More than six years after the recovery from the Great Recession of 2007-2009, Massachusetts’ overall economy and labor markets have improved markedly. However, the gain in employment has not been uniform across age groups. The youngest workers (16-to-19 years old) continue to be disconnected from the labor market. This research report assesses the year-round and summer employment experiences of teens in Massachusetts and the U.S. over the past 4 decades (1978-1979 to 2015-2016).