The access to rural credit in the last decade has improved the Brazilian and the Rio Grande do Sul State productivity indexes. The objective of this study is to identify the lines of rural credit had some significant contributed to the soybean yield in State. Therefore, it was used the structural model known as Shift-Share to capture the different impacts on variable rural credit comparing data from 2000 to 2011. The results indicate that the contracts effects declined during the period. However, the average rural credit effect accounted for a significant portion of the amounts accessed credit, influencing the positive results observed in soybean yield in the State, so that the productivity effect was higher than the contract effect, but was lower than the average value of the impacts of agricultural loans designed to producers. Hence, there was a reduction in access to credit agreements and a significant increase in real and nominal value of credit influencing productivity.
