Continuous Linked Settlement An Empirical Approach Alexandra Schaller1 University of Zurich March, 2008 1Please send all correspondence to: Swiss Banking Institute, University of Z¨urich, Plat- tenstrasse 14, 8032 Z¨urich, Switzerland, tel: +41 44 634 39 64, fax: +41 1 634 49 03, e-mail:
[email protected]. Abstract The international foreign exchange market is the largest market in the world. The reliability and resilience of its post-trade processes is critical. The work on hand is dedicated to the problems arising in foreign exchange settlement and in particular presents the industry's prevailing solution to these problems: Contin- uous Linked Settlement (CLS). CLS Bank, located in London and New York, is a settlement institution that is operated based on a payment-versus-payment mechanism that eliminates credit risk exposures during settlement. The work on hand offers an empirical approach to three different aspects of CLS. First, it assesses CLS's achievement of its main goal, the reduction of credit risk in for- eign exchange settlement. Based on publicly available data, it is estimated that the credit risk reduction amounts to about 60 to 75 percent, which may well be interpreted as a success. Second, an analysis of the trade relations among CLS' participants provides insights into the characteristics of the system's member structure. Measuring and visualizing the network topology of the trade relations indicates that there are substantial differences in connectivity between the two different member states, i.e. settlement members and third parties. The identi- fication of these differences may help the industry to adequately structure their membership conditions to achieve an optimal level of participation.