This paper studies a two-player zero-sum Dynkin game arising from pricing an option on asset whose rate of return is unknown to both players. Using filtering techniques, we first reduce the problem bidimensional diffusion (X,Y). Then characterize existence Nash equilibrium in pure strategies which each player stops at hitting time (X,Y) set with moving boundary. A detailed description stopping ...

A new model of asset management for a business organization is proposed based on the uncertainty theory in which the capital assets are managed. Here, a continuous-time utility portfolio problem with the assumption of Hyperbolic Absolute Risk Aversion (HARA) utility function is examined from an investor whose income is generated by return and capital gains on investments in risky tangible asset...

In financial markets such as Tehran Stock Exchange, P/E coefficient, which is one of the most well-known instruments for evaluating stock prices in financial markets, is considered necessary for shareholders, investors, analysts and corporate executives. P/E is used as an important indicator in investment decisions. In this research, harmony search metaheuristic algorithm is used to select opti...

We analyze the performance of retail firms for the period 1978-97 using public financial data. Our performance measures are long-term stock returns and whether the firm filed for bankruptcy in the period of study. We assume that over a long time period of at least five years, stock returns are a reasonable measure of the overall success of a firm. We have found a very wide disparity in performa...

the debt is one of the principal component of accounting equation and capital structure of most companies. during last fifteen years the usage trend of debt was increasingly improved in companies' eps. american ones. in this research we tried to answer the following question: is there any meaningful relation between debt ratio and return on assets (roa) in sec of tehran and its industries?...

in this paper we analyze the relationship between creditrisk & profitability in iranian banks. the credit risk is measured bynon-performing loans ratio &loan; loss provision ratio. also, theprofitability has been measured by return on assets &return; on equity.the survey data are from fifteen iranian banks& credit institutesduring the time period of 2003 to 2009.results show that there is asign...

The tightening of the European Union climate and energy policy, directed to raising the resilience and effectiveness of the European Union Emissions Trading System, may influence on companies' economic performance. Polish energy companies, which mainly use coal in the energy production process, are particularly worried about the potential negative consequences associated with the implementation...