Print Email Facebook Twitter Moral rhetoric in discrete choice models Title Moral rhetoric in discrete choice models: a Natural Language Processing approach Author Szép, T. (TU Delft Transport and Logistics) van Cranenburgh, S. (TU Delft Transport and Logistics) Chorus, C.G. (TU Delft Industrial Design Engineering; TU Delft Engineering, Systems and Services) Faculty Industrial Design Engineering Department Engineering, Systems and Services Date 2023 Abstract This paper proposes a new method to combine choice- and text data to infer moral motivations from people’s actions. To do this, we rely on moral rhetoric, in other words, extracting moral values from verbal expressions with Natural Language Processing techniques. We use moral rhetoric based on a well-established moral, psychological theory called Moral Foundations Theory. We use moral rhetoric as input in Discrete Choice Models to gain insights into moral behaviour based on people’s words and actions. We test our method in a case study of voting and party defection in the European Parliament. Our results indicate that moral rhetoric have significant explanatory power in modelling voting behaviour. We interpret the results in the light of political science literature and propose ways for future investigations. Subject Discrete choice modelsMoral Foundations TheoryMoral rhetoricNatural Language Processing To reference this document use: http://resolver.tudelft.nl/uuid:f886a863-6e06-4af2-a0c9-8a5217259436 DOI https://doi.org/10.1007/s11135-023-01625-8 ISSN 0033-5177 Source Quality and Quantity: international journal of methodology, 58 (1), 179-206 Part of collection Institutional Repository Document type journal article Rights © 2023 T. Szép, S. van Cranenburgh, C.G. Chorus Files PDF s11135_023_01625_8.pdf 1.48 MB Close viewer /islandora/object/uuid:f886a863-6e06-4af2-a0c9-8a5217259436/datastream/OBJ/view