Católica Lisbon Research Unit in Business and Economics (CUBE)
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- Acceptance of traditional and innovative chickpea dishes by Portuguese home cooks: influence of eating habits, cooking skills and cooking confidencePublication . Pereira, J. F.; Costa, A. I. A.; Cunha, L. M.Home cooks’ preferences and skills have a major impact on household food acceptance and intake. The effects of Portuguese home cooks’ eating habits, cooking skills and confidence in cooking legumes on their acceptance of traditional and innovative chickpea starters and entrées were investigated. Forty-three home cooks (24-50 years, 56% women and with higher education) answered an online questionnaire on general food attitudes and behaviour, and were subsequently interviewed about their chickpea dish preferences. They were first shown cards describing classic Portuguese dishes (chickpea and spinach soup, chickpea and vegetable salad, and Rancho - chickpea, pasta and meat stew) and asked to rate them on a 9-point hedonic scale. Next, they were shown cards describing innovative dish prototypes (sprouted chickpea protein soup, sprouted chickpea and vegetable terrine, and a roasted chickpea and meat burger) and asked to rate their willingness-to-try on a 9-point Food Action Rating Scale. Only 42% of participants rated themselves as ‘good home cooks’. Still, almost all were, to some extent, confident they could prepare tasty and healthy meals using legumes. Most of them (~80%) ate legumes frequently (>2x/week), while consuming chickpeas (70%) much less often (<2x/month). Acceptance of the classic Portuguese cuisine dishes was significantly higher than willingness to try the innovative chickpea dishes - 7.5±1.0 and 6.9±0.9, respectively (t(42)=3.12, p=0.003). Particularly, the chickpea and vegetable salad was significantly more liked than the chickpea and vegetable terrine (t(42)=5.16, p<0.01). Findings will help devise strategies for designing new chickpea dishes with high consumer acceptance, thereby contributing to increase legume intake in Portuguese households.
- Adaptação improvisada em equipa: um modelo de adaptação em tempo realPublication . Abrantes, António Cunha Meneses; Passos, Ana Margarida; Cunha, Miguel Pina e; Costa, Patrícia LopesQuando as equipas precisam de se adaptar num contexto de escassez extrema de tempo, elas podem paralisar, podem manter o plano anterior, ou podem improvisar um novo plano. Este último fenómeno consiste na adaptação improvisada em equipa. Sendo um conceito recente, pouco se sabe sobre como as equipas se podem adaptar eficazmente em situações de carência temporal, e como podem produzir conhecimento a partir destes processos. Neste artigo conceptual, desenvolvemos um modelo teórico, baseado num fluxo temporal, o qual contribui para um melhor entendimento da adaptação improvisada. Propomos um conjunto de fatores de influência temporais, moderadores da resposta a estímulos contingenciais, e um conjunto de processos de equipa, fundamentais para a eficácia da adaptação improvisada. Propomos, ainda, que a reflexividade em equipa medeia a relação da adaptação improvisada com a aprendizagem. Ao explorar o fluxo temporal da adaptação improvisada em equipa, estendemos as literaturas de improvisação e de adaptação, aumentando a granularidade dos construtos, alargando a sua rede nomológica.
- Altruism, human capital and environmental preservation in a globalized economyPublication . Bouché, Stéphane; Modesto, LeonorThis paper analyzes the impact of trade openness on education and environmental preservation choices in a two country model where both countries only differ in their shares of skilled workers. Parents may invest in their children's education increasing their probability to become skilled and in maintenance investment in order to preserve present and future environmental quality. Under autarky, unskilled individuals in the skill scarce economy are unable to invest in education due to borrowing constraints. Moreover, only skilled individuals of the latter economy choose to invest in environmental preservation. Openness to trade modifies relative factor prices and increases pollution. This allows for human capital convergence between both economies and induces all skilled individuals to contribute to environmental preservation in the free trade equilibrium. However, overall environmental quality decreases, suggesting a potential trade-off between income convergence at the global level and environmental preservation. We also focus on the optimal allocation under free trade and conclude that a maintenance investment subsidy should be implemented for skilled individuals but not necessarily for unskilled ones.
