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Discussion Paper
Analyzing the export flow from Texas to Mexico
From 1997 to 2008, Texas shipped 40 percent of its manufacturing exports to Mexico. This puts Texas-Mexico among the largest state-country trading relationships. But this share has been declining recently. A gravity equation cannot account for either of these facts, even though Texas and Mexico share a border. This positive contiguity effect is not unique in state export data. I study the features of the Texas-Mexico relationship to try to account for the size of the export flow and the recent decline in share. Data limitations prevent a full accounting, but the most likely feature is the ...