求文：

Income Convergence across U.S. States: An Analysis Using Measures of Concordance and Discordance

Don J. Webber
University of the West of England - School of Economics; Leeds Metropolitan University - Policy Research Institute

Paul White
University of the West of England - School of Economics

David O. Allen
University of the West of England - School of Economics

Journal of Regional Science, Vol. 45, No. 3, pp. 565-589, August 2005

非常感谢！