For the valuation of American put options exact pricing formulas haven't as yet been derived We therefore determine analytical approximations for pricing such options by introducing the Generalized Ant Programming (GAP) approach applicable to all problems in which the search space of feasible solutions consists of computer programs. GAP is a new method inspired by Genetic Programming as well as...

Due to the mispricing of options, no-arbitrage condition put-call parity (PCP) violations lead to inefficiency in the currency options market. Through transaction costs, the effects of these violations are reduced to negligible levels, indicating that PCP is not a sufficient condition for an options market efficiency test. Thus, this study developed a transaction cost-adjusted put-call parity (...

In this paper, we derive an equilibrium in which some investors buy call/put options on the market portfolio while others sell them. Since investors are assumed to have similar risk-averse preferences, the demand for these contracts is not explained by di erences in the shape of utility functions. Rather, it is the degree to which agents face other, non-hedgeable, background risks that determin...

In this paper, Black Scholes’s pricing model was developed to study American option on future contracts of Brent oil. The practical tests of the model show that market priced option contracts as future contracts less than what model did, which mostly represent option contracts with price rather than without price. Moreover, it suggests call option rather than put option. Using t hypothesis test...

A previous paper (West 2005) tackled the issue of calculating accurate uni-, biand trivariate normal probabilities. This has important applications in the pricing of multi-asset options, e.g. rainbow options. In this paper, we derive the Black–Scholes prices of several styles of (multi-asset) rainbow options using change-of-numeraire machinery. Hedging issues and deviations from the Black-Schol...

conclusions endoscopic keel placement should be done with heavy suture through cricothyroid and thyrohyoid membranes. surgeons should suture the keel to the anterior laryngeal wall with specially designed lichtenberger’s needle-carriers to prevent complications such as keel aspiration, adhesion formation and imposing a second trip under general anesthetics, which put the patient at increased ri...

The empirical evidence on the effect of options trading on the underlying stocks primarily comes from the United States. The existing literature is surveyed by Damodaran and Subrahmanyam (1992). They find a consistent evidence of positive excess returns with the introduction of call options and negative excess returns with the introduction of put options. They also find strong evidence of a dec...