“…Rottenberg was an early contributor, but he was not alone during the 1960s and 1970s in his efforts to create a rational conceptual framework for evaluating alternative public policy investments (e.g., where to focus intervention resources). Readers will benefi t from a review of contemporaneous contributions by Erickson (1969) , Greenwood (1971) , Koch and Grupp (1971) , Nisbet and Vakil (1972) , Phares (1973) , Eatherly (1974) , Yeager (1975) , Votey andPhillips (1976) , andBernard (1983) as well as more recent work from Jonathan Caulkins and his colleagues (e.g., Caulkins, Feichtinger, Tragler, & Wallner, 2010 ). Some of these contributions were fairly narrow in scope, as with Greenwood ' s attempt to estimate prevalence of drug use.…”