Repositório Colecção: Publicações em Revistas Internacionais (com referee)
https://hdl.handle.net/1822/3299
Publicações em Revistas Internacionais (com referee)2024-03-28T09:27:06ZPecking order theory versus trade-off theory : are service SMEs’ capital structure decisions different?
https://hdl.handle.net/1822/17966
Título: Pecking order theory versus trade-off theory : are service SMEs’ capital structure decisions different?
Autor: Serrasqueiro, Zélia; Armada, Manuel José da Rocha; Maças Nunes, Paulo
Resumo: This paper seeks to analyse if the capital structure decisions of service
small and medium-sized enterprises (SMEs) are different from those of other types of firm. To do so, we consider four research samples: (i) 610 service SMEs; (ii) 126
service large firms; (iii) 679 manufacturing and construction SMEs; and (iv) 132
manufacturing and construction large firms. Using the two-step estimation method,
the empirical evidence obtained in this study shows that the capital structure
decisions of service SMEs are different from those of other types of firm. Service
SMEs’ capital structure decisions are closer to the assumptions of Pecking Order
Theory and further removed from those of Trade-Off Theory compared with the
case of other types of firm.
<b>Tipo</b>: article2012-03-20T17:46:18ZQuantifying the third sector in Portugal: an overview and evolution from 1997 to 2007
https://hdl.handle.net/1822/16123
Título: Quantifying the third sector in Portugal: an overview and evolution from 1997 to 2007
Autor: Carvalho, Ana
Resumo: This paper presents a global overview of the third sector in Portugal drawing on data from a linked employer-employee database – “Quadros de Pessoal”, which is based on a compulsory annual inquiry to organizations, making it a better source of information than those based on sample surveys and estimates. This study advances on previous overviews by providing more updated numbers for organization size, age, gross revenue and employment levels, as well as their distribution across the ICNPO third sector activity classification. The evolution of these variables from the period 1997-2007 is also analyzed.
The Portuguese third sector has been fast growing, with revenues amounting to 5.64% of Portugal’s GDP and employment representing 4% of the country’s employment in 2007. It is mainly composed of very small organizations, with diminutive revenues. Perhaps its most striking features are the uneven distribution of employment and revenue and the strong concentration on Social services.
<b>Tipo</b>: article2012-01-03T14:38:05ZOptimal investiment decisions for two positioned firms competing in a duopoly market with hidden competitors
https://hdl.handle.net/1822/16121
Título: Optimal investiment decisions for two positioned firms competing in a duopoly market with hidden competitors
Autor: Armada, Manuel José da Rocha; Kryzanowsk, Lawrence; Pereira, Paulo Jorge
Resumo: This paper extends the literature dealing with the option to invest in a duopoly market for a
leader-follower setting. A restrictive assumption embodied in the models in the current literature
is that investment opportunities are semi-proprietary in that the two identified or positioned firms
are guaranteed to hold at least the follower’s position. More competition is realistically captured
in our model by introducing the concept of hidden rivals so that the places in the market can be
taken not only by positioned firm but also by these hidden competitors. The value functions and
the optimal triggers for the positioned firms differ materially in settings with(out) the presence of
hidden rivals. Unlike existing models, our model allows for (a)symmetric market shares and
investment costs for the leader and the follower. Cooperative entrance by the two positioned
firms is also modeled.
<b>Tipo</b>: article2012-01-03T14:30:21ZFlexibility through HRM in management consulting firms
https://hdl.handle.net/1822/14523
Título: Flexibility through HRM in management consulting firms
Autor: Carvalho, Ana; Cardoso, Carlos Cabral
Resumo: Purpose – This paper aims to examine how functional and numerical flexibility can be successfully combined without workforce segmentation or flexible employment contracts, by implementing a highly integrated human resource management (HRM) system.
Design/methodology/approach – Six case studies were conducted between January 2002 and June 2003 in Portuguese affiliates of multinational management consulting firms using a grounded theory approach.
Findings – Evidence from the case studies showed that some of these companies were able to explore both functional and numerical flexibility in a combined and interdependent way, by operating a tightly run and highly coordinated set of HRM practices geared towards the development of internal labour markets.
Research limitations/implications – The study uses a sample of large multinational companies in a single sector, which limits the scope of these findings.
Practical implications – It is suggested that a strategy combining numerical and functional flexibility through an integrated set of HRM policies and practices will be more effective than segmenting the workforce or choosing between those two sources of flexibility.
Originality/value – The paper presents a new breadth for the role of HRM in achieving flexibility. Theoretically, it challenges the established notion that commitment-based HRM serves only functional flexibility and that numerical flexibility can only be achieved through precarious employment.
Keywords Human resource management, Skills flexibility, Numerical flexibility, Management consultancy, Case studies
Paper type Research paper
<b>Tipo</b>: article2011-11-21T17:15:14ZStudents' perceptions of blackboard and moodle in a portuguese university
https://hdl.handle.net/1822/14305
Título: Students' perceptions of blackboard and moodle in a portuguese university
Autor: Carvalho, Ana; Areal, Nelson; Silva, Joaquim
Resumo: The use of learning management systems (LMS) has grown considerably in universities around the world. The University of Minho (UM) has pioneered in this area in Portugal, adopting Blackboard as its official LMS. Moodle is also used in UM in scattered initiatives, allowing for interesting comparisons.
Previous studies comparing Blackboard and Moodle have been confined to limited samples and focused on students’ perceptions only. In this paper, we also try to relate those perceptions to the impact of the LMSs on student level of engagement.
We assess the extent and depth of use of the two LMSs, presenting the results of a study of students’ perceptions and experience with both Blackboard and Moodle. Unlike pre- vious studies, more students (46.5%) stated a preference for Blackboard over Moodle, while 34.7% preferred Moodle, and nearly 20% had no preference. Factors that might explain these results are explored in some detail.
By and large, a basic utilisation is made of both platforms, as little more than electronic document repositories, in what Francis and Raftery, in 2005, designate as a Mode 1 level of engagement. We could, however, detect some instances of a more sophisticated Mode 2 utilisation, particularly with Moodle, underlining the role of faculty in integrating a sophisticated use of LMSs when designing their courses.
<b>Tipo</b>: article2011-11-14T15:55:16Z