ENIDH - GP/GTL - Artigo Científico
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- The Impact of Port Community Systems (PCS) Characteristics on PerformancePublication . Caldeirinha, V.; Felício, J. A.; Salvador, A.; Nabais, J.; Pinho, T.The purpose of this study is to assess the effect of the port community system (PCS) and its influence on port performance. The techniques of principal component analysis and structural equation modelling are applied to 153 valid responses from a sample, obtained from Portuguese port community experts. The results identify and measure the factors that characterize the PCS and affects port performance. PCS characteristic, including service level, partner network, ship services, cargo services, logistics services and advanced services, affect port per formance, defined as operational performance, effectiveness and efficiency. The primary contribution of this study is to show the mechanisms that allow ports to adjust and evolve the PCS characteristics and develop new features that affect port performance.
- Ambidextrous capacity in small and medium-sized enterprises.Publication . Felício, J. Augusto; Caldeirinha, Vítor; Dutra, AdemarThis study examines the ambidextrous capacity—the ability to respond simultaneously to both disruptive and incremental innovation processes—of small and medium-sized enterprises (SMEs) in Portugal. The purpose is to understand the organizational ambidexterity of SMEs and its relationship to organizational performance and innovation capacity. The objectives are to evaluate the characteristics that identify ambidextrous organizations and analyze the effect of organizational ambidexterity on performance, supported by the contingency-based approach, organizational theory, behavioral theory of the firm, and organizational learning theory. After factor analysis is performed, a structural equations model is used to analyze a sample of 202 valid responses. The analysis shows that, for SMEs, disruptive innovation factors relate mainly to innovation capacity and incremental innovation factors relate to organizational performance. The confirmation of organizational ambidexterity in SMEs and the increased recognition of the importance of disruptive innovation are relevant contributions to the literature.
- The nexus between port governance and performancePublication . Caldeirinha, Victor; Felício, J. A.; Cunha, S.; Luz, L. M.The diversity of port governance models in the world, sometimes even within the same country, has aroused the interest of researchers. This study is based on contingency theory to support the port governance model. The purpose is to understand the port governance model and the relation with port performance. There are three objectives: to analyze the port governance mechanisms; to analyze the port performance factors; and to understand the influence of the governance model mechanisms on port performance. A factorial analysis was used to determine the main components, and the methodology of the structural equation model was used to analyze a survey sample of 105 valid responses from specialists and managers of port user’s companies that operate in the main Portuguese ports. This study demonstrates that port governancemodel influences directly the port performance. The main contribution of this paper to the literature is providing a set of factors that public managers may decide when changing the characteristics of the port governance models to ensure their performance. It was also observed the approximation of the port expert vision of port governance with models described in literature.
- Government policies and portuguese port governance in the period from 2005 to 2015Publication . Caldeirinha, Victor; Felício, J. A.; Cunha, S.This research focuses on the effect of Portuguese government policies in port management, port strategy and port performance in the period from 2005 to 2015. With the structural equation modeling, we analyzed a sample of 172 observations. Government policies influence the port sector differently. The policies adopted during the period under study produced different effects, especially the national planning policies for investments as well as the central control policy, implemented to make operations and port labor more productive. The main contribution of this paper resides in understanding that it is essential to ensure sustainability conditions for the national port system in an increasingly globalized market where the trend is to be less dependent on the government policies.
- Sustainable tourism financial feasibility: a case study in Timor-Leste.Publication . Ferreira de Matos, AldaRecent research points out the importance of diaspora in the tourism sector and the shift happening in the tourism business model in insular countries. Lately, the demand for the niche of ecocultural tourism has been increasing, while the appearance of new construction techniques has powered the appearance of tourism facilities dierent from traditional hotels. An example of this phenomenon is Timor-Leste, where local authorities encourage tourism development to be on small sustainable facilities, the so-called boutique hotels. Nevertheless, the relevant literature does not address the nancial feasibility of this type of tourism facility. Following the expectations of national Timorese authorities regarding the type of facilities to be installed in their territory, a case study on a boutique facility project is presented in this paper. Using a discounted cash ow valuation model this case study's Net Income would be positive at the end of the 5th year of activity, when the break-even occurs, even considering small scale and ensuring environment protection exigencies.
