TECHNOLOGICAL CHANGE AND SURPLUS LABOUR IN EGYPTIAN AGRICULTURE, 1952–1972
估计了埃及农业的生产函数，发现1952-1972年间存在缓慢的劳动力使用型技术变革，且大部分时期劳动力边际产出为负，即存在剩余劳动力。
This paper has two main purposes. First to determine if technical innovation has occurred in Egyptian agriculture and whether or not it has been labour‐using in nature. Secondly, to determine whether or not the marginal product of labour in Egyptian agriculture has been negative (surplus labour). The time period covered by the study is 1952 to 1972. The above objectives were met by estimating a weak disposability of inputs (WDI) production function. The characteristics of the weak disposability of inputs function were discussed in great detail, since much of the profession is unfamiliar with this functional form. The function was then estimated and the results seemed to indicate that this functional form was appropriate for Egyptian agriculture. The results of the estimation process indicated that labour‐using technical innovation had indeed occurred, although at a very slow rate. In addition, for most of the time period covered the marginal product of labour was indeed negative.