In recent years, there has been growing concern that a trend has emerged in which markets around the world are becoming more concentrated and less competitive. This is sometimes attributed to the increasingly digital and globalized nature of many markets and the firms that operate within them....

This study investigates the relationship between profitability and market power in the banking sector using data from the financial reports of the banks that operated in Serbia and Montenegro, covering the period from the first quarter of 2010 to the last quarter of 2019. In order to investigate...

As technology and interconnectivity have continued to flourish, so too has an important and complex form of enterprise: the platform. Services like Uber, Google Search, Hulu, and American Express cater to distinct but deeply-interdependent “sides” of customers that derive value or revenues...

Central banks often use certain concentration indices in their official reports to determine the degree of intensity of competition, of which the most common are the concentration ratio and the Herfindahl-Hirschman index. It is important to emphasize that when calculating the value of these...

This paper sets out the basic economics of network effects and two-sided or multi-sided markets as relevant to antitrust and regulation. Network effects, and the related concept of two- (or multi-) sided markets, are playing an increasing role in antitrust/competition law in the communications...

We study how the structure of the local banking market characterized by bank specialization and bank concentration affects credit and labor market responses to an import shock to local economies. We find that during the surge in U.S. imports from China from 1998 to 2006, small business loans...

Firms use both innovation and advertising to increase their profits, markups, and market shares. While they serve the same purpose from the firms' perspective, their broader implications vary substantially. In this paper, we study the interaction between these two intangible inputs and analyze...

In this paper we analyze the structure of contest equilibria with a variable number of individuals. First we analyze a situation where the total prize depends on the number of agents and where every single agent faces opportunity costs of investing in the contest. Second we analyze a situation...

In this paper we analyze the structure of contest equilibria with a variable number of individuals. First we analyze a situation where the total prize depends on the number of agents and where every single agent faces opportunity costs of investing in the contest. Second we analyze a situation...

This paper analyses the impact of common ownership on markups and innovation and adds to the discussion of the recently observed patterns of a long term rise in market power. We shed light on the inconclusiveness of results regarding the effects of common ownership on markups in the existing...