Why did the U.S. Conduct QC in the Field of Public Health in Occupied Japan?

The purpose of paper is to answer the research question why the United States, which played the center role in occupied Japan, conducted the quality control (QC) in the field of public health in Occupied Japan.In particular, this paper argues that the statistical quality control (SQC) advocated by W. Edwards Deming who was an Advisor in Sampling, Bureau of the Budget, Executive Office of the President Truman contributed to producing larger amount and better quality of pharmaceutical products centering anti-TB drugs at lower cost in occupied Japan.The results of the SQC were in line with what the GHQ/PHW intended to develop Japanese pharmaceutical industry.BecauseChief Sams aimed at self-sustaining development of Japanese pharmaceutical industry, which was forced to be independent from the protection of the United States since Dodge Line was conducted in 1949.