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...

I analyze a dataset of news from the New York Times, from 1946 to 1997. Controlling for the incumbent President's activity across issues, I find that during the presidential campaign the New York Times gives more emphasis to topics that are owned by the Democratic party (civil rights, health...

During the past few decades a number of European countries lifted the regulations that restricted the opening hours of shops on Sunday. In this paper we examine the impact of Sunday trade deregulation on employment, expenditure, prices and market structure using a difference-in-difference...

This study introduces a theoretical framework for the economics of preventative healthcare. Mathematical models are used to explain how the price and utilization of prevention change depending on demand, as well as factors such as the price of a cure, the probability of illness, the efficacy of...

Studies of firm-level data have shown that there is a huge dispersion of productivity across firms even when industries are narrowly defined. So there is a significant opportunity for the least productive firms to catch up to the most productive. The formers’ convergence could therefore...

This paper examines the frequency, pervasiveness, and determinants of product switching by US manufacturing firms. We find that one-half of firms alter their mix of five-digit SIC products every five years, that product switching is correlated with both firm- and firm-product attributes, and...

This paper examines the frequency, pervasiveness and determinants of product switching among U.S. manufacturing firms. We find that two-thirds of firms alter their mix of five-digit SIC products every five years, that one-third of the increase in real U.S. manufacturing shipments between 1972...

A startling fact of firm level productivity analysis is the large and persistent differences in both labour productivity and total factor productivity (TFP) between firms in narrowly defined sectoral classes. The competitiveness of an industry is potentially an important factor explaining this...

Sunk costs for R&D are an important determinant of the level of innovation in the economy. In this paper I recover them using a Markov equilibrium framework. The contribution is twofold. First, a model of industry dynamics which accounts for selection into R&D, capital accumulation and...