In this paper we discuss the effects of a Transaction Tax on an artificial market with varying liquidity where a large number of agents can trade a share of a risky asset. A market maker is in charge to optimally set the level of taxation in order to obtain a desired mixture of activity and volatility. We show that, depending on the liquidity of the market, two possible regimes of optimal taxation emerge: a non-negligible level of taxation for highly liquid markets and low (close to zero) levels of taxation for low liquidity markets. This outcome resembles the two-tier rate structure discussed by Spahn in his famous contributions (see [1]).
CITATION STYLE
Liuzzi, D., Pellizzari, P., & Tolotti, M. (2017). Optimality of a two-tier rate structure for a transaction tax in an artificial market. In Communications in Computer and Information Science (Vol. 722, pp. 95–106). Springer Verlag. https://doi.org/10.1007/978-3-319-60285-1_8
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