STEVEN N. DURLAUF has edited another edition of The New Palgrave Dictionary of Economics, established as the leading reference work in the field. Durlauf is the Kenneth J. Arrow Professor of Economics at the University of Wisconsin at Madison, USA. He has served as Co-Director of the Economics Program at the Santa Fe Institute for which he currently serves as a Science Board and external faculty member. A Fellow of the Econometric Society, Durlauf's research covers a range of topics in macroeconomics, econometrics, and income inequality. The second edition will retain many individual classic essays of enduring importance from its predecessor plus over one thousand new or heavily revised articles.