THE JOURNAL OF E conomi Educa WINTER 2004 VOLUME 35 NUMBER 1 Research in Basic Math Skills and Performance in an Economic Introductory Economics Class Education Charles L. Ballard and Marianne F Johnson Grade Dropping: An Empirical Analysis Ellen Sewell Economic Mind Maps as Classroom Exercises Instruction John W Budd An Experiment on Enforcement Strategies for Managing a Local Environment Resource James J. Murphy and Juan-Camilo Cardenas Content Limit Pricing with Incomplete Information: Articles in Answers to Frequently Asked Questions Economics Timothy L. Sorenson The Money-Creation Model: Graphic Illustration Ching-chong Lai,Juin-jen Chang, and Ming-ruey Kao Features Changing Incentives and Time Allocations for and Academic Economists: Results from 1995 and Information 2000 National Surveys Cynthia L. Harter, William E. Becker, and MichaelWatts Book Reviews Online Comparative Advantage and Gains from Specialization-Flash K. K. Fung and Manjunath Reddy Acknowledgments