This article digresses over the interaction of uncertainty with the firm¡¯s optimal decisions in a simple framework: a standard price-taking (short-run restricted) single-input and output unit, subject to the interaction with a zeromean Bernoulli lottery of variable dispersion. The firm is...

We consider mean-variance portfolio choice of a robust investor. The investor receives advice from J experts, each with a different prior for the distribution of returns. Confronted with these multiple priors the investor follows a min-max portfolio strategy. We study the structure of the robust...

We revisit the problem of calculating the exact distribution of optimal investments in a mean variance world under multivariate normality. The context we consider is where problems in optimisation are addressed through the use of Monte-Carlo simulation. Our findings give clear insight as to when...

The central idea of Disappointment theory is that an individual forms an expectation about a risky alternative, and may experience disappointment if the outcome eventually obtained falls short of the expectation. We abandon the hypothesis of a well-defined prior expectation: disappointment...

Like the stock market, the human capital market consists of a wide range of assets, i.e. educations. Each young individual chooses the educational asset that matches his preferred combination of risk and return in terms of future income. A unique register-based data set with exact information on...

The concept of risk is central to strategy research and practice. Yet, the expected positive association between risk and return, familiar from financial markets, is elusive. Measuring risk as the variance of a series of accounting-based returns, Bowman obtained the puzzling result of a negative...

It has been suggested that domestic liabilities may be an important factor in explaining the existence of a home bias in international investment portfolios. This paper provides a theoretical justification for this claim in a mean-variance framework. However, an empirical analysis for the UK...

With institutional investors increasingly involved in alternative investments, portfolio optimisation within a large universe of hedge funds has become a key area for research. This paper develops a portfolio construction model that is specifically designed for funds of hedge funds,...

The objective of this paper was to compare and to analyze three portfolio selection models: Mean-Variance, Minimax and Minimax Weighted. These models were evaluated using historical data (September 1999 to August 2000, January 2001 to December 2001 and February 2002 to January 2003) obtained...

This paper focuses on two methods for optimum portfolio selection. We compare Mean-Variance method with Mean-VaR method by the means of investment simulation, based on Czech financial market data from turbulent market periods of the year 2007 and the year 2008. We compare both strategies, basing...