Knowledge Capital and Cost Structure in the U.S. Food and Fiber Industries
研究1960-1980年代美国食品与纤维加工业中，研发、高科技和人力资本三种外部知识资本带来的规模经济，发现它们显著降低私人要素投入和成本，尤其人力资本对纺织业劳动使用影响较大。
Abstract We explore the existence and extent of scale economies arising from three different external “knowledge capital” factors—investments in R…D, high‐tech, and human capital. These relationships are evaluated for the (two‐ and three‐digit level) food and fiber processing industries from the 1960s through the 1980s. The results generate strong evidence of scale economies but also suggest that the three knowledge capital factors have tended to reduce input use (and thus costs) for all privately demanded factors. The impacts on private capital are particularly large, although human capital appears to have a relatively large impact on labor use in the textiles industry.