This paper extends the Hall-Roeger methodology in order to investigate the market structure and to measure the degree of market power in the Greek manufacturing sector over the period 1984-2007 as a whole and by subsector at the two-digit SIC level. The present paper also estimates the net and...

We investigate the welfare effect of union activity in a relatively new oligopoly model, the Cournot-Bertrand model, where one firm competes in output (a la Cournot) and the other firm competes in price (a la Bertrand). The Nash equilibrium prices, outputs, and profits are quite diverse in this...

In the context of supply function competition with private information, we test in the laboratory whether - as predicted in Bayesian equilibrium - costs that are positively correlated lead to steeper supply functions and less competitive outcomes than do uncorrelated costs. We find that the...

We consider the price and welfare effects of competition in targeted product design, in the context of the Salop circle model. Changes in product design lead to demand rotations that set the stage for our analysis. With an exogenous number of firms, we show that the degree of targeted product...

Online review aggregators (e.g., booking dot com or ClubKviar) provide detailed information about experience goods, such as restaurants and hotels. This study fosters the understanding of how such aggregators modify competition, profits and welfare. Using a spokes model of horizontal...

The dominance of English language content on the Internet raises a question of how consumer bilingualism in a given country affects the amount of home language content and the country's welfare. We address this question by studying two-sided market competition between a foreign and a domestic...

This paper investigates the strategic effect of bundling when a multi-product firm producing two complements faces competition in both markets. I consider a demand structure where both Cournot and Bertrand competition can be evaluated. Bundling is completely ineffective when firms compete in...

This paper studies banks' competitive behavior on the deposit side of the Italian retail banking industry. We use a structural model to estimate demand for deposit services and test several supply models. We find that both the competitive, differentiated product Bertrand and the perfectly...

We analyze duopoly Bertrand competition under network effects. We consider both incompatible and compatible products. Our main result is that network effects create a fundamental conflict between the maximization of social welfare and consumer surplus whenever products are incompatible. While...

I develop a model of rent seeking with informational foundations and an arbitrary number of rent seekers, and I compare the results with Tullock's (1980) classic model where the influence activities are "black-boxed." Given the microfoundations, the welfare consequences of rent seeking can be...