ARTHUR O'SULLIVAN is a professor of economics at Lewis and Clark College in Portland, Oregon. After receiving his B.S.in economics at the University of Oregon, he spent two years in the Peace Corps, working with cityplanners in the Philippines. He received his Ph.D. in economics from Princeton University in 1981and has taught at the University of California, Davis, and Oregon State University, winning teachingawards at both schools. He is the author of the best-selling textbook "Urban Economics," currently in itsseventh edition.Professor O'Sullivan's research explores economic issues concerning urban land use, environmentalprotection, and public policy. His articles have appeared in many economics journals, including the"Journal of Urban Economics," "Journal of Environmental Economics and Management," "National Tax Journal," "Journal of Public Economics," and "Journal of Law and Economics."Professor O'Sullivan lives with his family in Portland, Oregon. For recreation, he enjoys hiking, kiteboarding, and squash. STEVEN M. SHEFFRINis professor of economics and executive director of the Murphy Institute at Tulane University. Prior tojoining Tulane in 2010, he was a faculty member at the University of California, Davis, and served asdepartment chairman of economics and dean of social sciences. He has been a visiting professor atPrinceton University, Oxford University, London School of Economics, and Nanyang TechnologicalUniversity, and he has served as a financial economist with the Office of Tax Analysis of the UnitedStates Department of the Treasury. He received his B.A. from Wesleyan University and his Ph.D. ineconomics from the Massachusetts Institute of Technology.Professor Sheffrin is the author of 10 other books and monographs and over 100 articles in thefields of macroeconomics, public finance, and international economics. His most recent booksinclude "Rational Expectations "(second edition) and "Property Taxes and Tax Revolts: The Legacy ofProposition 13 "(with Arthur O'Sullivan and Terri Sexton).Professor Sheffrin has taught macroeconomics and public finance at all levels, from general introductionto principles classes (enrollments of 400) to graduate classes for doctoral students. He is therecipient of the Thomas Mayer Distinguished Teaching Award in economics.He lives with his wife Anjali (also an economist) in New Orleans, Louisiana, and has two daughterswho have studied economics. In addition to a passion for current affairs and travel, he plays atough game of tennis. STEPHEN J. PEREZis a professor of economics and NCAA faculty athletics representative at California State University, Sacramento. After receiving his B.A. in economics at the University of California, San Diego, he wasawarded his Ph.D. in economics from the University of California, Davis, in 1994. He taught economicsat Virginia Commonwealth University and Washington State University before coming to CaliforniaState University, Sacramento, in 2001. He teaches macroeconomics at all levels as well as econometrics, sports economics, labor economics, and mathematics for economists.Professor Perez's research explores most macroeconomic topics. In particular, he is interestedin evaluating the ability of econometric techniques to discover the truth, issues of causality inmacroeconomics, and sports economics. His articles have appeared in many economics journals, including the "Journal of Monetary Economics"; "Econometrics Journal"; "Economics Letters"; "Journal ofEconomic Methodology"; "Public Finance and Management"; "Journal of Economics and Business"; "OxfordBulletin of Economics and Statistics"; "Journal of Money, Credit, and Banking; Applied Economics"; and"Journal of Macroeconomics."