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Have Air Pollutant Emissions Converged Among U.S. Regions? Evidence from Unit Root Tests
Author(s) -
List John A.
Publication year - 1999
Publication title -
southern economic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.762
H-Index - 58
eISSN - 2325-8012
pISSN - 0038-4038
DOI - 10.1002/j.2325-8012.1999.tb00229.x
Subject(s) - unit root , convergence (economics) , economics , air pollutants , pollutant , econometrics , unit (ring theory) , air quality index , unit root test , distribution (mathematics) , natural resource economics , air pollution , environmental science , macroeconomics , mathematics , geography , meteorology , cointegration , chemistry , mathematical analysis , mathematics education , organic chemistry
Previous studies of income distribution have found evidence indicating that incomes across U.S. regions have converged, supporting the prediction of the neoclassical growth model. A potential shortcoming in these studies is that only one measure of well‐being is considered—a measure of wealth linked to incomes or production. This paper examines whether income convergence was accompanied by air pollutant emission convergence. Results from unit root tests provide some evidence that indicators of environmental quality have converged across U.S. regions during the 1929‐1994 period.