Dr. Michael Piwowar first worked for the SEC as a visiting scholar from the University of Iowa and in 2004; he joined the SEC in the commission's office of economic analysis.In 2013 he was appointed to the commission by President Obama after having served as chief economist for the Senate Banking Committee and he was designated Acting Chairman of the Commission from January to May 2017. In July of this year he stepped down and ended his long career and term of service to the SEC where he worked on a number of important oversight issues such as investor protection, market structure, and capital formation.This week on a Closer Look, Dr. Michael Piwowar discusses corporate bond liquidity, bond markets, regulation and transparency.