Portfolio diversification in extreme environments : are there benefits from adding commodity futures indices?

Diversifying into commodity futures indices to improve risk-return trade-offs had seemed an inviting prospect a couple of decades ago, due to the increasing correlations between equities themselves and the stable low or negative correlations they exhibited with commodities. But there is a view gaining ground now that the benefits of stock portfolio diversification into commodities have died out due to further changes in the correlation matrices, particularly occurring in times of extreme events. This paper readdresses the aforesaid issue for the period 1999-2010, disaggregated into periods so as to bracket bull and bear phases with large changes in returns. Data for the most important equity and commodity indices are used. One interesting finding is that the role of commodities in optimum portfolio diversification may be more relevant in bear phases.peer-reviewe

Economic crisis in the European periphery: An Assessment of EMU Membership and home Policy Effects Based on the Greek Experience

Our objective in this paper is threefold. First, to identify the major common shocks that hit these countries upon entry into the EMU. Second, taking Greece as our case study, to construct a simple macroeconomic model of the policies Greek governments pursued in the presence of these shocks, and to employ its solution so as to highlight the outcomes that were expected to result. From this endeavor, we find that the policies which were put in place led unavoidably to a severe economic crisis and eventual bankruptcy. Finally, in view of these findings and what happened in 2009,we raise and attempt to answer questions like, for example: How can we explain the policies that were adopted in the advent of monetary union shocks? Could they have been anticipated? And if so, why did they escape the attention of the designers of the Maastricht Treaty? The answer to which we are led by the analysis is that the shocks in all these countries were perceived by their governments as opportunities to hold on to their entrenched positions. That this happened, we conclude, reflects a failure in the mechanisms of economic convergence that were embedded in the Maastricht Treaty as well as in the effectiveness of European Union (EU) institutions that were empowered with their enforcement

Economic crisis in the European periphery: An Assessment of EMU Membership and home Policy Effects Based on the Greek Experience

Our objective in this paper is threefold. First, to identify the major common shocks that hit these countries upon entry into the EMU. Second, taking Greece as our case study, to construct a simple macroeconomic model of the policies Greek governments pursued in the presence of these shocks, and to employ its solution so as to highlight the outcomes that were expected to result. From this endeavor, we find that the policies which were put in place led unavoidably to a severe economic crisis and eventual bankruptcy. Finally, in view of these findings and what happened in 2009,we raise and attempt to answer questions like, for example: How can we explain the policies that were adopted in the advent of monetary union shocks? Could they have been anticipated? And if so, why did they escape the attention of the designers of the Maastricht Treaty? The answer to which we are led by the analysis is that the shocks in all these countries were perceived by their governments as opportunities to hold on to their entrenched positions. That this happened, we conclude, reflects a failure in the mechanisms of economic convergence that were embedded in the Maastricht Treaty as well as in the effectiveness of European Union (EU) institutions that were empowered with their enforcement

Economic Integration and Union Power

The standard utility-maximizing model of the trade union in a closed economy is reformulated for an environment where economic integration is under way or expected to occur soon. In the (European) realistic setting of union-dominated labor markets, domestic wages are shown to be affected by labor market developments abroad. This article provides an explanation of the international transmission of inflation and disinflation Copyright Kluwer Academic Publishers 2002trade union behavior, capital mobility, economic integration,