Peter Orazem for offering me an opportunity to work with them in summer 2003 and continue later in writing this thesis. I also thank Dr. Tzee Ming Huang for her comments and scheduling to attend my presentation in spite of her travel plans. I appreciate Roxanne Clemens for her help in editing and my other friends for their valuable discussion and emotional support. This work could not have been done without the FAO fellowship and financial assistance. Vll Abstract This study examined the

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... of nutrition on the growth rate of country economies over time. Previous studies on this topic have resulted in debates among researchers over how significant nutritional effects are on individual country economies. For this study, data were collected for four decades (1960s, 1970, 1980s, and 1990s) for 43 low-and middleincome countries. The data were analyzed to determine the effect of nutrition, represented by dietary energy supply (DES), on the growth rate of gross domestic product (GDP) per worker and on labor productivity. The research utilized ordinary least squares, instrumental variables, and random effects regressions in the context of the Solow growth rate model. The research revealed that nutrition did, indeed, have an effect on the economies, but the impact was not very significant for GDP growth rate per worker and labor productivity. The tstatistic for the nutrition variable did not support the contribution of DES to growth rate GDP per worker. On the contrary, other variables such as capital per worker and literacy rate showed stronger impacts than did the DES variable.