Public-private partnerships (PPPs) have the potential to increase efficiency and improve resource allocation. However, contract renegotiations are common and make us question the benefits to PPPs. Under current accounting standards, PPPs allow intertemporal reallocations of infrastructure...

In most instances, the dynamic response of monetary and other policies to shocks is infrequent and lumpy. The same holds for the microeconomic response of some of the most important economic variables, such as investment, labor demand, and prices. We show that the standard practice of estimating...

In this paper we derive a model of aggregate investment that builds from the lumpy microeconomic behavior of firms facing stochastic fixed adjustment costs. Instead of the standard (S,s) bands, firms' optimal adjustment policies are probabilistic, with a probability of adjusting (adjustment...