In a scenario where two risk-neutral parties S (supplier) and B (Buyer) can make profit by working together, it is efficient to work together as long as the buyers "valuation exceeds the sellers" costs (Schmitz, 2001).
It is efficient to work together as long as the buyers "valuation exceeds the sellers" costs (Schmitz). This is in a scenario where two risk-neutral parties S (supplier) can make profit by working together. This is in a scenario where B (Buyer) can make profit by working together. Schmitz is 2001.