Price promotions are typically offered in groups on websites, mailings and circulars, but little is known about how promotional offers in near proximity affect each other. Across two large-scale field experiments (N=66,184) conducted on a multi-brand coupon website, we find that when lead...

Firms are increasingly using technology to enable targeted, or "personalized" pricing strategies. In settings where prices are transparent to all consumers, however, there is the potential that inter-personal price differences will be perceived as inherently unfair. In response, firms may...

Switching costs are generally regarded as anti-competitive as firms can raise prices to "locked-in" consumers, at least up to the cost of switching to a lower-priced alternative. However, there is some evidence, both theoretical and empirical, that tends to show the opposite. Namely, suppliers,...

We derive equilibrium incentives to use comparative advertising that pushes up own brand perception and pulls down the brand image of targeted rivals. Data on content and spending for all TV advertisements in OTC analgesics enable us to construct matrices of dollar rival targeting and estimate...

Using minute-by-minute TV advertising data covering some 300 firms, 327,000 ads, and $20 billion in ad spending, we study the real-time effects of TV advertising on investors' searches for online financial information and subsequent trading activity. Our identification strategy exploits the fact...