This paper examines the effect of using different option valuation models to calculatethe fair market value of Executive Stock Options (ESOs) granted to executivedirectors of UK firms. Our key objective is to demonstrate empirically that somecompanies will have greater incentive and benefit from...

We value UK executive stock options (ESOs) as American options that areawarded conditional on the probability of the holders achieving some performancecriteria. Unlike the standard Black and Scholes (BS) model, which is universally usedboth in the literature and practice, this provides a more...

We document accounting quality improvements following voluntary IFRS adoption.However, we find no evidence of such improvements subsequent to mandatory adoptionby firms that resist IFRS adoption. We exploit a unique setting in Germany where firmscould voluntarily adopt IFRS before mandatory...