David M. Simon is a lawyer in Chicago. His father, the economist Julian L. Simon, did path-breaking work concerning the economics of population growth, immigration, natural resources, and the environment, and developed the market-based solution used by airlines to voluntarily resolve overbooking. With his father, Mr. Simon co-authored articles concerning the economics of state liquor distribution systems and the effects of state regulations on liquor prices. Mr. Simon is a graduate of Johns Hopkins University and an honors graduate of the University of Wisconsin Law School.