Sam Peltzman

Sam Peltzman is the Ralph and Dorothy Keller Distinguished Service Professor Emeritus of Economics at the Booth School of Business, University of Chicago. He received his PhD in economics from the University of Chicago in 1965, and he has previously taught at the University of California, Los Angeles. He also served as senior staff economist for the President’s Council of Economic Advisers. He has been on the faculty of the University of Chicago’s School of Business since 1973.

The Durable Impact of Stigler’s Theory of Economic Regulation

George Stigler’s “The Theory of Economic Regulation” was an early application of public choice reasoning to a practical problem—the work of regulatory...

If One Monopoly Is Good for the Firm, Are Two Always Better? Aaron Director and the Tie-in Problem

When IBM patented a punch card processing machine, it had the power to influence both the market of machines and punch cards, but this is...

Standard Oil and Antitrust: the Effects of Aaron Director's Socratic Method

Aaron Director, who died 15 years ago, made important contributions to the analysis of business practices. None were ever published under his name. Professor...

George Stigler on Regulation: Lessons for Today

October 20 marks the 35th anniversary of George Stigler’s Nobel prize, the first of Booth School of Business’s grand total of eight Nobels. To...

Latest news

The Kroger-Albertsons Merger Threatens Smaller Upstream Suppliers

Much of the conversation of the proposed Kroger-Albertsons merger has focused on the risks to consumers. However, the merger also poses serious implications for the grocers’ upstream suppliers, particularly smaller regional firms.

Why Have Uninsured Depositors Become De Facto Insured?

Due to a change in how the FDIC resolves failed banks, uninsured deposits have become de facto insured. Not only is this dangerous for risk in the banking system, it is not what Congress intends the FDIC to do, writes Michael Ohlrogge.

Merger Law Reaches Acquirer Incentives and Private Equity Strategies

Steven C. Salop argues that Section 7 of the Clayton Act prohibits mergers in which the acquiring firm’s unilateral incentives and business strategy are likely to lessen market competition.

Tim Wu Responds to Letter by Former Agency Chief Economists

Former special assistant to the president for technology and competition policy Tim Wu responds to the November 27 letter signed by former chief economists at the Federal Trade Commission and Justice Department Antitrust Division calling for a separation of the legal and economic analysis in the draft Merger Guidelines.

Can the Public Moderate Social Media?

ProMarket student editor Surya Gowda reviews the arguments made by Paul Gowder in his new book, The Networked Leviathan: For Democratic Platforms.

Uninhibited Campaign Donations Risks Creating Oligarchy

In new research, Valentino Larcinese and Alberto Parmigiani find that the 1986 Reagan tax cuts led to greater campaign spending from wealthy individuals, who benefited the most from this policy. The authors argue that a very permissive system of political finance, combined with the erosion of tax progressivity, created the conditions for the mutual reinforcement of economic and political disparities. The result was an inequality spiral hardly compatible with democratic ideals.

Did the Meme Stock Revolution Actually Change Anything?

Many financial commentators thought that the surge of retail investors participating in the stock market, the most notable of whom boosted “meme stocks” like GameStop, would democratize corporate governance and improve prosocial firm behavior, including the promotion of environmental, social, and governance (ESG) goals. In new research, Dhruv Aggarwal, Albert H. Choi, and Yoon-Ho Alex Lee find evidence that the exact opposite took place.