- An exploratory study of children's pretend play when using a switch-controlled assistive robot to manipulate toysPublication . Adams, Edit Kim D.; Rincón, Adriana M. Rios; Puyo, Lina M. Becerra; Cruz, Javier L. Castellanos; Medina, María F. Gómez; Cook, Al M.; Encarnação, Pedro
- An international survey of perceptions of the 2014 FIFA World Cup: national levels of corruption as a context for perceptions of institutional corruptionPublication . Nezlek, John B.; Newman, David B.; Schütz, Astrid; Baumeister, Roy F.; Schug, Joanna; Joshanloo, Mohsen; Lopes, Paulo N.; Alt, Nicholas P.; Cypryańska, Marzena; Depietri, Marco; Gorbaniuk, Oleg; Huguet, Pascal; Kafetsios, Konstantinos; Koydemir, Selda; Kuppens, Peter; Park, Sanghee; Martin, Alvaro San; Schaafsma, Juliette; Simunovic, Dora; Yokota, KunihiroWe conducted a survey about the 2014 FIFA World Cup that measured attitudes about FIFA, players, and officials in 18 languages with 4600 respondents from 29 countries. Sixty percent of respondents perceived FIFA officials as being dishonest, and people from countries with less institutional corruption and stronger rule of law perceived FIFA officials as being more corrupt and less competent running the tournament than people from countries with more corruption and weaker rule of law. In contrast, respondents evaluated players as skilled and honest and match officials as competent and honest. We discuss the implications of our findings for perceptions of corruption in general.
- Antecedents and consequences of collective psychological ownership: the validation of a conceptual modelPublication . Giordano, Ana Paula; Patient, David; Passos, Ana Margarida; Sguera, FrancescoWe investigate team member feelings of collective psychological ownership (CPO) over teamwork products, the psychological paths that lead to it, and its impact on team workers' evaluations of team effectiveness, turnover intentions, and intentions to champion teamwork products. We focus on the teamwork product as an important target of ownership feelings, building on theories of self-extension, psychological ownership, and team emergent states. In Study 1, we validate measures for three ownership activating experiences (OAE) that have been proposed as paths to CPO (control over, intimate knowledge regarding, and investment in the teamwork product) using two samples of individual team workers (n = 210 and n = 140). In Study 2 (n = 183) and Study 3 (n = 200), we use surveys and a multiwave design to show that team workers' feelings of CPO mediate the relationship between investment in and intimate knowledge regarding the product and team effectiveness evaluations, team turnover intentions, and intentions to champion the work product. In Study 4 (n = 48 teams), CPO was predicted by the ownership activating experiences, at the team level. This research additionally highlights the benefits to organizations of creating conditions for the emergence of employee feelings of shared ownership over teamwork products.
- Antecedents and consequences of collective psychological ownership: the validation of a conceptual modelPublication . Giordano, Ana Paula; Patient, David; Passos, Ana Margarida; Sguera, Francesco
- Antidiabéticos orais e internamentos atribuíveis à diabetes em PortugalPublication . Gouveia, Miguel; Laires, Pedro; Borges, Margarida; Augusto, Margarida; Martins, Ana PaulaIntrodução: O crescimento da despesa com antidiabéticos orais tem levado a preocupações questionando os ganhos de saúde e vantagens para o sistema de saúde gerados por esses medicamentos. Este estudo contribui para responder a estas questões.Material e Métodos: Numa primeira fase apresentam-se estimativas das três variáveis centrais a utilizar na análise: 1) a prevalência tratada da diabetes por ano e por região de saúde baseadas nos consumos de antidiabéticos orais, 2) o número de episódios de internamento hospitalar atribuíveis à diabetes com base nos riscos relativos das várias patologias e os seus custos e 3) uma caracterização quantitativa dos antidiabéticos orais consumidos através do cálculo da sua vintage média. Através do uso de observações para 10anos e cinco regiões, perfazendo um total de 50 observações, foi possível estimar um modelo econométrico explicando estatisticamente os internamentos e os custos hospitalares atribuíveis à diabetes por características regionais, pela prevalência tratada e pelavintage média dos antidiabéticos orais. Resultados: Os resultados dos modelos de regressão múltipla mostram que as despesas hospitalares são proporcionais à prevalência tratada, tudo o mais constante mas que quanto mais recente for a vintage dos antidiabéticos orais usados menores são os custos hospitalares. Os efeitos para o número de internamentos são similares. Discussão e Conclusões: Para uma observação média na amostra, se a vintage média dos antidiabéticos orais fosse um ano superior então os custos hospitalares seriam 5,3% inferiores (cerca de € 11 milhões em 2009) e o número de internamentos seria 3,8% menor (cerca de menos 3965 episódios em 2009). Um exercício contra factual permite estimar que para o ano de 2009 a introdução da classe dos inibidores de DPP IV permitiu reduzir o número de internamentos atribuíveis à diabetes em 8480 e com isso poupar €23,3 milhões em custos hospitalares.
