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New Theory of Decision-Making Seeks To Explain Why Humans Don’t Make Optimal Choices

  • Tom Padovan

June 7, 2022

People often use relative thinking when they should use absolutes; vice-versa

A new theory of economic decision-making from Mina Mahmoudi, a lecturer in the Department of Economics at Rensselaer Polytechnic Institute, offers an explanation as to why humans, in general, make decisions that are simply adequate, not optimal.

In research published today in the Review of Behavioral Economics, Dr. Mahmoudi theorizes an aspect of relative thinking explaining people may use ratios in their decision-making when they should only use absolute differences. The inverse is also possible.

“Understanding how the cognitive and motivational characteristics of human beings and the operating procedures of organizations influence the working of economic systems is of critical importance,” Dr. Mahmoudi said. “Many economic behaviors such as imitation occur and many economic institutions like inventories exist because people cannot maximize or because markets are not in equilibrium. Our model provides an example of a behavior that occurs because people cannot maximize.”

This model can be applied to a variety of behavioral economic experiments in the gambling industry and financial markets among others.

The paper, “A Ratio-Difference Theory of Choice,” was co-authored by Mark Pingle from the University of Nevada-Reno and Rattaphon Wuthisatian from Southern Oregon University.

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