We develop a unified theory of endogenous business cycles in which expansions are neoclassical growth periods driven by productivity improvements and capital accumulation, while downturns are the result of Keynesian contractions in aggregate demand below potential output. Recessions allow...

A Schumpeterian process of creative destruction can induce a rational herd behavior by entrepreneurs across various sectors of the economy that may look like it is fuelled by "animal spirits." Across cyclical economies, a negative relationship emerges between volatility and growth, and the...