ESTiG - Artigos em Revistas Indexados à WoS/Scopus
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- 2024 U.S. presidential elections: An event study for U.S. and non-U.S. fossil fuel and renewable listed firmsPublication . Martins, António Miguel; Albuquerque, Bruno; Sardinha, Luís; Moutinho, NunoThis study examines the short-term market effect of Donald Trump' victory in the 2024 US presidential election on largest US and non-US listed worldwide fuel fossil and renewable firms. Employing an event study methodology, we observe a negative and statistically significant stock price reaction for worldwide renewable listed firms. An analysis by economic zones reveals the existence of negative abnormal returns for renewable energy firms in the US, Europe, India and in the rest of the world. In the case of China, abnormal returns are not statistically significant. With respect to worldwide fossil fuel listed firms, abnormal returns are generally not statistically significant. However, regarding US firms, we observe positive and statistically significant abnormal returns. These abnormal returns are explained by the change of US energy policy (pro-oil and gas policy) and the expected cut in subsidies and lower profitability of investments in green energies. Finally, our study provide insight into which firm-specific characteristics emerge as value drives around US presidential elections. The results show that despite the change in environmental policy in the US, favourable to fossil energy, the stock markets reward firms with high environmental ratings. Overall, our results indicate that 2024 US presidential election, for implying a change in US energy policy, has relevant policy implications for energy listed firms.
- A thematic literature review on politicians’ use of financial and non-financial information: Insights and future directionsPublication . Jorge, Susana; Silva, Adriana; Nogueira, Sónia P.This article provides a qualitative overview of literature on politicians’ use of financial and non-financial information over recent decades. Key themes include performance management, accountability, usability, and political decision-making and governance. While research has advanced in understanding how politicians use such data, gaps remain. Under-explored areas include trust in information, financial literacy among politicians, the impact of information design and presentation, and the growing influence of digital technologies and real-time data access on financial and non-financial information use by politicians. © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.