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dixit n.武斷的講話;獨斷的主張。

dixon

But in the second phase , all of these theories can still be categorized into 4 kinds : dynamic comparative advantage theories , such as the new factors theories by baldwin and kenen , the life - cycle theory by vernon and hirsh , etc ; intra - industry trade theories such as product differentiation model by stiglitz and dixit , the strategy trade theory by spense , brander and krugman , and so on ; the endogenous trade theory such as technology overflow effect and learning curves theory by romer and krugman , the neo - classic trade theory by tucher and young , and the like ; and the competitive advantage theory by michael porter 在這一時期,經濟學家們提出了形形色色的理論,出現了“百家爭鳴”局面。基本上可以歸于以下四大類型:一是動態的比較優勢理論;二是產業內貿易理論;三是內生國際貿易理論;四是競爭優勢理論。各個階段的比較優勢理論有其時代特點,但一個共同點是:比較優勢始于成本差異,并一直沒有突破成本差異,而不考慮產品的附加值。

But my focus was specially laid on the decision - making of investment under uncertainty and with competition , i first . extend the basic model of dixit & pindyck ' s by allowing the relevant parameter to be a random variable , then proposed an numerical example to show how to solve this model , i gave the algorithm and did the comparative static analysis , finally i developed a model of duopoly under uncertainty , considering the competition between the firms explicitly , using roa , i calculated the two firm ' s values respectively when they take different roles - to be leader or follower , and then checked the possible equilibriums 本文的重點是考察在同時存在不確定性和競爭的情況下,如何用實物期權的理論估算投資項目的價值,為此,文中發展了兩個模型,第一個模型是對dixit & pindyck的模型的擴展,它通過一個相關的隨機變量來考察競爭對項目價值的影響,但沒有考慮企業間的相互博弈,文中給出了一個例子詳細地說明了該模型的求解并做了敏感性分析;第二個模型是一個不確定情況下的雙寡頭模型,文中給出了用實物期權方法計算的兩企業在處于領導者和跟隨者兩種不同境況時的價值,并將企業間的相互博弈考慮在內,考察了可能的均衡狀態。

Treating the book international trade theory by dixit and norman as a benchmark , this paper describes the three changes facing modern international trade theory , explores the comparative advantages of the dual general equilibrium approach in deepening the international trade theory , and shows the causes and process that this approach has been growing into a mainstream analytic paradigm from a special analytic technique 摘要本文以迪克西特與諾曼合著的《國際貿易理論》一書為參照,分析了現代貿易理論所面臨的三種挑戰,探討了對偶性一般均衡分析方法在應對這些實踐挑戰與深化國際貿易理論的比較優勢,并且揭示了對偶性一般均衡分析方法由一種特殊的分析技術成長為國際貿易研究中的主流分析范式的過程與原因。