segmentation) shaped the underlying incen- tives for innovation in the PC industry during the mid to late 1980s …

mix much akin to the theory of optimal portfolio composition. It is the job of a firm's marketing department to put …

Marketing and distribution expenses are responsible for about a third of the cost of active management in the mutual … fund industry. We develop and estimate a structural model of mutual fund marketing with learning about unobserved skill and … costly investor search. Our estimates suggest that marketing is nearly as important as performance and fees for determining …

I develop a new theory of marketing costs and introduce it into a model of trade with product differentiation and firm …

Firms spend substantial resources on marketing and selling. Interpreting this as evidence of frictions in product …

We model early expectations about the value and technological importance ('quality') of a patented innovation as a …

relating to patenting, robust conclusions regarding the empirical consequences for technological innovation of changes in …

fertility of an innovation in generating more innovations cannot be observed. The menu of patent scope can be implemented with …