A small nation’s comparative advantage: The case of Latvia

Problem of comparative advantage in international trade is important in theoretical and practical aspect. Theoretical models in this area are periodically re-examined in search for empirical evidence. The aim of the paper is to verify the two fundamental theories in the case of a small European country - Latvia -.

An empirical comparison of different risk measures in portfolio optimization

Risk is one of the important parameters in portfolio optimization problem. Since the introduction of the mean-variance model, variance has become the most common risk measure used by practitioners and researchers in portfolio optimization. However, the mean-variance model relies strictly on the assumptions that assets returns are multivariate normally distributed.