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          Volume 42, Number 04, November 2010 >

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Title: Technical Barriers to Interstate Trade: Noxious Weed Regulations
Authors: Gopinath, Munisamy
Min, He
Buccola, Steven T.
Keywords: interstate trade
invasive species
JEL Codes: F1
Issue Date: 2010-11
Abstract: We focus on regulations controlling the spread of noxious weeds, especially the trade effects of regulatory differences across U.S. states. We specify a gravity model for each state‚Äôs seed, nursery product, and commodity trade with each other state. Within the gravity model, we examine the role of cross-state regulatory congruence arising from ecological and agronomic characteristics and interest-group lobbying. A spatial-autoregressive Tobit model is estimated with a modified expectation-maximization algorithm. Results show that weed regulatory congruence positively affects interstate trade. By fostering cross-state regulatory differences, consumer and commodity-producer lobbying reduce the value of interstate trade by about two percent per annum.
Institution/Association: Journal of Agricultural and Applied Economics>Volume 42, Number 04, November 2010
Total Pages: 14
From Page: 617
To Page: 630
Collections:Volume 42, Number 04, November 2010

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