Dynamic relationships of knowledge creation activities in supply chains: Evidence from patent data in the US auto industry

To examine the coordination of knowledge creation activities (KCAs) in the supply chain, this paper used time series analyses to study the dynamic relationships of KCAs between buyers and suppliers in the auto industry. Using patent data a stationary relationship, it had been disclosed between both parties even if KCAs of either side were non-stationary over the long run. Furthermore, it was disclosed by phenomenon that, in comparison with suppliers, auto makers adjust more actively back to the equilibrium while deviation occurs. Finally, one side's fluctuation is not triggered by the other side's previous fluctuations; whereas both sides' fluctuations are positively correlated and occur simultaneously.