De l’évaluation des stock options en « juste valeur » : apport de l’approche comportementale
Our research focuses on the relevance of the descriptive framework to the representation of decisional behavior aspects in financial instruments fair value models. This issue is analyzed in the case of stock options through three essays: The first paper gives rise to new behavioral factors affecting exercise decision of stock option holders. These findings underscore the importance of considering behavioral factors in the stock options fair value models. In the second essay we examine stock options subjective valuation and the implied incentive effects to a cumulative prospect theory (CPT) representative employee. Our model predicts that the employee may overestimate the value of his options in-excess of their risk-neutral value. In addition, the model incentive effects predictions are consistent with actual compensation practices. The last essay relies on the CPT framework to provide an alternative approach for the valuation of standard employee stock options and for the analysis of exercise behavior patterns. Our empirical analysis proved that the CPT model is the best performing among many competing models in predicting actual exercise patterns.
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- Tatsuya Yonetani & Yuko Katsuo, 1998. "Fair value accounting and regulatory capital requirements," Economic Policy Review, Federal Reserve Bank of New York, issue Oct, pages 33-43.
- Danyang Xie, 2002.
"Power Risk Aversion Utility Functions,"
- Tversky, Amos & Kahneman, Daniel, 1992. "Advances in Prospect Theory: Cumulative Representation of Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 297-323, October.
- Yermack, David, 1997.
" Good Timing: CEO Stock Option Awards and Company News Announcements,"
Journal of Finance,
American Finance Association, vol. 52(2), pages 449-76, June.
- David Yermack, 1996. "Good Timing: CEO Stock Option Awards and Company News Announcements," New York University, Leonard N. Stern School Finance Department Working Paper Seires 96-41, New York University, Leonard N. Stern School of Business-.
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