Showing 1 - 10 of 236
Regulators around the world are discussing, or taking action to limit, self-preferencing by large platforms. This paper explores Amazon's search rankings of its own products as the European Union's Digital Markets Act (DMA) was coming into effect. Using data on over 8 million Amazon search...
Persistent link: https://www.econbiz.de/10014528339
Regulators are responding to growing platform power with curbs on platforms' potentially biased exercise of power, creating urgent needs for both a workable definition of platform bias and ways to detect and measure it. We develop a simple equilibrium framework in which consumers choose among...
Persistent link: https://www.econbiz.de/10014421191
Nearly half of all transactions in the $5 trillion market for manufactured goods in the United States were intermediated by wholesalers in 2012, up from 32 percent in 1992. Seventy percent of this increase is due to the growth of "superstar" firms - the largest one percent of wholesalers....
Persistent link: https://www.econbiz.de/10014468236
Previous research highlights persistent differences in national brand market shares across regions, driven by geographic consumer preferences and early entry advantages (Bronnenberg et al. 2007, 2009). This study investigates the extent to which long-term vertical contracts can explain the...
Persistent link: https://www.econbiz.de/10015421856
We examine merging firms' additions and removals of products for a sample of 66 mergers across a wide variety of consumer packaged goods markets. We find that mergers lead to a net reduction in the number of products offered by merging firms. Merging firms tend to both drop and add products at...
Persistent link: https://www.econbiz.de/10014287330
Using rich data on hourly physical productivity and thousands of ownership changes from US power plants, we study the effects of acquisitions on efficiency and underlying mechanisms. We find a 2% average increase in efficiency for acquired plants, beginning five months after acquisitions....
Persistent link: https://www.econbiz.de/10014635690
Mobile app commissions paid by app developers to a monopolist device maker/app store operator are examined. Three results are demonstrated. First, unregulated app commissions are set at a level that maximises consumer surplus. Second, eliminating app commissions will lead to higher device...
Persistent link: https://www.econbiz.de/10014528379
This paper uses barcode-level price data for 16 advanced and emerging market countries over the period 2005-2022 to investigate the role of individual firms and product categories in aggregate inflation. We decompose inflation into the component due to macroeconomic shocks and the granular...
Persistent link: https://www.econbiz.de/10015195050
Concentration is a single summary statistic driven by two opposing forces: the number of firms in a market and the evenness of their market shares. This paper introduces a generalized measure of concentration that allows researchers to vary the relative importance of each force. Using the...
Persistent link: https://www.econbiz.de/10014468257
This paper surveys the relevant existing literature that can help researchers and policy makers understand the drivers of competition in markets that constitute the provision of artificial intelligence products. The focus is on three broad markets: training data, input data, and AI predictions....
Persistent link: https://www.econbiz.de/10014512124