in this research, performance of portfolios formed by use of grid strategy based on new variables (aggressive, indifference and defensive stocks) presented by rahnamaye roodposhti (1388), and traditional ones (growth, growth-value and value stocks), calculated with sharpe and treynor performance measures and tested by an active portfolio management approach to identify the portfolios by perform...

The literature presents a clear divide between the so called market and accounting based approaches to bankruptcy prediction. With this in mind, this paper employs the discrete time hazard model framework of Shumway (2001) to test the information content of both market and accounting based models using Australian data. We …nd that market based models signi…cantly outperformed accounting based m...

Since the emergence of power market, the target of power generating utilities has mainly switched from cost minimization to revenue maximization. They dispatch their power energy generation units in the uncertain environment of power market. As a result, multi-stage stochastic programming has been applied widely by many power generating agents as a suitable tool for dealing with self-scheduling...

abstract one of the major risks in the agricultural sector is the price fluctuations risk of agricultural products. futures markets for agricultural products as one of the policies and executive approach have a significant impact on reducing price fluctuations of agricultural products. so in this study, in this study the factors affecting farmers likely to participate in the future market for p...

Job Market Signaling and Employer Learning This paper extends the job market signaling model of Spence (1973) by allowing firms to learn the ability of their employees over time. Contrary to the model without employer learning, we find that the Intuitive Criterion does not always select a unique separating equilibrium. When the Intuitive Criterion bites and information is purely asymmetric, the...