Yuming Fu, Wenlan Qian, Bernard Yeung, 07 November 2013

Financial transaction taxes are designed to raise revenue and stabilise financial markets, but their effect on market volatility is controversial. This column presents evidence from the sudden reintroduction of stamp duty on new housing projects in Singapore. Overall trading volume declined while volatility increased. These effects were strongest for previously underpriced projects, consistent with the hypothesis that informed speculators were more strongly discouraged by the tax than noise traders. This suggests that financial transaction taxes may reduce the informativeness of asset prices.

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