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Repositório Institucional da Universidade NOVA de Lisboa
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Effects of a monetary union on a small peripheral country: stabilization and competitiveness in Portugal
Publication . Castro, Henrique Moreira da Silva de Oliveira; Corado, Maria Cristina
The first decade of the 21st century introduced the euro in Portugal. This step towards European integration implied that Portuguese economic authorities lose monetary independence. We investigate the impact of that loss in Portuguese competitiveness through the construction of competitiveness indicators, and on current account dynamics trough a decomposition of the current account. Despite the continuous loss of competitiveness after 1999, empirically we don’t find
evidence that the euro is contributing to it. We do find evidence that current account adjustment pattern changed after 1999.
The impact of type of language and number of reasons of purchased intent
Publication . Botelho, Eduardo Taborda Ferreira; Wilde, Els de
In many industries, as competition gets more intense, differentiation becomes increasingly more important and brands need to communicate their product advantages. There are many different ways of communicating product benefits, and many firms choose to use very specific technical terms in their communication. An experiment was conducted, replicating a real decision making situation, using claims with daily versus technical language and manipulating the Number of Reasons presented to support the
product’s benefit. Then, Purchase Intent was measured according to the claim used. Results indicate that, for low involvement products, the use of technical terms without explaining them, as well as presenting one versus two reasons, has no impact on Purchase Intent. Results are discussed.
Stage matters in complex life cycles
Publication . Missionário, Madalena; Parodi, Bianca Allegra; Calado, Ricardo; Costa, Pedro M.; Dupont, Sam; Madeira, Diana; DCV - Departamento de Ciências da Vida; UCIBIO - Applied Molecular Biosciences Unit; Elsevier Science B.V., Amsterdam.
Understanding how shallow marine species cope with ocean warming is essential for developing climate-smart conservation strategies. Realistic projections require detailed knowledge of thermal limits across life stages, since these can vary with development, sex and reproductive status. However, most thermal tolerance studies focus exclusively on adults, potentially underestimating species vulnerability. To address this gap, we examined the thermal tolerance of the ditch shrimp Palaemon varians , across its full life cycle through a Critical Thermal maximum (CTmax) experiment, integrating different developmental stages (Zoea 1-5, Postlarvae and Adult), while accounting for sex (Males vs. Females), and female reproductive status (Ovigerous, Spent and Immature). Early larval stages (Zoea 1- 3) exhibited lower CTmax (36.7, 37.1 and 36.8 °C, respectively) than later stages (Zoea 4- 5, Postlarvae and Adults), with Postlarvae (37.9 °C) showing the highest values. Larval development represents a bottleneck for this species' thermal tolerance. The largest increase was observed after the transition from larval life to the postlarvae stage (1.9 %), indicating that this life stage represents a physiological milestone in the acquisition of thermal tolerance in this species. Females were generally more sensitive to heat than males (37.7 °C), with those that had released their larvae recently (spent females 37.2 °C), showing the lowest CTmax values, indicating a potential energetic cost associated with reproduction. Overall, our findings show that focusing solely on adult thermal limits overlooks key vulnerabilities across development and reproduction. Integrating these factors provides a more realistic assessment of shallow-water species’ tolerance to global warming.
The impact of online brand community on electronic word-of-mouth communications
Publication . Beirão, Bernardo de Figueiredo Mateus Teixeira; Wilde, Els de
Through brand communities, people share essential resources that may be cognitive, emotional and material in nature. They have been cited for their potential not only to enhance the loyalty of members but also to engender a sense of oppositional loyalty towards competing brands. This project explored how brand consumers belonging versus not belonging to a brand community; evaluate electronic word-of-mouth messages about the latest product released by Apple, the iPad. Each participant was exposed to a positive or negative product review and then surveyed. Evidence suggests that positive and negative consumer online recommendations provoke stronger reactions inside members of the community.
When do trade reforms imply larger poverty reductions?
Publication . Batista, Rodrigo dos Santos; Silva, André Castro
I study the group of countries who conducted the largest tariff reductions of the late 1980’s to analyse the relationship between trade reforms and different poverty reductions. I find that countries with larger reductions in poverty are associated with higher labour to land ratio, lower capital to labour ratio, negative trade balance and better legal systems. I find that W.T.O. participation is not relevant to poverty reductions. I also find that changes in exports good’s prices can affect the countries poverty. Econometric analysis although supporting the coefficients signs fails to provide significant results.