Using a dynamic extension of Regret Theory, we test how the regret induced by not selling a stock when the maximum price in an investment episode is attained shapes the propensity to sell a stock. We use a large discount brokerage dataset containing US households’ trading records between 1991...

We propose an extension to the concept of the disposition effect by allowing the use of alternative reference points. While the traditional definition is based on classifying stocks as winners and losers solely based on the purchase price, we incorporate stock prices closer to sell date into the...

We estimate the disposition effect for active traders in a large discount brokerage dataset containing US households’ trading records between 1991 and 1996. We apply a wide framing perspective, focusing on portfolios rather than individual stocks. We find that the disposition effect varies...

We study Cautious Stochastic Choice (CSC) agents facing optimal timing decisions in a dynamic setting. In an expected utility setting, the optimal strategy is always a threshold strategy - to stop/sell the first time the price process exits an interval. In contrast, we show that in the CSC...

More than half of S&P 500 CEOs receive options annually, however extant valuation models have not accounted for portfolio considerations. We show the inability of executives to diversify means portfolio effects matter: exercise thresholds and shareholder costs are lower than for stand-alone...

We consider the optimal exercise of a portfolio of American call options in an incomplete market. Options are written on a single underlying asset but may have different characteristics of strikes, maturities and vesting dates.Our motivation is to model the decision faced by an employee who is...

Empirical evidence shows that backdating of executive stock option grants was prevalent, particularly at firms with highly volatile stock prices. Executives who have the opportunity to backdate should take this into account in their valuation. We quantify the value to a risk averse executive of...