Margin Changes and Futures Trading Activity: A New Approach
46 Pages Posted: 17 Jan 2008
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Margin Changes and Futures Trading Activity: A New Approach
Margin Changes and Futures Trading Activity: A New Approach
Date Written: January 1, 2008
Abstract
The paper examines the impact of margins, adjusted for underlying price risk proxied by market volatility, on trading volume and at the same time incorporates the relationship between trading volume and price volatility documented in equities and futures markets. The study estimates bivariate GARCH-M models to take account of the inter-relationships and applies them to the Greek derivatives market over the period 1999-2005. The results show that when adjusting margins for market risk there is no impact on trading volume, casting doubts on the results of previous research, and providing support for the view that margin requirements are used only as a mechanism to prevent trader default.
Keywords: Margin Requirements, Financial Market Volatility-Volume, Athens Stock Exchange
JEL Classification: G1, G14, G18
Suggested Citation: Suggested Citation
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