The estimate of the mpp of potash is positive and statistically different from zero 對鉀肥邊際產(chǎn)量的估計是正值,而且統(tǒng)計上顯然不等于零。
However, when the fund returns were adjusted for estimated monthly expenses, the copycat funds outperformed the primitive funds she mimicked in four of the six months, with the spread remaining insignificantly different from zero except in the fourth month 但如果在基金的回報中扣除估計的每月開支,在六個月中有四個月,跟風(fēng)基金的業(yè)績要好于所模仿的原始基金,而且除了第四個月差異為零外,其它五個月的差異也都不明顯。
However, investors'reactions to income-increasing restatements due to errors are not different from zero, suggesting that the perceived failure of the accounting system is just offset by the upward revisions in future cash flow expectations in these cases of income-increasing errors 然而,投資者對因差錯引起收益增加的重述反應(yīng)卻比較平淡,這表明,存在收益增加的差錯時,已被察覺的會計制度失靈恰好被關(guān)于現(xiàn)金流量預(yù)期的上升修正所抵消。