On the Irrelevance of Input Prices for Make-or-Buy Decisions
证明，即使投入品价格不反映高效在位供应商的成本，新进入者仍可能做出高效的自制或外购决策，因为下游战略考量会引导其行为。
This paper demonstrates that input prices need not reflect the costs of an efficient incumbent supplier in order to induce entrants to implement efficient make-or-buy decisions. Because of strategic downstream considerations, entrants may always undertake efficient make-or-buy decisions, regardless of the prices at which they are authorized to buy key inputs from incumbent suppliers.