I formulate and estimate a model of externalities within countries and technological interdependence across countries. I find that external returns to scale to physical capital within countries are 8 percent; that a 10 percent increase of total factor productivity of a country's neighbors raises...

The purpose of the research is to analyze and investigate the interest of primary school pupils in natural science topics within primary school subject fields. Examining the existing curricula, it becomes evident that natural science topics are intertwined in different subject fields. Based on...

Korean Abstract: 본 논문은 지적재산권 강화와 경제성장간의 상관관계를 1975~2000년 기간의 34개국을 대상으로 분석하였다. 분석결과는 다음과 같다. 첫째, 특허권 강화는 기술혁신을 촉진하여 성장에 기여하기보다는 자본축적을...