In this paper we conduct two proper tests of overconfidence. We reject the hypothesis "the data cannot be generated by a rational model" in both experiments.

Competition Authorities are introducing new informational remedies to help consumers search and switch more actively. Using a specially commissioned data set, and unique direct estimates of the gains, search and switching time which consumers anticipate, we examine the determinants of consumer...

Firms often offer menus of two-part tariffs to price discriminate among consumers with heterogeneous preferences. In this paper we study the effectiveness of this screening mechanism when consumers are uncertain about the quality of the good and resolve this uncertainty through consumption...

A classic argument in economics is that experience in the market place will eliminate mistakes and cognitive biases. Internet auctions are a popular market were some bidders gather extensive experience. In a unique data set from a Scandinavian auction site I question if and what bidders learn....

Many studies have shown that people display an apparent overconfidence. In particular, it is common for a majority of people to describe themselves as better-than-average. The literature takes for granted that this better-than-average is problematic. We argue, however, that, even accepting these...

Many studies have shown that people display an apparent overconfidence. In particular, it is common for a majority of people to describe themselves as better than average. The literature takes for granted that this better-than-average effect is problematic. We argue, however, that, even...

Many studies have shown that people display an apparent overconfidence. In particular, it is common for a majority of people to describe themselves as better-than-average. The literature takes for granted that this better-than-average effect is problematic. We argue, however, that, even...

The objective of this paper is to propose a multidisciplinary approach for the analysis of demand and innovation. It combines insights from studies on technology diffusion, evolutionary economics and cognitive psychology to argue that consumption and demand are learning processes driven by...

This paper investigates whether aggregate consumer learning together with consumer heterogeneity in price sensitivity could explain why (i) there is a slow diffusion of generic drugs into the market, and (ii) brand-name originators keep increasing their prices over time even after the number of...

Using nationally representative data on consumption, we show that Blacks and Hispanics devote larger shares of their expenditure bundles to visible goods (clothing, jewelry, and cars) than do comparable Whites. We demonstrate that these differences exist among virtually all sub-populations, that...