the purpose of resent research is to analysis and compares performance evaluation models of selected investment companies in tehran stock exchange market in the field of their portfolio management. the duration of research was between years 2009-2014. statistical society the research is consisting of all active investment companies in in tehran stock exchange market which were 30 companies. vol...

This research attempts to investigate the effect of financial constraints and different levels of agency costs on the investment efficiency of companies in Iran. Following the design of the financial risk assessment indexes, the transaction information was collected from the Stock Exchange in the five-year period of 2011-2015. The statistical sample consists of 128 companies selected by samplin...

there are two major methods in predincing the pattern of share value in the stock market: fundamental analysis and technical analysis. i this study we developed a novel model for fundamental analysis of share price and validated it by predicting the behavior of phrama share price in tehran stock market. the efficiency of the fundamental method was compared with that of indicator-based technical...

This paper analyzes the prices paid by foreign companies for acquisitions in the United States relative to the price paid by US companies for mergers. The ultimate purpose of this research is to determine if overpayment by foreign companies for M&A foreign direct investment in the United States is responsible for the historically low returns of foreign companies on their direct investments with...

In this paper I investigate whether firms’ physical investments react to the speculative over-pricing of their securities. I introduce investment considerations in an infinite horizon continuous time model with short sale constraints and heterogeneous beliefs along the lines of Scheinkman and Xiong (2003). I obtain closed form solutions for all quantities involved. I show that market based q an...