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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >An ever-closer union? Examining the evolution of linkages of European equity markets via minimum spanning trees
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An ever-closer union? Examining the evolution of linkages of European equity markets via minimum spanning trees

机译:越来越紧密的工会?通过最小生成树研究欧洲股票市场联系的演变

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The concept of a minimum spanning tree (MST) is used to study the process of comovements for 21 European Union stock market indices. We show how the minimum spanning tree and its related hierarchical tree evolve over time and describe the dynamics. Over the period studied, 1999-2006, the French equity market provides the main linkages in the system. The 2004 Accession states are more loosely connected to the other markets; they form two groupings, with the Czech Republic, Hungary, and Poland having tighter links to the main markets than the remaining Accession markets. Shorter distances between markets indicate a potential reduction of the benefits of international portfolio diversification in European markets, with the possible exception of those markets at the outer limits of the MST. (C) 2008 Elsevier B.V. All rights reserved.
机译:最小生成树(MST)的概念用于研究21种欧盟股票市场指数的联动过程。我们展示了最小生成树及其相关的分层树如何随时间演变并描述了动态。在研究期间(1999-2006年),法国股票市场提供了系统中的主要链接。 2004年的加入国与其他市场的联系更加松散。它们分为两个组,捷克共和国,匈牙利和波兰与主要市场的联系比其余加入市场更紧密。市场之间的距离越短,表明欧洲市场中国际投资组合多元化的收益可能会减少,但那些市场可能不在MST的外部限制。 (C)2008 Elsevier B.V.保留所有权利。

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