"In aggregate models, costs that penalise changes in investment--investment adjustment costs-- have been introduced to help account for a variety of business cycle and asset market phenomena. In this paper, we evaluate empirical evidence for these types of costs using US and UK industry data. We...

Firm-level investment paths are commonly characterised by periods of low or zero investment punctuated by large investment ‘spikes’. We document that such spikes are important for understanding firm and aggregate level investment in the UK. We show that annual variation in aggregate...

This paper incorporates time-to-build into the standard investment model with convex adjustment costs. The empirical Euler equation is estimated using a U.S. firm-level panel from Compustat. In spite of the introduction of time-to-build, the magnitude of the implied adjustment costs is...

Conventional RBC models have been heavily criticized for their inability to generate the estimated negative correlations of hours and productivity in response to technology shocks ('productivity-hours puzzle'). In this paper we show that by just enhancing the standard frame- work with investment...

This paper examines dynamic patterns of investment in Cameroon, Ghana, Kenya, Zambia and Zimbabwe, assessing the consistency of those patterns with different adjustment cost structures. Using survey data on manufactured firms, we document the importance of zero investment episodes and lumpy...