Journal of Economic Integration, Vol. 16, No. 3 (September 2001), pp. 379-398 (20 pages) This study extends the gravity model to include a new measure of the trading partners' location relative to ...
Satellite-based tracking tags, including ARGOS and GPS systems, collect and communicate animal locations and in some cases, acceleration and physiological data—straight to your computer, 24/7. ARGOS ...
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