Salem Hanna Khamis - Scientific Contributions

Scientific Contributions

Prof. Khamis contributed tens of scientific research papers in Statistics and Mathematics. Specifically, he contributed to Sampling theory and the tablulation of the Incomplete gamma function, where he wrote the book “Tables of the Incomplete Gamma Function Ratio”.

He contributed in the field of Index Number Theory through a series of papers starting 1972. He developed what became known as, and “indelibly imprinted on all the recent work on international comparisons of prices, real incomes, output and productivity” (Rao, 2005), the Geary-Khamis Method of Computing Purchase Power Parity of Currencies and the Geary-Khamis dollar used to compare different economies.

In addition to his professional work as an international statistician, Prof. Khamis helped many students from Arab countries and many other nationalities to receive scholarships, supporting many students in developing their careers. He was also known for his strong support for all the underprivileged in the world, and for his continuous support of the Palestinian refugee camps and the Palestinian cause.