The aim of this paper is to consider instability and ambiguity problems on portfolio selection. We examine the impact of estimation errors on financial portfolios optimization processes. We investigate the controversy problem of international and domestic optimal diversification strategies...

This paper examines the impact of estimation errors on the financial portfolios optimization processes and investigates the controversy problem of the international and domestic optimal diversification strategies choice from an American investor’s point of view. We introduce the concept of...

This paper applies the mean-variance portfolio optimization (PO) approach and the stochastic dominance (SD) test to examine preferences for international diversification versus domestic diversification from American investors’ viewpoints. Our PO results imply that the domestic diversification...

The aim of this paper is to investigate the behavior of international equity returns and correlations using the discrete-time Markov-switching model and the impact of this behavior on international portfolio choices. We take the perspective of a US-based global investor who considers investment...

The purpose of this paper is to study the portfolio choice problem in the presence of a mixture of barriers to international investment from the view point of G-7 investors. We suggest a methodology based on a combination of the Analytic Hierarchy Process (AHP) and the weighted goal programming...