隨著知識經濟的快速發展，專利權保護政策是近年來各國政府常用於保護技術創新 廠商的政策之一。因此，其與廠商間的技術授權及產品硏發投資量都可能是影響廠商間 競爭與促進技術進步的重要因素。然而，現有文獻卻甚少針對專利權保護政策如何影響 產品硏發投資量與產品技術授權，以及三者間的相互影響關係進行較爲深入的硏究與探 討。有鑑於此，本計畫將以垂直產品差異性的南北國模型作爲分析主軸，並且建立一個結 合專利權保護政策、進口關稅政策、產品技術授權與產品硏發投資的一般化模型。根據 此模型，我們將探討當南國政府實施專利權保護政策與進口關稅政策時，南國政府如何 決定均衡進口關稅率、授權廠商如何決定均衡產品硏發投資量與均衡權利金，以及兩家 廠商如何在Coumot數量競爭下決定均衡數量等議題。再者，本計畫將分析不同的專利 權保護設定、不同的技術授權方式以及不同的被授權廠商的生產決策對授權廠商選擇均 衡產品硏發投資量與均衡權利金的影響。最後，本計畫將進一步分析比較在不同技術授 權方式下各種南國政府的貿易政策對市場均衡的影響及差異，與在各種南國政府的貿易 政策下不同技術授權方式對市場均衡的影響及差異。
In order to protect the innovator(licensor) against the imitator(licensen), patent protection have become more and more popular around the world. Undoubtedly, these policies as well as technology licensing and product R&D are thus crucial to the competition between firms and to technological progress. There are few papers, however, focus on analyzing their interactions, especially how the patent protection would affect the product R&D, licensing fees or royalty rates. Therefore, in this project, I aim at proposing a general framework for analyzing technology licensing, product R&D, patent protection and import tariff policies in a North-South trade model of vertical product differentiation. Accordingly, I will first analyze how a licensor determines product R&D, fixed licensing fee and royalty rate while licensing its technology to its rival, and what the equilibrium quantities are under Cournot competition. Besides, this project will analyze how the patent protection and technology licensing affect the optimal product R&D. Finally, in order to study these issues more clearly, I will systematically analyze the existence of market equilibriums corresponding to various model settings and the differences among them.
