Mark J. Machina

Mark Joseph Machina (born October 27, 1954) is an American economist noted for work in non-standard decision theory. He is currently a distinguished professor at the University of California, San Diego. The Marschak–Machina triangle, a probability diagram used in expected utility theory, bears his name, along with that of Jacob Marschak.

Mark J. Machina
Born	(1954-10-27) October 27, 1954 (age 70)
Citizenship	United States
Academic background
Alma mater	MIT Michigan State University
Doctoral advisor	Franklin M. Fisher
Academic work
Institutions	University of California, San Diego

Machina Triangle

The Machina Triangle is a way of representing a three dimensional probability vector in a two dimensional space. The probability of a given outcome is denoted by a euclidean distance from the point that represents a lottery (probability).^[1]