We develop a theory of endogenous and stochastic fluctuations in economic activity. Individual firms choose to randomize over firing or keeping workers who performed poorly in the past to give them an ex-ante incentive to exert effort. Different firms choose to correlate the outcome of their...

We develop a theory of endogenous and stochastic fluctuations in economic activity. Individual firms choose to randomize over firing or keeping workers who performed poorly in the past to give them an ex-ante incentive to exert effort. Different firms choose to correlate the outcome of their...

The Hodrick-Prescott filter applied to seasonally adjusted series has become a paradigm for business-cycle estimation at many economic agencies and institutions. We show that the filter can be obtained from MMSE estimation of the components in an unobserved component model, where the original...

The study uses a bivariate unobserved components model for output and the unemployment rate in order to examine stylised facts of the cyclical behaviour of unemployment and to estimate the size of persistence. The model is applied to the U.S., Canada, and major European economies. Estimates of...

The study uses a bivariate unobserved components model for output and the unemployment rate in order to examine stylised facts of the cyclical behaviour of unemployment and to estimate the size of persistence. The model is applied to the U.S., Canada, and major European economies. Estimates of...