Gross flows—the creation and destruction of specific jobs or the movement of workers into and out of employment—are the immediate outcomes of labor market processes. Firms create and destroy jobs. Workers enter and leave employment. Usually all such developments are condensed into a single number, the net change in employment data. In this article Joseph A. Ritter investigates several measures of gross flows, which reveal some striking features of U.S. labor markets and suggest new perspectives on how the economy operates.