This paper examines how stock prices are affected by research and development activities for Danish firms for the period, 1989 to 2002. Both through analysis of portfolios and regression analysis, the role of R&D assets is considered along with a number of other fundamental factors, such as size, the book to market ratio, leverage and the CAPM beta. There is at best a weak indication that R&D i...

This paper discusses statistical inference on the second-order stochastic dominance (SSD) efficiency of a given portfolio relative to all portfolios formed from a set of assets. We derive the asymptotic sampling distribution of the Post test statistic for SSD efficiency. Unfortunately, a test procedure based on this distribution involves low power in small samples. Bootstrapping is a more power...

This paper studies the role of strategy and the order book market mechanism in price dynamics and the order flow behaviour. To this end we analyse a zero-intelligence agent model of a dynamic limit order market. Stylised facts of limit order markets are shown to be influenced and, in some cases, governed by the market mechanism rather than strategic interaction. Positive correlation in order ty...

The underpricing of initial public offerings is a well-documented fact of empirical equity market research. Theories explain this underpricing with market imperfections. We study three empirically relevant IPO mechanisms under almost perfect market conditions in the laboratory: a stylized book building approach, a closed book auction, and an open book auction. We report underpricing in each of ...

We study a stock dealer’s strategy for submitting bid and ask quotes in a limit order book. The agent faces an inventory risk due to the diffusive nature of the stock’s mid-price and a transactions risk due to a Poisson arrival of market buy and sell orders. After setting up the agent’s problem in a maximal expected utility framework, we derive the solution in a two step procedure. First, the d...

The LTCI market is evolving, and only a small percentage of the potential market has been penetrated. According to the 2000 Insurance Fact Book, published by the American Council of Life Insurers, less than 10 percent of the U.S. population over age 65 has purchased private LTCI. The increasing need for this product improves the prospects for additional tax relief for LTCI purchases, further en...

BACKGROUND Concerns about the high cost of orphan drugs has led to questions being asked about the generosity of the incentives for development, and associated company profits. METHODS We conducted a retrospective, propensity score matched study of publicly-listed orphan companies. Cases were defined as holders of orphan drug market authorisation in Europe or the USA between 2000-12. Control ...