Based on the 11 major commercial Banks in China 2004-2009 total factor productivity (TFP) calculations, this paper analyzed the trends of TFP and the convergence of TFP differences among the Banks.

本文通过对我国11家主要商业银行2004 - 2009年全要素生产率的测算，分析了其全要素生产率的变化趋势以及各银行全要素生产率差异的收敛性。

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An optimal currency area would require convergence on monetary, fiscal, exchange rate, and political policies, which in turn would lead to productivity and growth rate convergence, explained Roubini.

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