We investigate the effectiveness of several well-known parametric and non-parametric event study test statistics with security price data from the major Asia-Pacific security markets. Extensive Monte Carlo simulation experiments with actual daily security returns data reveal that the parametric...

Hallerbach (2004) derives an approximation formula to compute a Black-Scholes implied volatility. This formula is equivalent to equation (7) in Corrado and Miller (1996a), with the substitution of a geometric average of stock and strike prices in place of an arithmetic average. Ceteris paribus...

We examine the forecast quality of Chicago Board Options Exchange (CBOE) implied volatility indexes based on the Standard and Poor's 100 and Nasdaq 100 stock indexes. We find that the forecast quality of CBOE implied volatilities for the Samp;P 100 (VIX) has significantly improved in recent...

A hidden martingale restriction is developed for option pricing models based on Gram-Charlier expansions of the normal density function. The restriction is hidden behind a reduction in parameter space for the Gram-Charlier expansion coefficients. The resulting restriction is invisible in the...

The purpose of this paper is to develop a new non-parametric method to price options based on normalized Multipoint Padeacute; Approximants. Following the seminal paper of Padeacute; (1892), we propose to approximate the risk-neutral distribution by a rational function of polynomials that can...

Geared Equity Investments (GEI) are an over-the-counter product offered by Macquarie Bank, Ltd. to high-income investors in Australia and New Zealand as a managed-risk investment in local shares with a significant tax-shield benefit. Upon issuance, a geared equity contract has three...

The generalized lambda distribution is proposed as a useful model for security price distributions. Originally used to generate random variables with varied skewness and kurtosis values in Monte Carlo simulations, proposed financial applications include estimation of state price densities from...

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...