久留米大学英語2013年第2問
Paradoxes of consequences have long fascinated students of human behavior. What (1)[(a) may have (b) we do (c) we intend (d) as human actors (e) outcomes (f) from those (g) quite distinct]. The maxim, "private vices, public benefits," one way of expressing this phenomenon, became the mainstay of classical economics. The pursuit of naked self-interest, in the context of a competitive market, supposedly serves the ends of the community as a whole.
In recent years, theories of paradoxical consequences have been strongly influenced by game theory, which indeed is (2)[(a) its name (b) while (c) away many (d) often true to (e) in providing puzzles (f) enough to (g) intriguing] an hour. Consider a situation in which individual participants, each making rational decisions in respect of their interests, (3)[(a) actually run (b) produce (c) counter (d) consequences (e) which (f) those interests (g) to].