introduce a model of the market for advertising on news media outlets whereby news outlets are modeled as competing two … equilibrium outcomes in the advertising market. One consequence is that multi-homing on the part of advertisers is heterogeneous …

liberalization. Firm productivity in a given product is modeled as a combination of firm-level "ability" and firm …-level ability raises a firm's productivity across all products, which induces a positive correlation between a firm's intensive … (output per product) and extensive (number of products) margins. Trade liberalization fosters productivity growth within and …

-equilibrium model with monopolistic competition, drawing a distinction between productivity gains that enhance manufacturing efficiency …This paper analyzes the welfare implications of international spillovers related to productivity gains, changes in … market size, or government spending. We introduce trade costs and endogenous varieties in a two-country general …

increased competition from demand shocks in export markets - and the induced product mix reallocations - induce productivity … best performing products; and also extend the range of products sold to that market. We develop a theoretical model of … changes within the firm. We then empirically test for this connection between the demand shocks and the productivity of multi …

expectations of future profits which, in turn, depend on the nature of competition within the market. In this paper we estimate a …Market structure is determined by the entry and exit decisions of individual producers. These decisions are driven by … dynamic, structural model of entry and exit in an oligopolistic industry and use it to quantify the determinants of market …

show that sectors characterized by a higher degree of competition (more substitutable products and a lower concentration of … evidence. In an oligopolistic market, firms can benefit from an increase in their product-specific protection measure, if they … can raise prices and profits. They find it less profitable to do so in a competitive market where attempts to raise prices …

between them. The village market and the village matchmaker were 2SPs; eBay and Match.com are more recent examples. Other … provides an introduction to the economics of 2SPs and its application to several competition policy issues …

establish a relational contract that softens price competition to either strengthen the inefficient firm in a war of attrition … demonstrated that performance differences are likely to be associated with stability in the identity of firms in the market …

. Economists have developed a large number of plausible market mechanisms for the efficient provision of public goods, and the …

We examine the impact of Chinese import competition on patenting, IT, R&D and TFP using a panel of up to half a million …-specific quotas following China's entry into the World Trade Organization. Chinese import competition had two effects: first, it led … account for around 15% of European technology upgrading between 2000-2007. Rising Chinese import competition also led to falls …