Vassar Scholarship

Arbitrage pressures that could equalize closed-end fund share prices with fund portfolio values appear to be largely absent in an extensive data set. Observed fund behavior violates the static arbitrage bounds of Gemmill and Thomas (2002) and is inconsistent with...

We develop a model of bargaining and litigation in the context of patent licensing (or any contractual setting). Following Priest and Klein (1984) we developed a model that explicitly allows for (1) multiple parties (leading to asymmetry of stakes), (2)...

Previous papers find no relationship between interest rates and the discounts of US closed-end funds before 1985. This is taken as evidence against management fees being a cause of discounts because a negative relationship is expected: if interest rates rise...

In this note we investigate the infringement (entry) decision for a firm facing an incumbent patent holder with uncertain patent rights. The entrant risks a dispute by entering, resulting in either a settlement (licensing) or litigation and trial. Using the...

In June 2005, the Supreme Court made one of its least popular decisions in recent history. In Kelo v. New London, the Court missed a simple point: that local decision makers make local decisions.

This paper presents structural estimates of the probability of validity, and the probability of Type I and Type II errors by courts in patent litigation. Patents are modeled as uncertain property rights, and implications of the model are tested using...

There are numerous examples of assets with identical payout streams being priced differently. These violations of the law of one price result from two factors. First, investors have heterogeneous asset valuations so that if two groups of investors trade in...

Arbitrage positions that benefit from the reversion of closed-end fund discounts to rational levels show excess returns that increase in magnitude the more funds are mispriced. At the same time, fund trading volumes and bid-ask spreads more than double as...

The behavior of US closed-end funds is very different from that of the UK funds studied by Gemmill and Thomas (2002). There is no evidence that their discounts are constrained by arbitrage barriers, no evidence that higher expenses increase discounts...

This paper merges patent citation data with data on pharmaceutical patent expirations, generic entry, and pricing to explore the effects of observable patent characteristics on off-patent and on-patnet pharmaceutical pricing. Using a sample of drug patents facing generic entry in...

The reaction of closed-end fund share prices to changes in portfolio values is on average the same whether funds are trading at discounts or premia and whether the changes in portfolio values are positive or negative. If closed-end fund discounts...

The larger a closed-end fund's premium over its portfolio value, the more intensely it is sold short. However, the intensity of short selling affects neither the rate at which premia mean revert to fundamental values nor the rate of return...

The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation...

In this paper I present a real options model of patent litigation when patents are not perfectly enforceable. I consider both finite horizon and infinite horizon models. The theoretical results demonstrate that patent value depends not only on the underlying...

Using a sample of patents litigated between 1977 and 1997, I estimate stock market reactions to patent litigation decisions and to patent grants. I find that the resolution of uncertainty over validity and infringement is worth as much to the...

This paper argues that the degree to which a given industry's labor contracts are complete or incomplete is the major factor determining whether its workforce will be unionized. For instance, assembly line industries feature complete labor contracts because of the...