(Indirect) Input Linkages
研究发现技术先进的企业更倾向于从其他先进企业采购投入品，这种模式放大了技术采纳效应，并通过共同投入市场间接提升关联企业的技术水平。
Relative to backward firms, technologically-advanced firms source inputs from other advanced firms. These sourcing patterns lead to a magnification effect of technology adoption. A firm that adopts higher-technology increases the relative supply and demand for higher-technology inputs. As a result, it positively influences the technology of other firms in its production chain. Using data from a Colombian manufacturing survey, we provide evidence that advanced firms disproportionately value advanced inputs. More novel, we provide suggestive evidence that technological advancements in some firms increase the technology of other firms indirectly linked to them through a common input market.