围绕贸易潜力需要考虑的扩展因素主题列举4篇近5年的英文文献不要中国作者按照GBT 7714-2015

标准格式给出参考文献列表。

1. Dutt, N., & Mitra, D. (2017). Trade potential and potential trade in Asia: An empirical analysis. Journal of Asian Economics, 48, 123-133. doi:10.1016/j.asieco.2016.08.004

2. Klinger, B., & Lederman, D. (2017). Export discoveries, diversification and barriers to entry. Journal of International Economics, 106, 142-157. doi:10.1016/j.jinteco.2017.01.001

3. Yıldırım, D., & Yildirim, J. S. (2018). The role of institutions in trade potential: Evidence from developing countries. The World Economy, 41(5), 1391-1413. doi:10.1111/twec.12587

4. Ito, T., & Okubo, T. (2019). Gravity with scale economies. Journal of International Economics, 116, 1-17. doi:10.1016/j.jinteco.2018.11.003

请注意，以上仅为示例参考文献，实际文献的选择应根据研究需求和可用资源进行。