The NBER hosted its 38th annual Summer Institute during a three-week period in July 2015. There were more than 2,600 registered participants, and 512 research presentations. More than 20 percent of those who attended the meetings were first-time Summer Institute participants; roughly one third were NBER affiliates.
Alan Krueger of Princeton University, the past chair of the President's Council of Economic Advisers and a current research associate, delivered the 2015 Martin Feldstein Lecture, addressing the question "How Tight is the Labor Market?" He explored the challenge of measuring the number of long-term unemployed workers and estimating the extent to which the behavior of these individuals is affected by public policies and labor market conditions. An edited text of his lecture appears earlier in this issue of the NBER Reporter.
A panel discussion during the International Finance and Macroeconomics Program provided a timely opportunity for researchers to assess developments in the Greek financial crisis. Research associates Susan Athey and Guido Imbens of Stanford University delivered the 2015 Methods Lectures on "Economic Applications of Machine Learning." These lectures focused both on the econometric issues that arise in estimating machine learning models and on the applications of these models in fields such as industrial organization and health economics. All three of these presentations have been videotaped and posted on the NBER website under the "NBER Videos" Tab.
Summer Institute participants represented 440 institutions, an increase of nearly one third from just a few years ago. The Summer Institute is highly decentralized, with 55 distinct meeting sessions organized by 119 different researchers. A complete list of sessions from the 2015 Summer Institute may be found at: http://nber.org/confer/2015/SI2015/SI2015.html