spense 中文意思是什麼
spense
解釋
n. 名詞 〈主 Scot. 〉1. 食品貯藏室。2. （學校等的）食品供應部。
3. （鄉間的）內室，起居室。
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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:比較優勢始於成本差異，並一直沒有突破成本差異，而不考慮產品的附加值。
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