- Ordinary differential equations with point interactions: An inverse problemaPublication . Dias, N.C.; C., Jorge; Prata, J.N.We study a class of linear ordinary differential equations (ODEs) with distributional coefficients. These equations are defined using an intrinsic multiplicative product of Schwartz distributions which is an extension of the Hörmander product of distributions with nonintersecting singular supports (Hörmander in The analysis of linear partial differential operators I, Springer, Berlin, 1983). We provide a regularization procedure for these ODEs and prove an existence and uniqueness theorem for their solutions. We also determine the conditions for which the solutions are regular and distributional. These results are used to study the Euler–Bernoulli beam equation with discontinuous and singular coefficients. This problem was addressed in the past using intrinsic products (under some restrictive conditions) and the Colombeau formalism (in the general case). Here we present a new intrinsic formulation that is simpler and more general. As an application, the case of a non-uniform static beam displaying structural cracks is discussed in some detail.
- Cruises tourism in Lisbon: the impact on the portuguese economy.Publication . Mendes, Zorro; Mendes, Dulce; Delgado, Olga; Fabrizio Serra editoreThis paper aims to demonstrate the broad impact of demand for goods and services on the Portuguese economy, made by cruise tourists who stop over in the Port of Lisbon. The paper applies the input-output matrix methodology in order to measure both direct and indirect effects on the Portuguese economy. Based on the most updated data available (2016), it is shown that direct demand exerted by cruise tourists in Lisbon, in the total amount of EUR 17,799,011, limited to certain activity sectors, spreads across all sectors of the national economy, by inducing to a dynamic in total national production, reaching EUR 29,329,662 (which can be quantified for each of the 62 activity sectors considered in the input-output matrix).
- Demand of Mozambique seaportsPublication . Barros, C.P.; Zorro, M. J.; Mendes, Dulce; Delgado, OlgaThis paper presents an Analysis of Mozambique seaports from 2001-2015 using the Anderson, De Palma and Thisse’s ideal type demand model. The seaports of Mozambique serve not only Mozambique but also other countries without acess to sea. For example Beira seaport as a specific train line to Zambia. The ideal type model of Anderson, Palma and Thisse is a model of heterogenous seaports that is estimated in two steps and accounts for endogeneity of the price. The results reveal that the seaport market share increases with income and with the price of container cargo, while decreases with the price of maritime transport services and the price of truck transportation.. The price is endogenous in demand equation and the endogeneity is taken into account in the demand estimation. The price of trucks has a negative coefficient and therefore is a complementary good. Demand elasticities are presented. A robustness test is done estimating also the Berry, Levinsohn, and Pakes approach and comparing the results.
- Induced accident in the maritime sinister of Costa ConcordiaPublication . Oca, Reynaldo Montes de; Madariaga, E.; Delgado, Olga; García, SergioThis study determined by the theory of the Maritime Accidents the causal factors that led to the catastrophe of the passenger´s vessel Costa Concordia. In the study we've applied the key elements of such theory, as they are the pressure of production and/or the pressure of technological advances, acting on the individual risk homeostasis of the operator. After performing this analysis, we set up a discussion in which we have established that this case meets the foundations of the induced maritime accidents (strong core, protector ring, positive and negative heuristics) and the existence of the key elements as were the captain and the first mate. It was established conclusions that these foundations are combined and accumulated in such a way that caused the rupture of the margin of safety, leading to the inevitable. If he had managed to maintain a margin of safety permissible, the sinister passenger vessel Costa Concordia would have been avoided.
- Marine pollution in the nautical seaports in Croatia by the effluent of touristsPublication . Andres, M. A.; E., Madariaga; Delgado, O.; Martinez, J. E.The objective of this paper is to define the strategy to be followed to improve and develop nautical tourism in Croatia, taking into account all the factors involved in this activity, with the main importance of protecting the environment and establishing the lines to be followed to respond to the entire demand and for economic development.Nautical tourism seaports make an open, dynamic and complex system which has been rapidly evolving, this is the reason for the development of this system requires continual monitoring and research to preserve their environment and ecosystems to have a future tourism sector. In order to have environmentally sustainable nautical tourism, investments must be made in infrastructures and in controls. The growth must respond to the demands, respecting in any case, the measures of management and prevention of fight against the pollution.