(1)它是競(jìng)爭(zhēng)收益明顯大于競(jìng)爭(zhēng)成本的競(jìng)爭(zhēng); (2)有效競(jìng)爭(zhēng)是一種適度競(jìng)爭(zhēng); (3)有效競(jìng)爭(zhēng)符合規(guī)模經(jīng)濟(jì)要求。