The result is highly significant in specifications 2, 4, and 5 with elasticities of estimated GDP equal to 0.371, 0.150, and 0.139 respectively; however, it is statistically insignificant in the ZIPPML model except for column 2 where it has a significant trade effect.
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The effect of sanitary and phytosanitary measures on Cameroon's cocoa exports: An application of the gravity model.
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