Journal of productivity analysis. 1994;5(2):123-139. doi: 10.1007/bf01073850 Q21.82025
A structural equation approach to measuring technological change: An application to Southeastern U.S. Agriculture
一种用于衡量技术变革的结构方程方法：在美东南部农业中的应用
DOI: 10.1007/bf01073850
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