Obesity and overweight are the last decades, becoming more common, more than half of the west - of the population is overweight and one fifth. obesity in young increase has been rapid. Obesity, particularly when combined - tea, and smoking increase the morbidity of cardiovascular disease, metabolisiin illnesses such as diabetes, and many cancers. Obesity and tobacco are developed countries, the most important preventable causes of death. At the same time, obesity in slimming, and even harmful to health weight loss methods, such as smoking, weight management is a means to become a more general friendly ".
Rapid weight loss-oriented weight reduction is often adverse health effects such as weight gain over the original weight and body changing unhealthy. Three-quarters significantly says have increased the weight back. Smoking and repeated weight reduction effects of overweight and obesity development of NCP - each other.
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Standard option pricing models, such as the Black-Scholes model and binomial model, assume perfect capital markets, a martingale diffusion process for underlying asset returns and replicability of option payoffs using the underlying asset and the risk-free asset. Under these assumptions, options are priced by disallowing arbitrage opportunities. Hence, standard models predict that only six factors enter into the option pricing formulas: the price of the underlying asset, exercise price, time to maturity, risk-free interest rate, volatility and dividends on the underlying asset. Other factors which may affect the price of the underlying asset, such as expected future stock returns and investors’ preferences about the higher moments of the underlying asset return distributions, are not priced.
However, when the perfect market assumption is relaxed, it becomes difficult to replicate option payoffs. Consequently, option prices can deviate from the prices of the replicating portfolios, and to some extent, become non-redundant securities [Figlewski (1989), Figlewski and Webb (1993) and Grossman (1995)]. Prices of the non-redundant securities are then determined both by the supply and demand for these securities as well as limited arbitrage considerations in imperfect markets. This approach opens up the possibility that additional factors could enter into option pricing. Specifically, stock market momentum can change investors’ risk aversion and their perceptions about the mean, volatility, or the higher moments of the underlying stock market return distribution and thereby affect the supply and demand for options. In this paper, we test the predictions of the standard option pricing models that there should be no relation between the option prices and the stock market momentum.
