Convergence (divergence) and the U.S. states

The purpose of this paper is to examine whether established trends in labor productivity convergence have continued among the contiguous states of the U.S. from 1969 to 1990. This paper brings new and additional state data to bear on the question of productivity convergence among the U.S. states. The findings indicate that when the state value-added is deflated by the state-specific price deflator, a dramatically different picture of productivity convergence emerges. The study also finds that there is less evidence of state productivity convergence once the peculiar behavior of mining or extraction industries is taken into account.