55771

55771



lnvestorscannotsystematicallyfind extraordinaryreturns (alpha

Market Efficiency - Reality In a developed market like the United States market-widemovementsexplain only 3 percent of the dailyvariation of individualstock, while in emerging countriessuch as

Taiwan and Poland theyexplain far morę (approximately 40% and 60% )

Whatis not implied?

CommonMisinterpretations stockpricescannotdeviate from true value

° therecan be largedeviations from truevalue, but theyneed to be random, no investorwill 'beat' the market in anytime period

° Approximately half of allinvestorsshould beat

the market in any period.

no group of investorswill beat the

market in the long term

° A group of investorscan beat the market not

because of strategy but becausetheyarelucky.



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