From the viewpoints of universalism and particularism, this paper investigates the process of recommendation by focusing on peer review for the Nobel Prize for Science from 1901 to 1970. The results indicate that self-recommendation practices are routine, especially in developed countries, and that the recommendation network is fundamentally built on mutually beneficial relationships between countries. The analysis also reveals that political, economic, military, biological, and colonial factors irrelevant to scientific performance impact the recommendations. During the study period, the Cold War evoked severe tensions between the Western and Eastern Blocs and influenced recommendations on each side; political and military factors also played a role. The main findings imply apparent evidence for particularism, indicating the presence of bias in the recommendation process. This paper provides suggestions for improvement of the selection process for the Nobel Committee.