Thomas H. Wonnacott is the author of Student Workbook to accompany Introductory Statistics for Business and Economics 4e and Introductory Statistics 5e, published by Wiley. Ronald Johnston Wonnacott OC FRSC was a Canadian economist. Wonnacott received his bachelor’s and master’s degrees from the University of Western Ontario, then earned a doctorate from Harvard University. He taught at Western from 1958 to 1996, and served as William G. Davis Professor of International Trade.