This paper compares three different models of efficiency measurement on the basis of multiple inputs and outputs. Various data envelopment models are compared with principle component analysis and with a naïve model that derives a single efficiency score for every unit by averaging all possible...

Gemeinschaftsmarketing für Agrarprodukte und Lebensmittel ist spätestens seit der Einführung des Absatzfondsgesetzes im Jahr 1969 das zentrale Instrument zur Absatzförderung in der Agrar- und Ernährungswirtschaft. Institutionalisiert in der Centralen Marketing-Gesellschaft der Deutschen...

We investigate a linear state differential oligopoly game with advertising, under either Cournot or Bertrand competition. We show that a unique saddlepoint equilibrium exists in both cases if the marginal cost of advertising is sufficiently low. Then, we prove that Bertrand competition entails...

Gemeinschaftsmarketing für Agrarprodukte und Lebensmittel ist spätestens seit der Ein-führung des Absatzfondsgesetzes im Jahr 1969 das zentrale Instrument zur Absatzförde-rung in der Agrar- und Ernährungswirtschaft. Institutionalisiert in der Centralen Marketing-Gesellschaft der Deutschen...

This paper is an attempt to provide evidence on two questions: Why do companies sponsor art events, and where exactly does the money go? We analyse data collected on the revenue structure of cultural institutions in Berlin and Hamburg. This data set not only tells us where the money goes, it...

We study effects of direct-to-consumer advertising (DTCA) in the prescription drug market. There are two pharmaceutical firms providing horizontally differentiated (branded) drugs. Patients differ in their susceptibility to the drugs. If DTCA is allowed, this can be employed to induce...

This paper presents a model of media competition with free entry when media operators are financed both from advertisers and customers. The relation between advertising receipts and sales receipts, which are both complementary and antagonist, is different if media operators impose a price or a...

Traditional models of consumer choice assume consumers are aware of all products for sale. This assumption is questionable, especially when applied to markets characterized by a high degree of change, such as the personal computer (PC) industry. I present an empirical discrete-choice model of...