Does Central Clearing Affect Price Stability Evidence from Nordic Equity MarketsReportar como inadecuado

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1 VU University Amsterdam 2 Imperial College Business School London 3 DRM - Dauphine Recherches en Management

Abstract : We provide evidence of the effects of introducing a central clearing counterparty CCP on price stability by adopting as an experimental construct the 2009 clearing reform in three Nordic equity markets. We find that the daily price volatility of the affected equities experience an economically significant decline of 8.8% relative to pre-reform levels. The decrease in volatility is more pronounced for stocks with a higher margin cost impact, consistent with the predictions of dynamic asset pricing models. We also find that the reform induces a sharp decline of 9.8% in trade volume but no deterioration in market quality as captured by trading costs and information measures. Overall, our results suggest that the adoption of central clearing enhances price stability. Our results also suggest an important coordination role for policy in implementing clearing reforms, since investors failed to voluntarily clear trades in the CCP when given the option.

Keywords : counterparty risk margin requirement Central clearing price stability equity volatility liquidity

Autor: Albert Menkveld - Emiliano Pagnotta - Marius Andrei Zoican -



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