00294nam a2200121Ia 4500082001900000100002300019245003800042260000900080300001600089490003200105490003000137500000500167  a330.183 B348b  aBaumol, William J.  aActivity analysis in one lessonb  c1958  app. 837-873  vv. 48, no. 5, December 1958  aAmerican Economic Review   a