The "S" Curve Relationship between Export Diversity and Economic Size of Countries
The highly detailed international trade data among all countries in the world during 1971-2000 shows that the kinds of export goods and the logarithmic GDP (gross domestic production) of a country has an S-shaped relationship. This indicates all countries can be divided into three stages accordingly. First, the poor countries always export very few kinds of products as we expect. Second, once the economic size (GDP) of a country is beyond a threshold, its export diversity may increase dramatically. However, this is not the case for rich countries because a ceiling on the export diversity is observed when their GDPs are higher than another threshold. This pattern is very stable for different years although the concrete parameters of the fitting sigmoid functions may change with time. In addition, we also discussed other relationships such as import diversity with respect to logarithmic GDP, diversity of exporters with respect to the number of export goods etc., all of these relationships show S-shaped or power law patterns. Although this paper does not explain the origin of the S-shaped curve, it may provide a basic empirical fact and insights for economic diversity.
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Templet, Paul H., 1999. "Energy, diversity and development in economic systems; an empirical analysis," Ecological Economics, Elsevier, vol. 30(2), pages 223-233, August.
- C. A. Hidalgo & B. Klinger & A. -L. Barabasi & R. Hausmann, 2007. "The Product Space Conditions the Development of Nations," Papers 0708.2090, arXiv.org.
- Sara Johansson & Charlie Karlsson, 2007. "R&D accessibility and regional export diversity," The Annals of Regional Science, Springer, vol. 41(3), pages 501-523, September.
- Jérôme Chave & Simon Levin, 2003. "Scale and Scaling in Ecological and Economic Systems," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 26(4), pages 527-557, December.
When requesting a correction, please mention this item's handle: RePEc:arx:papers:1105.5891. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (arXiv administrators)
If references are entirely missing, you can add them using this form.