TY - UNPD A1 - Pagano, Michael S. A1 - Peng, Lin A1 - Schwartz, Robert A. T1 - The quality of price formation at market openings and closings: evidence from the Nasdaq stock market T2 - Center for Financial Studies (Frankfurt am Main): CFS working paper series ; No. 2008,45 N2 - Central counterparties (CCPs) have increasingly become a cornerstone of financial markets infrastructure. We present a model where trades are time-critical, liquidity is limited and there is limited enforcement of trades. We show a CCP novating trades implements efficient trading behaviour. It is optimal for the CCP to face default losses to achieve the efficient level of trade. To cover these losses, the CCP optimally uses margin calls, and, as the default problem becomes more severe, also requires default funds and then imposes position limits. T3 - CFS working paper series - 2008, 45 KW - Opening Price KW - Closing Price KW - price discovery KW - Intra-Day Volatility KW - Market Microstructure KW - Equity Markets KW - Call Market KW - Nasdaq KW - Zentraler Kontrahent Y1 - 2008 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/6188 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-62240 ER -