Author: Patrick Gaulé
1. It makes me so sad that China has a rather low odd ratio.
2. The empirical part is not convincing enough. For one thing, average chemistry faculty wage would be much more persuasive than the GDP per capita term.
3. Actually this topic matters for the topic of development convergence. In terms of academic area, the return ratio determines whether the developing countries can catch up with the developed ones. The return decision would be influenced by income difference (a lot of factors here, including job searching costs and matching issues in home country, influenced by wage difference, research environment difference and peer effect), personal emotion for home country and family reasons.