Horizontal shareholding exists when significant shareholders have stock in horizontal competitors. (It is often imprecisely called "common shareholding," but that term can also apply when shareholders own stock in two noncompeting corporations. It differs from "cross-shareholding," which...

This Article shows that new economic proofs and empirical evidence provide powerful confirmation that, even when horizontal shareholders individually have minority stakes, horizontal shareholding in concentrated markets often has anticompetitive effects. The new economic proofs show that,...

The United States spends twice as much per person on pharmaceuticals as European countries, in large part because prices are much higher in the US. This fact has led policymakers to consider legislation for price controls. This paper assesses the effects of a US international reference pricing...

I estimate demand for auto insurance in the presence of two types of market frictions: search and switching costs. I develop an integrated utility-maximizing model in which consumers decide over which and how many companies to search and from which company to purchase. My modeling approach...

This paper evaluates the recent literature claiming that the US economy has generally become less competitive causing the US economy to perform poorly and that lax antitrust policy is one important reason for the decline in economic performance. Although there certainly are empirical facts...

The United States has state of the art technology and world renowned expertise in medical treatment, yet in terms of healthcare it shows a dramatically poor performance in relation to the other industrialized countries. This situation is surprising, since one would expect that a free market...

The United States has state of the art technology and world renowned expertise in medical treatment, yet in terms of healthcare it shows a dramatically poor performance in relation to the other industrialized countries. This situation is surprising, since one would expect that a free market...

This paper compares health care systems. It looks beyond normal academic, political, or journalistic rhetoric, by exactly sticking to facts, i.e. empirical data (in particular data provided by the WHO) and comprehensive case study analyses. The paper finds that a number of myths and common...

The Bureau of Labor Statistics' Prescription Drug Consumer Price Index (CPI-Rx) has been the focus of considerable controversy in recent years. The CPI-Rx limits its sampling frame to transactions in retail outpatient outlets, and excludes prescription pharmaceuticals dispensed in hospitals,...

We study cartels that operated in the US generic drug industry, leveraging quarterly Medicaid data from 2011-2018 and a difference-in-differences approach comparing the evolution of prices of allegedly collusive drugs with a group of competitive control drugs. Our analysis highlights (i) the...