Economic Determinants of Invasion and Discovery of Nonindigenous Insects

Introductions of nonindigenous organisms into the United States have been linked to international trade. The individual contributions of imports, immigration, and international travel, however, are poorly understood because introduction dates are unavailable. We examine relationships between economic trends and discoveries of nonindegenous insects and use these relationships to infer the timing and determinants of introductions. We find that a few variables can explain much variation in species introductions and identifications. The most significant contributor to the introduction appears to be agricultural imports. Currently available proxies for academic effort are weak determinants of the probability that introduced species are identified.


Issue Date:
2008-04
Publication Type:
Journal Article
PURL Identifier:
http://purl.umn.edu/45044
Published in:
Journal of Agricultural and Applied Economics, Volume 40, Number 1
Page range:
37-52
Total Pages:
16
JEL Codes:
F18; N7; Q56




 Record created 2017-04-01, last modified 2017-08-25

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