Geographic aggregation and induced innovation in American agriculture

被引：22

作者：

Liu, Qinghua

Shumway, C. Richard ^{[1
]}

机构：

[1] Washington State Univ, Sch Econ Sci, Pullman, WA 99164 USA

[2] Washington Dept Fisheries & Wildlife, Olympia, WA 98501 USA

来源：

APPLIED ECONOMICS | 2006年 / 38卷 / 06期

关键词：

D O I：

10.1080/00036840500397457

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

The induced innovation hypothesis is tested for the USA and western regions using cointegration procedures. An error correction model separates short-run and long-run effects of relative price changes. A significant difference in the elasticities of factor substitution along the isoquant and the innovation possibility curve implies induced innovation. The estimated results support the hypothesis for Washington, the Pacific Northwest, and the Western Region, but not for the nation. Corroborative tests of weak exogeneity fail to support the hypothesis in any of the geographic units. Changes in output level and research investment do not significantly bias agricultural technology in the USA.

引用

页码：671 / 682

页数：12

共 46 条

[1] THEORY OF INDUCED INVENTION [J].