The academic literature generally concludes that the Black-Scholes model overstates the value of employee stock options (ESOs). In particular, because ESOs cannot be traded, employee risk aversion often elicits premature exercise. As a result, the ESO is less valuable than a traded option. An...

In this paper, we analyze the statistical and economic impact of earnings announcements on individual equity option prices. We develop no-arbitrage option pricing models in the presence of earnings announcements; we nonparametrically test for the importance of earnings announcements on option...

Previous studies of corporate stock repurchase programs found low efficiency (high execution cost), questionable performance (inconsistent profitability), idiosyncratic transaction reporting (monthly cost reports may not match actual monthly transactions), archaic shareholder accounting...

Prior studies show that option listing and subsequent trading improve a firm's information environment and that the price-earnings relation is influenced by characteristics of the information environment. Motivated by these research findings, we examine whether option trading is associated with...

This study seeks to determine whether earnings announcements pose non-diversifiable volatility risk that commands a risk premium. We find that investors anticipate some earnings announcements to convey news that increases market return volatility and pay a premium to hedge this non-diversifiable...

According to IFRS 9, an Entity shall assess - by performing a quantitative assessment - the relevance of the modification of the time value of money element, i.e. the modification of the interest that can be observed, e.g. in all the instruments whose underlying interest rate tenors are...

Dynamics of credit markets impact almost all participants in financial markets. Yet, despite rapidly growing international credit markets, we know little about the dynamics of global credit markets, as most studies focus on the US. Here, I propose a new distance-to-default model, empirically...

Statement of Financial Accounting Standards 123R suggests that lattice valuation models may improve the estimates of reported employee stock option values relative to the more commonly used Black-Scholes model. However, lattice model critics have expressed concerns that managers may use lattice...

We hypothesize that oil and gas producers' 10-K market risk disclosures, recently mandated by SEC Financial Reporting Release Number 48 (FRR No. 48), convey useful information to investors about commodity betas (defined as the sensitivity of firms' equity price changes to commodity price...

We investigate whether implied volatility comovements reflect the degree to which a firm’s private information is informative about future macroeconomic news. We compute IVC, the comovement of the implied volatilities between the firm and the aggregate market. IVC measures the extent to which...