Washington D.C., March 1, 2016 â" The Clearing House has hired two former senior Federal Reserve economists to lead its research efforts. Dr. William R. Nelson will become Head of Research and Chief Economist on March 7th and Dr. Francisco Covas joined TCH in February as Deputy Head of Research. Dr. Nelson most recently served as a Deputy Director of the Division of Monetary Affairs at the Federal Reserve Board; Dr. Covas was an Assistant Director in Monetary Affairs.