November 21, 2003
Payment clearing and settlement systems
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November 20, 2003
Technical Note: Elimination of Retroactive Settlement in the ACSS
Effective 1 November 2003, the Bank of Canada abandoned its practice of backdating the results of settlement of payments through the Automated Clearing Settlement System (ACSS). It has adopted instead a system of "next-day" settlement under which the results of the settlement process will appear on the central bank's books on the day the items actually settle in the ACSS. Since July 1986, settlement of these items had occurred at noon the day after items were presented for clearing, but the results were recognized on the Bank's books the previous day, through backdating, or "retroactive" settlement. The new system should simplify the payments process and improve the reporting of settlement risk, as well as promote cost-effectiveness within the payments systems. ACSS participants have agreed among themselves to implement an interest-compensation mechanism in order to avoid imposing a float charge on their customer base. -
Excess Collateral in the LVTS: How Much is Too Much?
The authors build a theoretical model that generates demand for collateral by Large Value Transfer System (LVTS) participants under the assumption that they minimize the cost of holding and managing collateral for LVTS purposes. The model predicts that the optimal amount of collateral held by each LVTS participant depends on the opportunity cost of collateral, the transactions costs of acquiring assets used as collateral and transferring them in and out of the LVTS, and the distribution of an LVTS participant's payment flows in the LVTS.