Unemployment recoveries in the US have been inexorable. Between 1948 and 2019, the annual reduction in the unemployment rate during cyclical recoveries was fairly tightly distributed around 0.1 log points per year. The economy seems to have an irresistible force toward restoring full employment....

We propose a model of business cycles for an economy that is characterized by involuntary unemployment and being dependent on energy imports. The presence of both factors increases aggregate volatility in a well-defined way: even in the absence of increasing returns to scale or high labor supply...

We propose a new business cycle theory. Firms need to randomize over firing or keeping workers who have performed poorly in the past, in order to give them an ex-ante incentive to exert effort. Firms have an incentive to coordinate the outcome of their randomizations, as coordination allows them...