Rational investors perceive correctly the value of financial information. Investment in information is therefore rewarded with a higher Sharpe ratio. Overconfident investors overstate the quality of their own information, and thus attain a lower Sharpe ratio. We contrast the implications of the two models using a survey of customers of an Italian leading bank with portfolio data and measures of...

This paper finds that mean-variance portfolio optimization of stocks, bonds, hedge funds, real estate investment trusts and commodities is sufficiently exact to optimize the investor’s utility. We approximate the expected utility using a Taylor series expansion including terms involving third and fourth order moments. The empirial findings for monthly data from August 1994 August 2009 suggest t...

Funds of Funds (FoF) are particular investment funds that invest resources in some mutual funds. This type of funds offers the possibility to achieve an higher diversification that an investor can’t realize using other instruments. One of the main differences among FoFs available is the strategy adopted by the manager to select the investment funds to include in the portfolio and the number of ...

This paper evaluates the market timing and security selection capabilities of Australian pooled superannuation funds over the eight-year period from January 1991 to December 1998. Evaluation of both components of investment performance is surprisingly scarce in the Australian literature despite active investment managers engaging in both market timing and security selection. The paper also eval...

In the context of the historical development of portfolio theory the authors describe a stochastic asset/liability modelling exercise for a closed pension fund portfolio, illustrating the reduction in variance of estimated future surplus which can be achieved by investment in index-linked securities. Equity investment would increase the expected level of surplus, but the outcome would be more u...

Entrepreneurs often face undiversifiable idiosyncratic risks from their business investments. Motivated by this observation, we extend the standard real options approach to investment to an incomplete markets environment and analyze the joint decisions of business investments, consumption-saving and portfolio selection. We show that precautionary saving motive affects the investment timing deci...

in the research we try to introduce “network matrix” in selecting optimizing portfolio for active management in investment companies, to evaluating obtained portfolio of this, with this aim that have high efficiency in relation to market portfolio efficiency. first matrix (portfolio) is value-growth stocks that are classified by standards p/e and p/b and second matrix (portfolio) are an aggress...

This paper establishes the income and risk model in financial investment based on multi-objective programming theory, aiming to analyze the relationship between risk and return in financial investment and discuss the relationship between the risk the investor shall bear and decentralization degree of investment project. MATLAB software is used to analyze the investor’s optimized return under fi...

This paper examines the bilateral, source and host factors driving portfolio equity investment across a set of countries using International Monetary Fund’s new dataset on international equity holdings at the end of 1997, 2001 and 2002. The paper finds that the bilateral equity investment is strongly correlated with the underlying patterns of trade in goods and services. The information asymmet...