Do Terrorist Attacks Polarize Politicians? Evidence from the European Parliamentary Speeches on Migration

Hana Jomni () and Nikita Zakharov ()
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Nikita Zakharov: Department of International Economic Policy, University of Freiburg

Discussion Paper Series from Department of International Economic Policy, University of Freiburg

Abstract: We study the effect of terrorist attacks on the migration discourse in the European Parliament (EP). First, using an LLM model, we develop an original dataset on sentiments of all parliamentary speeches concerning migration for 2009-2019, building on a novel dataset by Sylvester et al. (2023). Second, following Brodeur (2018), we employ a causal identification strategy based on quasi-natural randomization in the success or failure of terrorist attacks. We find that while a successful terrorist attack does not change the overall migration sentiment, it has heterogeneous effects conditional on the political position of the speaker: left-wing and, to a lesser extent, centrist politicians become more favorable toward migration after successful attacks, while the right-wing politicians become more negative. Politicians of different ideologies adjusting migration-related sentiment in a direction aligned with their pre-existing partisan positions indicate an increasing polarization among policymakers as a direct consequence of terrorism.

Keywords: Terrorist attacks; migration politics; sentiment analysis; European Parliament; polarization. (search for similar items in EconPapers)
Pages: 16 pages
Date: 2024-11, Revised 2024-11
New Economics Papers: this item is included in nep-mig and nep-pol
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