Department of Economics
PhD Theses:


Tuna A. DİN«

Appropriate Technology and Productivity Differences: Two Models Based on Differences in Skill Endowments

(Supervisor: Erhan Aslanoğlu)


The sources of income differences across countries are some of the most interesting, important and versatile research field in the science of economics. The works on the topic suggest that differences in technological knowledge in many cases are the main source of these income differences. One branch of the literature proposes that this is because of countriesí differential access to the most advanced technologies, while the other stresses the importance of differences in the appropriateness of these technologies to the developing countriesí needs. In this thesis, we argue that even when all countries have access to common technology frontier and can use the technologies which are fully appropriate to their needs, there will still be productivity differences across countries. To illustrate this idea, we construct two models in which countriesí choices of technology are determined by the factor endowments. In the first model, the technology frontier is taken as exogenous while in the other it is assumed that the level of technology advances by the well-known learning-by doing effect. What these two models possess in common is the view that differences in the relative supply of skilled and unskilled labor are the main source of the cross country productivity differences.

Keywords: Appropriate Technology, Technology Selection, Productivity, Skilled/Unskilled Labor