中文摘要：

本文首先运用Malmquist指数方法对2000—2008SkiN跨国并购实施银行的经营效率进行测算，发现其经营效率改善与其跨国并购时间间隔长度有关，并且并购行为对技术进步和技术效率影响不同；其次，从盈利能力、成本控制能力以及风险规避能力三个方面对跨国并购影响度进行实证分析。结果表明，跨国并购对实施银行的盈利能力有不显著的影响；对其经营成本有显著的降低作用；对其成本控制能力明显的提高作用，但对其风险规避和管理能力却有明显的恶化作用。

英文摘要：

Firstly, the paper employs the Malmquist index method to measure the operational efficiency of banks that conduct transnational M＆A from 2000 to 2008, which shows the improvement of the operational efficiency has relations with the inter- val length of the transnational M＆A time. M＆A has different influences on technology improvement; secondly, the paper ana- lyzes the effect of transnational M＆A by the empirical model from three aspects, the profitability, cost control ability and risk ability. The results indicate that the transnational M＆A has no significant effect on the profitability of Chinese banks; it significantly reduces the banks＇ operating costs and enhances their cost control ability, worsens the risk and management ability of them.