| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w25195 |
| 来源ID | Working Paper 25195 |
| The Intensive Margin in Trade | |
| Ana M. Fernandes; Peter J. Klenow; Sergii Meleshchuk; Denisse Pierola; Andrés Rodríguez-Clare | |
| 发表日期 | 2018-10-29 |
| 出版年 | 2018 |
| 语种 | 英语 |
| 摘要 | The Melitz model highlights the importance of the extensive margin (the number of firms exporting) for trade flows. Using the World Bank's Exporter Dynamics Database (EDD) featuring firm-level exports from 50 countries, we find that around 50% of variation in exports is along the extensive margin --- a quantitative victory for the Melitz framework. The remaining 50% on the intensive margin (exports per exporting firm) contradicts a special case of Melitz with Pareto-distributed firm productivity, which has become a tractable benchmark. This benchmark model predicts that, conditional on the fixed costs of exporting, all variation in exports across trading partners should occur on the extensive margin. We find that moving from a Pareto to a lognormal distribution allows the Melitz model to match the role of the intensive margin in the EDD. We use likelihood methods and the EDD to estimate a generalized Melitz model with a joint lognormal distribution for firm-level productivity, fixed costs and demand shifters, and use "exact hat algebra" to quantify the effects of a decline in trade costs on trade flows and welfare in the estimated model. The welfare effects turn out to be quite close to those in the standard Melitz-Pareto model when we choose the Pareto shape parameter to fit the average trade elasticity implied by our estimated Melitz-lognormal model, although there are significant differences regarding the effects on trade flows. |
| 主题 | International Economics ; Trade |
| URL | https://www.nber.org/papers/w25195 |
| 来源智库 | National Bureau of Economic Research (United States) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/582869 |
| 推荐引用方式 GB/T 7714 | Ana M. Fernandes,Peter J. Klenow,Sergii Meleshchuk,et al. The Intensive Margin in Trade. 2018. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| w25195.pdf（1063KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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