K. K. Fung is professor of economics at the University of Memphis. His previous works on system dynamics simulations have appeared in System Dynamics Review. He manually played with Maruyama’s model using different initial configurations many years ago and has always wanted to computerize the exercise for wider dissemination. But until the advent of the Internet and the recent publication of AgentSheets (a visual interactive simulation program), this dream has remained elusive.

Economics Department
University of Memphis
Memphis, TN 38152 USA

email: kkfung@memphis.edu
web: http://kkfung.org

Shekhar Vemuri is graduate assistant at the University of Memphis. He mastered AgentSheets in less than a month and was instrumental in animating the tissue-growth exercise.

email: shekharvemuri@rediffmail.com

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