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Can a Financial Transaction Tax Prevent Stock Price Booms?

Klaus Adam (), Albert Marcet (), Sebastian Merkel and Johannes Beutel

No 840, Working Papers from Barcelona Graduate School of Economics

Abstract: We present a stock market model that quantitatively replicates the joint behavior of stock prices, trading volume and investor expectations. Stock prices in the model occasionally display belief-driven boom and bust cycles that delink asset prices from fundamentals and redistribute considerable amounts of wealth from less to more experienced investors. Although gains from trade arise only from subjective belief differences, introducing Â…financial transactions taxes (FTTs) remains undesirable. While FTTs reduce the size and length of boom-bust cycles, they increase the likelihood of such cycles, thereby overall return volatility and wealth redistribution. Contingent FTTs, which are levied only above a certain price threshold, give rise to problems of equilibrium multiplicity and non-existence.

Keywords: financial transactions tax; Tobin tax; asset price booms (search for similar items in EconPapers)
JEL-codes: G12 D84 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cfn and nep-fmk
Date: 2015-07
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Journal Article: Can a financial transaction tax prevent stock price booms? (2015) Downloads
Working Paper: Can a Financial Transaction Tax Prevent Stock Price Booms? (2015) Downloads
Working Paper: Can a financial transaction tax prevent stock price booms? (2015) Downloads
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