We study a model where some investors (“hedgers”) are bad at information processing, while others (“speculators”) have superior information-processing ability and trade purely to exploit it. The disclosure of financial information induces a trade externality: if speculators refrain from...

The extent to which business groups ever existed in the United States and, if they did exist, the reasons for their disappearance are poorly understood. In this paper we use hitherto unexplored historical sources to construct a comprehensive data set to address this issue. We find that (1)...

We survey the literature analysing the price formation and trading process, and the consequences of market organization for price discovery and welfare. We develop a united perspective on theoretical, empirical and experimental approaches. We discuss the evidence on transaction costs and the...

We develop a model of price formation in a dealership market where monitoring of the information flow requires costly effort. The result is imperfect monitoring, which creates profit opportunities for speculators, who do not act as dealers but simply monitor the information flow and quote...

The creation of Europe’s ‘new’ stock markets represents a major experiment in market design with important implications for the ability to support innovative, fast-growing companies. We evaluate the success of these markets based on a large number of measures of firm performance and...

We consider the strategic timing of information releases in a dynamic disclosure model. Because investors don’t know whether or when the firm is informed, the firm will not necessarily disclose immediately. We show that bad market news can trigger the immediate release of information by firms....

We study the effect of earnings manipulation on incentives within the corporate hierarchy. When top management manipulates earnings, it must prevent information leakage from corporate insiders to the outside world. If an insider (e.g. a division manager) gains evidence about earnings...

We study the effect of earnings manipulation on incentives within the corporate hierarchy. When top management manipulates earnings, it must prevent information leakage from corporate insiders to the outside world. If an insider (e.g. a division manager) gains evidence about earnings...

Can we design statistical models to predict corporate earnings which either perform as well as, or even better than analysts? If we can, then we might consider automating the process, and notably apply it to small and international firms which typically have either sparse or no analyst coverage....

The U.S. system of security law was designed more than 70 years ago to regain investors’ trust after a major financial crisis. Today we face a similar problem. But while in the 1930s the prevailing perception was that investors had been defrauded by offerings of dubious quality securities, in...