The impacts of choice in public services are controversial. We exploit a reform in the English National Health Service to assess the impact of relaxing constraints on patient choice. We estimate a demand model to evaluate whether increased choice increased demand elasticity faced by hospitals...

Has the introduction of greater choice and competition in healthcare in England led to improved outcomes for patients? The authors assess changes in the quality of care that hospitals provided for cardiac surgery patients following the mid-2000s reforms.

This paper explores the impact of trade on growth when firms are heterogeneous. We find that greater openness produces anti-and pro-growth effects. The Melitz-model selection effects raises the expected cost of introducing a new variety and this tends to slow the rate of new-variety introduction...

Governments frequently intervene to support domestic industries, but a surprising amount of this support goes to ailing sectors. We explain this with a lobbying model that allows for entry and sunk costs. Specifically, policy is influenced by pressure groups that incur lobbying expenses to...

Formal analysis of the political economy of trade policy was substantially redirected by the appearance of Gene Grossman and Elhanan Helpman's 1994 paper, "Protection for Sale". Before that article a fairly wide range of approaches were favoured by various authors on various issues, but...

We exploit lottery wins to investigate the effects of exogenous changes to individuals' income on health care demand in the United Kingdom. This strategy allows us to estimate lottery income elasticities for a range of health care services that are publicly and privately provided. The results...

Smoking bans have been widely introduced in recent years in an effort to reduce non-smokers' exposure to tobacco smoke. Jérôme Adda and Francesca Cornaglia evaluate the effect of these restrictions - and of taxes on cigarettes - on the incidence of passive smoking and, in particular, their...

Firms' decisions about which goods to produce are often made at a more disaggregate level than the data observed by empirical researchers. When products differ according to production technique or the way in which they enter demand, this data aggregation problem introduces a bias into standard...

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...

We estimate a structural model of heterogeneous multiproduct firms to examine the sources of firm heterogeneity emphasized in the recent trade and macro literatures. Using Nielsen barcode data on prices and sales, we estimate elasticities of substitution within and between firms, and use the...