00290    a2200109   4500020001500000082002000015100002700035245003300062260004800095300002000143650001700163  a0195043464  a330.015195bDOU  aDougherty, Christopher  aIntroduction to economitrics  aOxfordbOxford University Pressc1992g1992  axii,399p.c23cm  aEconometrics