Investigates the stock market valuation of the research anddevelopment (R&D) and intellectual property (IP) activities of quotedcompanies in the United Kingdom. Unlike previous studies, this analysisconsiders the extent to which the stock market's valuation of firm-levelinnovation varies across...

In many markets firms set posted prices which are potentially negotiable. We analyze theoptimal marketing mix of pricing and bargaining when price takers buy at posted prices butbargainers attempt to negotiate discounts. The optimal bargaining strategy involves the firmsoffering bargainers...

We present a general Cournot model in which each ¯rm may sell multiplequality-di®erentiated products. We use an upgrades approach, working not with theactual products, but instead with upgrades from one quality to the next. The prop-erties of single-product Cournot models carry over to the...