Consumers often purchase more than one differentiated product, assembling a portfolio, which might potentially affect substitution patterns of demand and, as a consequence, oligopolistic firms' pricing strategies. To study such consumers' portfolio considerations, this paper develops and...

Conventional hedonic analysis measures willingness to pay for attributes on the basis of marginal fixed costs. We argue that in many cases variable costs are also affected by these attributes and that this should be taken into account. We develop a simple model to show that the marginal...

In a competitive marketplace, the effectiveness of any element of the marketing mix is determined not only by its absolute value, but its relative value with respect to the competition. For example, the effectiveness of a price cut in increasing demand is critically related to competitors'...

We examine used car dealers' roles as intermediaries. We present empirical evidence supporting that cars sold by dealers have higher quality: (1) dealer transaction prices are higher than private market prices and this dealer premium increases in the age of the car as a ratio and is hump-shaped...

Das Coronavirus hat viele alte Gesetzmäßigkeiten in Frage gestellt. Das gilt auch für die Vermessung ökonomischer Aktivitäten. Verfahren aus der Hochzeit der Industrialisierung werden dem strukturellen Wandel zunächst zu einer Dienstleistungsgesellschaft, später zu einer Digitalwirtschaft...