- Artificial intelligence for algorithmic trading digital assets: evidence from the Counter-Strike 2 skin marketPublication . Guede-Fernández, Federico; Wagle, Yash; Dias, Pedro; Giordano, Ana Paula; Henriques, Lúcio; Costa, Gonçalo; Azevedo, SaloméIntroduction: The Counter-Strike 2 skin market has developed into a multi-billion-dollar digital asset ecosystem, characterized by high volatility, low liquidity, and pricing inefficiencies that differ substantially from traditional financial markets. Despite the growing economic relevance of virtual items, no previous study has systematically examined the use of artificial intelligence for skin trading. Methods: This work designs and evaluates an automated trading system that applies deep learning models, specifically Long Short-Term Memory networks and Neural Hierarchical Interpolation for Time Series, to forecast skin prices and guide trading decisions. A dataset of 12,000 unique skins from the Steam Market, covering the period from May 2024 to April 2025, was collected using the CSGOskins.gg application programming interface. To reflect real market conditions, the trading strategy incorporated the Steam Market restrictions of a seven-day minimum holding period and a ten percent transaction cost, and was benchmarked against a traditional buy-and-hold strategy. Backtesting was performed multiple time horizons of two, three, and 6 months. Portfolio selection was based on risk and return criteria, including a Sharpe ratio greater than one, a Sortino ratio greater than two, and a return on investment above five percent. Results: Artificial intelligence consistently outperforms buy-and-hold, particularly in smaller, more concentrated portfolios and over longer time horizons. For example, in 6-month simulations, artificial intelligence portfolios achieved returns approaching 20%, compared to 5% to 10% for buy-and-hold, with excess returns as high as 75% in small portfolios. Larger portfolios reduced absolute returns but improved risk-adjusted performance, confirming that diversification enhances stability while diluting raw profitability. Analysis of portfolio composition by rarity further revealed that artificial intelligence favors moderately rare and liquid skins such as Mil-Spec, resembling mid-cap equity investment strategies, while buy-and-hold accumulates rarer skins, analogous to small-cap holdings that rely on scarcity premiums. Discussion: These findings highlight that even in virtual goods markets, the trade-offs between return, risk, and diversification reflect established principles of modern portfolio theory. The study demonstrates both the feasibility and the potential of artificial intelligence-based trading systems in the Counter-Strike 2 skin economy, contributing methodological advances and practical insights for participants in this emerging digital asset market.
- Assistive technologies as rights enablersPublication . Encarnação, Pedro; Cook, Albert M.The Convention on the Rights of the Child and the Convention on the Rights of Persons with Disability establish the rights for all children. For some children, enjoying those rights depends on or is facilitated by assistive technology, that is, products adapted or designed for improving the functioning of disabled people and all services inherent to the selection, acquisition, and use of assistive products. This chapter reviews the definition of assistive technology and briefly describes assistive products categories to show the breadth of assistive products available. It then discusses children rights and how they can be mediated or moderated by assistive technologies. Some of the challenges and ethical issues of assistive technology provision for children are also examined.