We explore the importance of modeling strategies when estimating the emissions-income relationship. Using U.S. state-level panel data on nitrogen oxide and sulfur dioxide emissions, we estimate several environmental Kuznets curves using the standard parametric framework as well as a more flexible semiparametric alternative. Formal statistical comparisons of the results overwhelmingly reject the parametric approach. Moreover, the differences, particularly for sulfur dioxide, are economically significant. Copyright (c) 2003 President and Fellows of Harvard College and the Massachusetts Institute of Technology.
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Volume (Year): 85 (2003) Issue (Month): 4 (09) Pages: 1038-1047 Download reference. The following formats are available: HTML
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