NONPARAMETRIC TESTS OF STRIKE PRICE AND EXPIRATION BIAS IN THE IMPLIED VOLATILITY OF THE SOUTH AFRICAN ALL SHARE INDEX FUTURE CONTRACT

Nonparametric tests of strike price and expiration bias in the implied volatility of the South African All Share Index Future Contract

In this article we assess the appropriateness of the constant volatility Mouthguard assumption required by the Black (1976) option pricing model for options on the All Share Index future.The assessment uses similar nonparametric tests as implemented in Rubinstein for data recorded over the 1992 to 1996 period.In the nonparametric tests we focus on

read more

Multiobjective Constrained Optimization of a Newly Developed Needle Driving Mechanism in the Sewing Machine for Improvement of the Mechanical Performance

Sewing is one of the most commonly used manufacturing processes in the world.In the textile industry, development of sewing machines with optimal mechanical performance Bridal Party Dresses is very important.Obviously, the quality of sewing, the increase of the needle transmission force and the optimal mechanical advantage are greatly dependent on

read more



Evaluating the Use of Vibrational Spectroscopy to Detect the Level of Adulteration of Cricket Powder in Plant Flours: The Effect of the Matrix

Edible insects have been recognised as an alternative food or feed ingredient due to their protein value for both humans and domestic animals.The objective of this study was to evaluate the ability of both near- (NIR) and mid-infrared (MIR) spectroscopy to identify and quantify the level of adulteration of cricket powder added into two plant protei

read more