“…The major difference is that their behavioral model is more refined and their purpose was primarily to develop an economic theory of "addiction," which is a general concept intended to suggest a tie between current and future consumption of a good or activity. In contrast to Lee and Kreutzer (1982), Becker and Murphy (1988) suggest their analysis may explain, for example, the differences in the consumption behavior of young and old, the tendency of overweight people to go on "crash diets" even when they may only want to lose a modest amount of weight, or alcoholics who become "teetotalers" when they decide to curtail their drinking. Old people may be less concerned about addictive behavior, everything else held constant, than the young.…”