本論文旨在探討國家研發活動的影響因素,並比較影響因素對OECD與非OECD國家是否存在不同影響。利用33個OECD國家和34個非OECD國家在2004年到2013年間的資料為樣本,採用追蹤資料模型進行估計,實證結果發現以國家研究發展支出及研究發展密度為被解釋變數的估計結果相似,人均國內生產總值及國家高等院校入學率為重要的影響因素,其無論在OECD國家或非OECD國家皆顯著正相關影響。而在OECD與非OECD國家比較中發現,外人直接投資僅對於OECD國家有顯著負向關聯,國家自由程度則僅在非OECD國家中有顯著正向的影響。;The thesis aims to investigate the determinants of national R&D activity. Based on a panel dataset of 33 OECD members and 34 Non-OECD countries during the 2004-2013 period, empirical results are similar when the R&D activity is measured by R&D expenditure or R&D intensity. Per capita GDP and human capital are two key factors that are significantly positive related to R&D activity for all countries. FDI is negatively related to R&D for only OECD members, whereas freedom index has a significantly positive on R&D for only non-OECD countries.