Question: What prize was won by the American economist whose life story is included in those in Radicals for Capitalism? 
Context: Edward Nathan Wolff (April 10, 1946) is an American economist whose work concerns wealth and wealth disparity.  He is a professor of economics at New York University. John Maurice Clark (1884–1963) was an American economist whose work combined the rigor of traditional economic analysis with an "institutionalist" attitude.  Clark was a pioneer in developing the notion of workable competition and the theoretical basis of modern Keynesian economics, including the concept of the economic multiplier. Howarth E. "Howdy" Bouis (born October 10, 1950), is an American economist whose work has focused on agriculture, nutrition outcomes, and reducing micronutrient malnutrition, also known as hidden hunger.  He is the founder and former director of HarvestPlus, a global non-profit agricultural research program.  Bouis was awarded the World Food Prize in 2016 for his pioneering work on biofortification. Milton Friedman ( ; July 31, 1912 – November 16, 2006) was an American economist who received the 1976 Nobel Memorial Prize in Economic Sciences for his research on consumption analysis, monetary history and theory, and the complexity of stabilization policy.  With George Stigler and others, Friedman was among the intellectual leaders of the second generation of Chicago price theory, a methodological movement at the University of Chicago's Department of Economics, Law School, and Graduate School of Business from the 1940s onward.  Several students and young professors that were recruited or mentored by Friedman at Chicago went on to become leading economists; they include Gary Becker, Robert Fogel, Thomas Sowell, and Robert Lucas, Jr. Leo Wolman (February 24, 1890 – October 2, 1961) was a noted American economist whose work focused on labor economics.  He also served on a number of important boards and commissions for the federal government. Caroline Minter Hoxby (born 1966) is an American economist whose research focuses on issues in education and public economics.  She is the Scott and Donya Bommer Professor in economics at Stanford University and director of the Economics of Education Program for the National Bureau of Economic Research.  She is also a senior fellow at the Hoover Institution and the Stanford Institute for Economic Policy Research. The theory of Collective Capitalism was advanced by the American economist G. Means in the 1960’s.  It was intended to overcome the failings of traditional capitalism, which failed so spectacularly in the 1930s.  It rejects the principles put forward by Adam Smith, the notion of the "invisible hand" of market forces being self-correcting is not accepted.  Therefore, the theory reflects the process of the capitalist socialization of production, but only in a distorted way.  Japan's Collective Capitalism relies on cooperation, but ignores the determining fact that the ownership of the means of production is still private.  It cannot be considered Socialist because the means of production does not belong to the individual, but rather, it belongs to the corporation, which ultimately aligns more strongly with traditional Capitalism. Roger Hall Gordon (born September 14, 1949) is an American economist whose research deals primarily with taxation.  He graduated from Harvard in 1972 and received a PhD in economics from MIT in 1976.  In 1984, he moved to the University of Michigan, first as an Associate Professor, then Professor, and later as the Reuben Kempf Professor of Economics.  Since 2001, he has been a Professor of Economics at UCSD.  Between 2004 and 2010, he served as the editor of the "Journal of Economic Literature". Radicals for Capitalism: A Freewheeling History of the Modern American Libertarian Movement is a 2007 book about the history of libertarianism in the 20th century by American journalist and "Reason" senior editor Brian Doherty.  He traces the evolution of the movement, as well as the life stories of Ayn Rand, Milton Friedman, Ludwig von Mises, F. A. Hayek, and Murray Rothbard, and details how they intertwined. William (W. Kip) Viscusi (born 1949) is an American economist whose primary fields of research are the economics of risk and uncertainty, risk and environmental regulation, behavioral economics, and law and economics.  Viscusi is the University Distinguished Professor of Law, Economics, and Management at Vanderbilt Law School where he and his wife, Joni Hersch, are the founders and co-directors of the Ph.D.  Program in Law and Economics.
Answer: Nobel Memorial Prize in Economic Sciences