Using an equilibrium business cycle model, we search for agregate nonlinearities arising from the introduction of nonconvex capital adjustment costs. We find that, while such adjustment costs lead to nontrivial nonlinearities in aggregate investment demand, equilibrium investment is effectively...

This paper examines the importance of establishment-level discrete and occasional capital adjustments for aggregate business cycle dynamics. Generalized (S,s) investment rules arise through nonconvex costs of capital adjustment within an otherwise standard equilibrium business cycle model, and...

Many kinds of economic behavior appear to be governed by discrete and occasional individual choices. Yet, econometric partial adjustment models perform well, though imperfectly, at the aggregate level. Analyzing the classic employment adjustment problem, we show why discrete and occasional...

We contrast the Farmer and Guo sunspots model with the Hansen indivisible labor real business cycle model using impulse responses, growth spectra, and Watson's measure of fit for calibrated models. We find that the sunspots model is better able to reproduce the typical spectral shape of growth...