Click to increase image sizeClick to decrease image size Additional informationNotes on contributorsJane H. LeutholdJane H. Leuthold is a professor of economics at the University of Illinois at Urbana-Champaign (e-mail: leuthold@uiuc.edu). The author would like to thank Burks Oakley and Lanny Arvan, Mark Manfredo, and Web master Gary Michael of the University of Illinois for their helpful comments. She also gratefully acknowledges financial support from the Sloan Center for Asynchronous Learning Environments (SCALE) and from the Educational Technologies Board at the University of Illinois.
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Jane H. Leuthold (1998) studied this question.
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