlos M. Carvalho is Assistant Professor of Econometrics and Statistics, The University of Chicago, Graduate School of Business, Chicago, IL 60637 . Jeffrey Chang is Postdoctoral Fellow, Institute for Genome Sciences and Policy, Duke University, Durham, NC 27710. Joseph E. Lucas is Assistant Research Professor, Institute for Genome Sciences and Policy, Duke University, Durham, NC 27710, and Assistant Research Professor, Department of Statistical Science, Duke University, Durham, NC 27708. Joseph R....