The Dynamics of Agricultural Biotechnology Adoption: Lessons from series rBST Use in Wisconsin, 1994-2001
利用威斯康星州奶牛场面板数据,分析重组牛生长激素(rBST)采纳的动态过程,区分非采纳者、放弃者、早期和晚期采纳者的特征,发现大型农场更可能采纳,且采纳率将保持中等水平。
This article exploits panel data from Wisconsin dairy farmers to examine the dynamics of recombinant bovine somatotropin (rBST) adoption and to identify the characteristics that distinguish among nonadopters, disadopters, and early and late adopters. Panel methods are used to control for omitted variables and endogenous regressors that call into question coefficient estimates derived from cross-section adoption models. The results, however, confirm previous findings that larger farms with complementary feeding technologies are more likely to adopt rBST, nonadopters appear quite unlikely to become adopters, and rBST adoption will remain at rather moderate levels in Wisconsin. Copyright 2004, Oxford University Press.