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Alternative regional specification and convergence of U.S. regional growth rates
Miller, Jon, (2005)
Time-series tests of stochastic earnings convergence across US nonmetropolitan counties, 1969 - 2004
Genc, Ismail H., (2009)
Stochastic convergence tests for US regional per capita personal income : some further evidence ; a research note
Genc, Ismail H., (2011)