In the early twentieth century, education legislation was often passed based on arguments that new laws were needed to force immigrants to learn English and "Americanize." We provide the first estimates of the effect of statutes requiring English as the language of instruction and compulsory...

An important criticism of race-based higher education admission preferences is that they may hurt minority students who attend more selective schools than they would in the absence of such preferences. We categorize the non-experimental research designs available for the study of so-called...

The Supreme Court has held repeatedly that race-based preferences in public university admissions are constitutional. But debates over the wisdom of affirmative action continue. Opponents of these policies argue that preferences are detrimental to minority students -- that by placing these...

How can we allow patent examiners to effectively distinguish between patentable and unpatentable inventions, without slowing the process to a crawl or wasting a bunch of money? This essay reviews the recent literature and considers a number of proposals and their limitations. It concludes that...

We analyze the patent filing strategies of foreign pharmaceutical companies in Chile distinguishing between “primary” (active ingredient) and “secondary” patents (patents on modified compounds, formulations, dosages, particular medical uses etc.). There is prior evidence that secondary...

Parties often regulate their relationships through “continuing” contracts that are neither long-term nor short-term but usually roll over. We study the trade-off between long-term, short-term, and continuing contracts in a two period model where gains from trade exist in the first period,...

We investigate entry in a dynastic entrepreneurship (overlapping generations) environment created by employee spinoffs. Without finance constraints, enforcement of non-compete agreements unambiguously improves social welfare outcomes, and even increases the rate of spinoffs from original firms....

Why are contracts incomplete? Transaction costs and bounded rationality cannot be a total explanation since states of the world are often describable, foreseeable, and yet are not mentioned in a contract. Asymmetric information theories also have limitations. We offer an explanation based on...

Using data from SEC filings, I show that the typical bank loan is renegotiated five times, or every nine months. The pricing, maturity, amount, and covenants are all significantly modified during each renegotiation, whose timing is governed by the financial health of the contracting parties and...