This paper provides a broad empirical examination of the major currencies' roles in international capital markets, with a special emphasis on the first year of the Euro. A contribution is made as to how to measure these roles, both for international financing as well as for international...

A popular argument states that most of the diversification in a portfolio can be obtained with a rather small number of securities. In this paper we present three algorithms to approach the underlying NP-hard problem of portfolio optimization with a cardinality constraint. All three of these...