In the tradition that began in 2014, The Laboratory for Aggregate Economics and Finance is pleased to sponsor the Second Annual Macroeconomics and Business Cycle Conference May 11-14, 2015. The objective of the workshop is to combine recent developments in quantitative macro with frontier theoretical research. The conference will feature about 17 talks over four mornings, with ample time for informal discussion among the participants in the afternoons. The conference organizers are Carlos Garriga (Federal Reserve Bank of St. Louis) and Peter Rupert (UCSB).