Professor Hua Loo-Keng is the first person to have undertaken the task
of popularizing mathematical methods in China. As early as 1958, he
proposed that the application of operations research methods be
initiated in industrial production. With his students, Yu Ming-I, Wan
Zhe Xian and Wang Yuan, Professor Hua visited various transportation
departments to promote mathematical methods for dealing with
transportation problems, and a mass campaign was organized by them and
other mathematicians to advance and apply linear programming methods to
industrial production in Beijing and in Shandong province. However, due
to the fact that these methods have limited applications and their
computation is rather complex, their popularization and utilization in
China have so far been restricted to a small number of sectors such as
the above mentioned transportation departments. In 1958 Hua Loo--Keng
proposed the use of Input-Output methods in the formulation of national
economic plans. Apart from publicizing this method, he carried out
in-depth research on the subject. He also gave lectures on related
non-negative matrix theory, pointing out the economic significance of
various theoretical results.