The sensitivity of business capital formation to its user cost plays a key role in the analysis of many economic issues. Although this elasticity has been the subject of an enormous number of studies, a consensus remains elusive. We develop an estimation strategy that filters panel data in an...

Recent research on aggregate fluctuations, coupled with ongoing work in industrial organization, has renewed interest in the existence, magnitude, and cyclical pattern of market power and the extent of increasing returns to scale across industries. By exploiting restrictions from dynamic theory...

The price sensitivity of business investment spending is a central element in economic analysis. A substantial response of capital spending to its user cost, which combines interest, tax, and depreciation rates with relative prices, is critical to evaluating the effectiveness of monetary policy,...

This study explores the impact of non-constant returns to scale and imperfectly competitive product markets on the empirical performance of the q-model of investment. We present an econometric specification linking the unobserved shadow price of capital to financial market data when...

Parameters of taste and technology are central to a wide variety of economic models and issues. This article proposes a simple method for estimating production function parameters from panel data, with a particular focus on the elasticity of substitution between capital and labor. Elasticity...

Market power exercised by firms has become central to macroeconomics. Recent theoretical work highlights the importance of the relation between market power and inflation. We examine this relation for individual firms in eleven U.S. industries. Our econometric framework exploits restrictions...