Labor productivity (LP) in the United States has gone from being procyclical to acyclical since the mid-1980s. Using industry-level data, this paper first shows that total factor productivity (TFP), which is LP net of capital deepening, has also become much less correlated with output as well as...

US labor and total factor productivity have historically been procyclical — rising in booms and falling in recessions. After the mid-1980s, however, total factor productivity became much less procyclical with respect to hours while labor productivity turned strongly countercyclical. We find...

Historically, U.S. labor productivity (output per hour) and total factor productivity (TFP) rose in booms and fell in recessions. Different models of business cycles explain this procyclicality differently. Traditional Keynesian models relied on \\"factor hoarding,\\" that is, variations in how...