This paper studies competition in price-quality menus within the context of a horizontally differentiated duopoly, where each firm also operates in a local, monopolistic market. It is assumed that the consumer’s unobservable valuation for quality is determined by the nature of his preferences over brand product characteristics. I show that if competition between the two firms is sufficiently fi...

The goal of this paper is to identify key issues concerning the nature of competition in health care markets and its impacts on quality and social welfare and to identify pertinent findings from the theoretical and empirical literature on this topic. The theoretical literature in economics on competition and quality, the theoretical literature in health economics on this topic, and the empirica...

this study investigates relation between accruals quality and auditor selection in the listed firms of tehran stock exchange (tse) during a five-year period from 2007 to 2011.  using correlation method and logistic regression technique, the results of this study indicate that client size, management change and accruals quality impact on selection of the big audit firms.  the results of this res...

There is intense competition between managed care organizations (MCOs) in the USA based on cost and benefit coverage, but scant attention to differences in quality. Consumer preference for 'choice' has stimulated the growth of overlapping networks of providers across competing MCOs. These networks have tended to perform less well on the quality indicators in report cards than staff model MCOs. ...

Payer-driven competition has been widely advocated as a means of increasing efficiency in health care markets. The 1990s reforms to the UK health service followed this path. We examine whether competition led to better outcomes for patients, as measured by death rates after treatment following heart attacks. We exploit differences in competition over time and space to identify the impact of com...

In this note we show that the results developed in Singh and Vives (1984) are sensitive to the duopoly assumption (Rand Journal of Economics 15, 546-554). If there are more than two firms, prices may be higher under price competition than under quantity competition. This will be the case if quality differences are large and goods are complements. If goods are substitutes, high-quality firms may...

Competition between herbivorous insects often occurs as a trait mediated indirect effect mediated by inducible changes in plant quality rather than a direct effect mediated by plant biomass. While plant-mediated competition likely influences many herbivores, progress linking studies of plant-mediated competition in terrestrial phytophagous insects to longerterm consequences for herbivore commun...