One-presence policy intends to eliminate duplications of services offered by different types of financial institutions veithin one congiomerate so that financial institutions fully benefit from economy of scale Thus there can only be one deposit-taking institution in a financial institutions fully benefit from economy of scale Thus there can only be one deposit-taking institution in a financial conglomerate. A financial group that possesses more than one deposit-taking institutions bas merge or liquidate units until it has only one deposit-taking channel.