The economic expansion of the late 1990s undoubtedly created many opportunities for business creation in Silicon Valley, but the opportunity cost of starting a business was also high during this period because of the exceptionally tight labor market. A new measure of entrepreneurship derived...

Following up on our initial comments at the Tunney Act proceeding of the proposed merger between Sprint and T-Mobile, we discuss DOJ's criticisms of these comments, explaining why these criticisms are baseless. Moreover, using evidence from the NY v. Deutsche Telecom trial, we provide new...

This paper examines the impact of asymmetric information on incumbent firms' propensity to engage in limit pricing when faced with threat of entry. I draw from information economics to argue that incumbents will use price to respond ex ante to entry in situations characterized by asymmetric...

As economists with significant experience in competition and regulatory matters, we offer comments on the remedies proposed by the Department of Justice to address the competitive effects flowing from the proposed merger of Sprint and T-Mobile, as recognized by the DOJ's Complaint. We find that...

How has the Internet affected newspaper content? We build a dataset that matches newspaper readability measures to Internet penetration at the county-year level from 2000-2008. We document a positive relationship between Internet penetration and newspaper readability. This result appears...

As economists with significant experience in competition, telecommunications, and regulatory matters, we have filed the attached brief in the case of State of New York v. Deutsche Telecom supporting the plaintiffs, who have sued to prevent the merger of T-Mobile and Sprint. We explain why the...

How do firms respond to entry in multi-sided markets? We address this question by studying the impact of Craigslist, a website providing classified-advertising services, on local US newspapers. We exploit temporal and geographical variation in Craigslist’s entry to show that newspapers with...