The Economics of Wassily Leontief: Input-Output Analysis

This is a fascinating example of mathematical thinking, and also a practical use of mathematics in the field of economics.

Wassily Leontief was an economist who got into trouble with the Soviet Union and so left for the United States. The Soviet's loss was America's gain, as Leontief was awarded the Nobel Memorial Prize in Economic Sciences after establishing his system of input-output analysis. This, in 6 minutes and 20 seconds, is introduced here by David Harvey during one of his lectures.

David Harvey has been lecturing on the influence of Karl Marx on modern-day economic thinking in the West for over 40 years. He has many more insights to share, on http://davidharvey.org

I am in no way affiliated with David Harvey nor with any Marxist school of thought.