اصلاحات شاخص بر مبنای یورو: مورد شاخص جهانی بازار دویجونز

US firms added to the Dow Jones Islamic Market World Index, a leverage-based index, witness permanent positive price and liquidity effects, whereas excluded firms sustain negative price and liquidity effects but no decrease in the investor awareness. Included/excluded firms experience a significant drop/no change in the cost of equity. Among the deleted firms, those with an increase in debt level bear a more severe decrease in liquidity and institutional ownership, and an increased cost of equity than those firms without an increase in debt use. Conveying private information on changes in a firm's corporate strategy and operating environment, revisions by a leverage-based index are different from those by size-based indexes.