The authors empirically explore the revenue impact of marketing-mix variables and their interactions. The findings include the following: pharmaceutical direct-to-consumer advertising and detailing (sales force) affect demand synergistically, detailing raises price elasticity, and detailing has a higher return on investment than does direct-toconsumer advertising. The authors also discuss other implications and provide future research directions.

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In this paper we study how performance requirements may improve the working of a distribution channel when the retailer is better informed about demand conditions than the manufacturer. Performance requirements means that the manufacturer and retailer agree to (1) have the manufacturer set requirements on retail price or service or both, and (2) jointly invest in the information systems required to monitor the retailer's compliance with the requirements. We show that performance requirements on price and service will improve channel performance. But if requirements cannot be set on both performance dimensions, the choice among the remaining options is not straightforward. Price requirements may be worse than no requirements, and service requirements no better. The central problem with setting requirements on only one dimension is that the retailer then behaves suboptimally on the other. Between the two partial options, service requirements are better than price requirements in aligning the interests of the manufacturer and the retailer, whereas price requirements are better at inducing the retailer to reveal his demand.pay-for-performance, distribution channels

The authors investigate pricing strategies based on yield management systems (YMS), such as early discounting, overbooking, and limiting early sales, for capacity-constrained services. They find that VMS work best when priceinsensitive customers prefer to buy later than price-sensitive consumers. The authors also identify other conditions favoring the use of VMS.