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The Intended and Unintended Consequences of Financial-Market Regulations: A General Equilibrium Analysis

Source:
Journal of Monetary Economics, Vol. 81, pp. 25-43
Year:
2016
Authors:
Adrian Buss,
Bernard Dumas,
Raman Uppal,
Grigory Vilkov
Reseach Area:
Financial Markets
Abstract:

In a production economy with trade in financial markets motivated by the desire to share labor-income risk and to speculate, we show that speculation increases volatility of asset returns and investment growth, increases the equity risk premium, and reduces welfare. Regulatory measures, such as constraints on stock positions, borrowing constraints, and the Tobin tax have similar effects on financial and macroeconomic variables. However, borrowing constraints and the Tobin tax are more successful than constraints on stock positions at improving welfare because they substantially reduce speculative trading without impairing excessively risk-sharing trades.

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