This paper presents a game theoretic analysis of the generalized second-price auction that the company Overture operated in 2004 to sell sponsored search listings on search engines. We construct a model that embodies few prior assumptions about parameters, and we present results that indicate...

This article introduces the Emergency Purchasing Situation (EPS) as a distinct buying context. EPSs stem from an unexpected event (unanticipated need or timing of a need), as well as high product importance, which are associated with a short time frame for consumer decision-making. Our...

Sampling poses an interesting problem in markets with experience goods. Free samples reveal product quality and help consumers to make informed purchase decisions (promotional effect). However, sampling may also induce consumers to substitute purchases with free consumption (displacement...

In this paper we consider a two-stage duopoly game where firms first decide whether to invest in advertising and then compete in prices. Advertising has two effects: a market enlargement for both firms and a predatory gain for the investing firm only. Both symmetric and asymmetric equilibria may...

In a world where rational individuals may hold different prior beliefs, a sender can influence the behavior of a receiver by controlling the informativeness of a signal. We characterize the set of distributions of posterior beliefs that can be induced by a signal, and provide necessary and...

Dual system and dual process views of the human mind have contrasted automatic, fast, and non-conscious with controlled, slow, and conscious thinking. This paper integrates duality models from the perspective of consumer psychology by identifying three relevant theoretical strands: Persuasion...

What makes futures hedge funds fail? The common ingredient is over betting and not being diversified in some bad scenarios that can lead to disaster. Once troubles arise, it is difficult to take the necessary actions that eliminate the problem. Moreover, many hedge fund operators tend not to...

This paper examines the concept of systemic risk and provides an intuitive account of the economic thought on systems and the development of the notion of systemic risk. It is illustrated by putting the ideas of system, systemic risk and endogenous risk in a historial perspective.

In this paper we use insights from organizational economics and financial regulation to studythe optimal architecture of supervision. We suggest that the new architecture should revolvearound the following principles: (i) banking, securities and insurance supervision should befurther integrated;...

The paper investigates the relationship between underground activities and financial deepening. The access to external finance requires entrepreneurs to disclose credible information through formal documentation. This requirement may be impossible to oblige to for many informal producers who...