本文討論產能限制如何影響雙佔產量競爭模型市場下之最佳授權決定，並發現外部研發者在面對受產能限制的生產者時，可能傾向於使用單一廠商授權；而內部研發者則可能相對偏好專利費用授權。此兩結果皆顯著相異於Kamien and Tauman (1984, 1986) 及Wang (1998)等傳統授權理論，足見產能限制對最佳授權方式之顯著影響。若進一步討論產能限制分配之影響，則發現若產能限制越集中於單一廠商，則對市場效率及外部研發者之利潤將有越負面之影響。另外，我們亦進一步檢視產能限制對最佳二階段定價授權之影響。

The present research investigates how the capacity constraint may impact the innovator’s optimal licensing decision in a Cournot duopoly. An outside innovator may prefer to license to just one of the producing firms when they face capacity constraints. On the contrary, the inside innovator may prefer fixed fee to royalty licensing. These sharp contrasts compared to the classic findings in Kamien and Tauman (1984, 1986) and Wang (1998) prove the importance of the capacity constraint on the optimal licensing decision. We further show that the less symmetric the distribution of capacity constraints is between the producers, the less efficient the market equilibrium will be, and the lower revenue the outside innovator will generate from licensing its cost reducing technology. Moreover, we also investigate the optimal two-part tariff licensing under capacity constraint.

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