Investment of U.S. firms responds asymmetrically to Tobin's Q: Investment of established firms -- `intensive' investment -- reacts negatively to Q whereas investment of new firms -- `extensive' investment -- responds positively and elastically to Q. This asymmetry, we argue, reflects a...

The main implications of the Q-theory of mergers are tested for United States and seven continental European countries in both the domestic and cross-border cases. I find that European firms, much like those in the United States, tend to use mergers and acquisitions to make large increases in...

"Growth of technological variety offers more scope for the division of labor. And when a division of labor requires some specific training, the technological specificity of human capital grows and, with it, probably the firm specificity of that capital. We build a simple model that captures this...