this article investigates fluctuations in stocks prices at tehran stock exchange, assuming that investors' utility stems from fluctuations in value of stocks as well as consumption. thus, the two behavioral phenomena discussed in prospect theory, i. e. loss aversion and house money effect, were factored into consumption-based asset pricing model and investor's utility function, which ...

Problem 7.5. Steve is trying to decide how to invest his wealth in the stock market. He decides to use a probabilistic model for the shares price changes. He believes that, at the end of the day, the change of price Zi of a share of a particular company i is the sum of two components: Xi, due solely to the performance of the company, and the other Y due to investors’ jitter. Assuming that Y is ...

Social impact bonds (SIBs) have been welcomed enthusiastically as a new funding tool for social innovation, yet also condemned as an instrument that neglects beneficiaries’ and taxpayers’ interests, opening profit opportunities in the field of social politics for smart private investors. We will shed a more analytical light on SIBs, assuming that, like any contract, SIBs try to align interests ...

The study of weak scattering from inhomogeneous media or interface roughness has long been of interest in sonar applications. In an acoustic backscattering model of a stationary field of volume inhomogeneities, a stochastic description of the field is more useful than a deterministic description due to the complex nature of the field. A method based on linear inversion is employed to infer info...

stock selection method in stock exchange is an important issue for investors in such markets. investors will gain benefits more than market average provided that they make logical decisions while selecting stocks. the issue of stock selection in markets like tehran stock exchange (that are not so efficient) is requires more attention of the investors as there is not a suitable equilibrium betwe...

the purpose of this research is to evaluate the ability of mutual funds investors to forecast the performance of mutual funds and selecting the best performed funds. it should be mentioned that both individual and institutional investors have been evaluated in this study. in order to answer the question whether the investors have the ability to forecast the performance of mutual funds or not, w...

If f(x1, ..., xn) ∈ Z[x1, ..., xn] has the property that every integer specialization gives an integral square value, then f is itself the square of a polynomial. We also give an effective version of this result by using an effective version of a classical theorem of E. Noether along with a theorem of Lang and Weil.