Economic growth and environmental efficiency: Evidence from U.S. regions. Economics Letters 120 (1): 48-52

Economic growth and environmental efficiency: Evidence from U.S. regions. Economics Letters 120 (1): 48-52 (SCOPUS, EconLit, ISI Listed: Impact factor 0.510 and 5-year 0.677). In common with N. Tzeremes  (2013).

This paper proposes a conditional directional distance function estimator in order to examine the link between regional environmental efficiency and GDP per capita levels. As an illustrative example we apply our model to U.S.  regional data revealing an inverted ‘U’ shape relationship between regional environmental efficiency and per capita income. The results derived from a non-parametric regression indicate a turning point at 49,000 dollars.

JEL Codes: C14; Q50; R11.