ENIDH - GP/GTL - Artigo Científico
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- 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.
- Cruise destination characteristics and performance Application of a conceptual model to North Atlantic islands of MacaronesiaPublication . Luz, Luís Machado; Antunes, António Pais; Caldeirinha, Vítor; Caballé-Valls, Jordi; Garcia-Alonso, LorenaThe purpose of this study is to develop a conceptual model for both port and cruise destinations composed by site and situation-related factors as the main drivers with a direct influence on the performance of the cruise destination. A moderator variable was also included on the model, due to the different characteristics that cruise ports at distinct levels of development present. The conceptual model was then applied on the North Atlantic archipelagos of the Macaronesia region through a survey aimed at cruise specialists and stakeholders. The results of a structural equation model confirmed the concept model, which was subsequently validated through several interviews to senior officials of cruise line operators. Significant differences were observed between the more developed ports of the region and the less developed ports . For the more developed ports, there is a shared influence of both site- and situation-related factors, while in the less developed ports the main drivers are mostly restricted to site-related factors.
- 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.
- 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.
- Green Shipping Effect on Sustainable Economy and Environmental Performance.Publication . Felício, J. Augusto; Rodrigues, Ricardo; Caldeirinha, VitorThis paper focuses on green shipping and its’ influence on the sustainable economy and environmental performance. Based on the green shipping approach, this empirical study examines a survey sample of 193 responses from Portuguese and Spanish executive managers and uses exploratory factor analysis and structural equation model. The Green shipping approach supports the green theory. The results show the importance of green efficiency, green management, and pollution impact. The confirmation of the sizeable influence of green shipping on the sustainable economy and environmental performance constructs constitutes a major contribution to the literature. Green management and green efficiency contribute to controlling the impact of pollution with practical effects on economic sustainability. