Bod, P.

variance equation estimator return 1.0 5.1 2.0 4.0 mackinlay value ratio 5.2 variance estimators estimators 5.4 5.0 sample 0.9 8.0 hypothesis 10.0 16.0 10.2 1.8 correction table expression correction factors factor equations 12 returns yi equation 5 exchange rates variance ratio tests variance ratios lm estimator variance ratio test 5.3 1.7 32.0 experiment 3.9 2.4 variance estimator 1.1 example martingale hypothesis 9.8 8.9 simulation experiment 1.4 simulation study journal table 1 10.4 10.1 7.9 campbell 7.5 order 20 000 replications 5.5 princeton university press price ® nite samples study q-overlapping data 4.9 5.9 5.6 ® rst term erasmus university rotterdam process 9.7 increase e ciency speci ®c values correction factor c variance ratio displays hypothesis h 0 diverence