There are different strategies for selecting stocks, and different investors use different strategies according to their risk tolerance or their expected rate of return. In this study, the profitability of a broad range of stock se-lection strategies in Tehran Stock Exchange over the period 1370-1383, has been examined, and it has been investigated whether the successful strategies in other cou...

The portfolio construction problem usually has been viewed in the framework of risk-return trade-off. Using deterministic and stochastic portfolio models used to solve the problem lead to unrealistic results as both the expected return rate and the risk are vague. Moreover, the decision maker frequently deals with insufficient data when selecting a portfolio. Using fuzzy models allows removal o...

financial markets will offer facilities to investors and helps to receive the growth path that we need. tehran stock exchange (t.s.e) market was developed in recent years to help investors and give rise to resources for this purpose. stock market most obtain stockholders satisfaction to guarantee fortune it depends stocks rate of return. clear information will help stock holders receive this ai...

This paper describes compound reinforcement learning (RL) that is an extended RL based on the compound return. Compound RL maximizes the logarithm of expected double-exponentially discounted compound return in returnbased Markov decision processes (MDPs). The contributions of this paper are (1) Theoretical description of compound RL that is an extended RL framework for maximizing the compound r...

In the introductory lectures, we have discussed Markowitz’ theory of mean-variance optimization (MVO) for the selection of portfolios of securities (or asset classes) in a manner that trades off the expected returns and the perceived risk of potential portfolios. Consider assets S1, S2, . . . , Sn (n ≥ 2) with random returns. Let μi and σi denote the expected return and the standard deviation o...

This paper investigates the extent to which stocks of Building materials firms listed in Nigerian Stock Exchange (NSE) are a hedge against the expected and unexpected inflation in Nigeria over the period 2000–2011. Unexpected inflation is computed as the difference between the actual inflation and the estimates of the expected inflation. The study used real rate of return on equity and regressi...

Multiobjective portfolio optimization problem is the portfolio process of the highest expected return among the various financial commodities of the capital market to meet the expected return objectives. And one of the most important and common management issues lies in determining the best portfolio out of a given set of investment proposals. As we know, modern portfolio theory provides a well...

In the asset pricing literature, time-variation in market expected excess return tracked by financial ratios like dividend yield is typically attributed either to changing risk, related to the business cycle, or irrational mispricing. Extending the work on asset allocation and dividend yield by Kandel and Stambaugh (1996) to accommodate variation in risk as well as expected return, we develop B...