Which supply chain and ultimately, capital flow, logistics, information flow

Regardless of the supply chain and ultimately, capital flow, logistics, information flow, like the nature of the food chain are inter-related, like, once a link errors, it will be like  cubic boron nitride  as layers affected.
Just stick to the perspective of PDC simple analysis of what the supply chain, the actual economic activity than  grinding wheel  complex, involving a wide range of more. That is why now why the popular supply chain management, many companies are in the study.