A generalized option-pricing formula is found, based on a nonGaussian stock price model. The dynamics of the underlying stock are assumed to follow a stochastic process with anomalous nonlinear diffusion, phenomenologically modelled as a statistical feedback process within the framework of the generalized thermostatistics proposed by Tsallis. A generalized form of the Black-Scholes differential...

The purpose of this study is to investigate the effect of corporate governance (CG), corporate social responsibility (CSR) and their interactive effect on the value of companies listed on the Tehran Stock Exchange. For this purpose, the data of 194 companies listed on this stock exchange, which was selected using a systematic elimination method, from 2011-2017 were collected and analyzed using ...

We investigate exponential stock models driven by tempered stable processes, which constitute a rich family of purely discontinuous Lévy processes. With a view of option pricing, we provide a systematic analysis of the existence of equivalent martingale measures, under which the model remains analytically tractable. This includes the existence of Esscher martingale measures and martingale measu...

The stock markets have two primary functions, that of providing liquidity and price discovery. While the market micro-structure was mostly ignored or assumed to function ideally for the purpose of asset pricing, M. O’Hara (Journal of Finance, 2003) has established that both liquidity and price discovery affect asset pricing, and in particular asset returns. While the cost of liquidity provision...

I n many industries, managers face the problem of selling a given stock of items by a deadline. We investigate the problem of dynamically pricing such inventories when demand is price sensitive and stochastic and the firm's objective is to maximize expected revenues. Examples that fit this framework include retailers selling fashion and seasonal goods and the travel and leisure industry, which ...