00323nam a2200109Ia 4500082001900000100001900019110004800038245005100086260002000137300000900157490004700166  a530.1bC573.IN  aShubik, Martin  aCowles Foundation for Research in Economics  aA Further comparison of some models of duopoly  aNew Havenc1967  a33p.  aCowles Foundation Discussion paper no. 217