摘要：Investments in research and development (R&D) have been identified as a major engine of growth by recent endogenous models so many studies have investigated the determinant and intensity. The benefit of acquiring R&D spillovers is that spillovers lead to improved efficiency of existing factors of production. Since International technology spillover is a major source of technological progress for both developed and less developed countries, it has been emphasized. This study analyses the effective factors in investment with emphasize on R&D spillovers across OECD countries in 2008. Following a traditional regression analysis, spatial variations in the relationships are examined with geographically weighted regression (GWR) to obtain locally different parameter estimates. The obtained results show the positive and negative domain effects of R&D spillovers, openness trade, and GDP growth on domestic R&D investment but the effect of R&D expenditures funded by government is negative. The analysis also confirms spatial variation of R&D expenditures financed by government.
关键词：Research and development; international spillover; affecting factors; geographically weighted regression; OECD
