| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP8930 |
| DP8930 Ricardo's Theory of Comparative Advantage: Old Idea, New Evidence | |
| Dave Donaldson; Arnaud Costinot | |
| 发表日期 | 2012-04-01 |
| 出版年 | 2012 |
| 语种 | 英语 |
| 摘要 | When asked to name one proposition in the social sciences that is both true and non-trivial, Paul Samuelson famously replied: `Ricardo's theory of comparative advantage'. Truth, however, in Samuelson's reply refers to the fact that Ricardo's theory of comparative advantage is mathematically correct, not that it is empirically valid. The goal of this paper is to assess the empirical performance of Ricardo's ideas. We use novel agricultural data that describe the productivity in 17 crops of 1.6 million parcels of land in 55 countries around the world. Crucially, this dataset contains information about the productivity of each parcel of land in all crops, not just those that are currently being grown. This direct information about relative productivity differences across economic activities allows us to compute, for the first time, the output predicted by Ricardo's theory of comparative advantage. Despite all of the real-world considerations from which this theory abstracts, we find that Ricardo's theory of comparative advantage has significant explanatory power in the data, at least within the scope of our analysis. |
| 主题 | International Trade and Regional Economics |
| 关键词 | Comparative advantage Ricardian theory |
| URL | https://cepr.org/publications/dp8930 |
| 来源智库 | Centre for Economic Policy Research (United Kingdom) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/537768 |
| 推荐引用方式 GB/T 7714 | Dave Donaldson,Arnaud Costinot. DP8930 Ricardo's Theory of Comparative Advantage: Old Idea, New Evidence. 2012. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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