00279nam a2200121Ia 4500020001500000082002200015100001700037245004300054260003500097300001500132500000500147700000500152  a072043047X  a338.508bAr778.ET  aArrow, K. J.  aEssays in the theory of risk bearingb  aAmsterdambNorth-Hollandc1970  avii, 276p.  a  a