Exportação brasileira de soja em grãos: evolução e considerações sobre seus determinantes para o período de 1980–2001

This work presents the results of the estimation of a soybean exportation function for Brazil,in the period between 1980 and 2001. The dynamics of the exportations were specifically analysedwith focus on the 90s, due to the higher degree of economic opening of that decade, and theimpacts of the fluctuating exchange rate over the determinants of the exports of this sector. Themodel proposed to estimate the exportation fuction of the soybeans was the Error Correction Model,which fit well to the variables that were specified and returned the expected relationships among theestimated parameters. The elasticities obtained were high and significant, which indicated that theexports react to variations in external price, internal price and internal revenue. The exchange ratealso feratured a positive and significant elasticity, showing that the recurrent devaluations in thisperiod of fluctuating exchange rates incentivated the brazilian soybean exportations.