Nicolaus Tideman received his doctorate from the University of Chicago. He was Assistant Professor of Economics at Harvard University (1969-73) and then Senior Staff Economist at the President's Council of Econmic Advisors (1970-71), before moving to Virginia Polytechnic Institute & State University, as Professor of Economics. Fred Harrison read Philosophy, Politics and Economics at the University of Oxford, and received his MSc from the University of London. In The Power in the Land (1983) he correctly predicted the global recession of 1991 and in Boom Bust that of 2009. He is Director at the Land Research Trust. During the 1990s he was an advisor to Russian municipal governments and federal agencies on property and taxation reforms. Mason Gaffney received his doctorate from the University of California (Berkeley). He was Professor of Economics, University of California, Riverside (1976-2013). He is the author of an extensive list of studies on urban economics and public finance and several books, most recently The Mason Gaffney Reader: Essays on Solving the " Unsolvable" .