000K utf8 1100 $c2010 1500 eng 2050 urn:nbn:de:gbv:8:3-2025-00459-4 2051 10.5018/economics-ejournal.ja.2010-8 3000 Demary, Markus 4000 Transaction Taxes and Traders with Heterogeneous Investment Horizons in an Agent-Based Financial Market Model$hWalter de Gruyter GmbH [Demary, Markus] 4030 $nWalter de Gruyter GmbH 4209 This agent-based financial market model is a generalization of the model of Westerhoff (The Use of Agent-Based Financial Market Models to Test the Effectiveness of Regulatory Policies) by traders who are allowed to have different investment horizons as introduced by Demary (Who Does a Currency Transaction Tax Harm More: Short-Term Speculators or Long-Term Investors?). Our research goals are, first, to study what consequences the introduction of heterogeneous investment horizons has for agent-based financial market models, and second, how effective transaction taxes are in stabilizing financial markets. Numerical simulations reveal that under sufficiently small tax rates traders abstain from short-term trading in favour of longer investment horizons. This change in behavior leads to less volatility and less mispricings. When the tax rate exceeds a certain threshold, however, mispricings increase as also found in Westerhoff (Heterogeneous Traders and the Tobin Tax and The Use of Agent-Based Financial MarketModels to Test the Effectiveness of Regulatory Policies). This emergent property is due to the fact that taxation reduces short-term fluctuations and causes longer lasting trends in the exchange rate. As a result, the longer term fundamentalist trading rule becomes unpopular in favor of the longer term trend-chasing rule. 4950 https://doi.org/10.5018/economics-ejournal.ja.2010-8$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2025-00459-4$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/macau_mods_00005991 5051 330 5550 Agent-based models 5550 financial Markets 5550 financial market stability 5550 fundamental analysis 5550 regulation 5550 technical analysis 5550 transaction taxes