The evolution of interdependence in world equity markets—Evidence from minimum spanning trees

By Ricardo Coelho, C. Gilmore, Brian M. Lucey, Peter Richmond, S. Hutzler. 2006

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Abstract The concept of a minimum spanning tree is used to study the process of market integration for a large group of national stock market indices. We show how the asset tree evolves over time and describe the dynamics of its normalized length, mean occupation layer, and single- and multiple-step linkage survival rates. Over the period studied, 1997–2006, the tree shows a tendency to become more compact. This implies that global equity markets are increasingly interrelated. The consequence for global investors is a potential reduction of the benefits of international portfolio diversification.

Subfields: Economics and Econometrics, Finance

View Paper: https://www.semanticscholar.org/paper/1849d3cf5c658a76839c1e7ca18cc90890b82e86

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