A 'two-stage growth' discounted cash flow (DCF) model is built to test whether changes in the underlying market fundamentals help to explain movements in stock prices. Empirical results on two samples of US and EU stocks show that the 'fundamental' earning price ratio (E/P) explains a...

In this paper we consider a market driven by a Wiener process where there is an insider and a regular trader. The insider has privileged information which has been deformed by an independent noise vanishing as the revelation time approaches. At this time, the information of every trader is the...

This paper considers share repurchases as the way long-term shareholders preserve their ability to use corporate information for speculative purposes when insider trading regulation is enforced. This use of corporate information increases the adverse selection losses of short-term shareholders....

This paper studies how the trade size and the historical sequence of trades affect bid-ask spreads, investors’ trading strategies, and the market maker’s learning process in a multi-period economy. First, we show that there is a nonzero cut-off size below which informed traders never buy or...

Despite the insider trading laws and Sarbanes-Oxley, Jesse Fried argues that executives still make billions of dollars of insider trading profits each year by timing their stock sales: requiring advance disclosure of such trades would go far to address this problem.

We combine methods for portfolio optimization in incomplete markets which are due to Karatzas et al. [6] with methods proposed by Nualart based on Malliavin Calculus to model insider trading within a stochastic volatility model. We compute the optimal portfolio within a certain set of insider...

We set up a model to study the voluntary disclosure of information by insiders of publicly traded companies. We consider a trading framework as in [14] with many assets and one insider per asset. There is one discretionary liquidity trader who can allocate his trades across the different assets...

This paper argues, both theoretically and empirically, that sometimes no securities law may be better than a good securities law that is not enforced. The first part of the paper formalizes the sufficient conditions under which this happens for any law. The second part of the paper shows that a...

In this study we examine the consistency between lobbying choices and insider trading behaviour by managers before and after the issuance of the 1974 FASB Exposure Draft on R&D. The results, though not very strong, indicate that managers compensated by accounting-based schemes lobbied against...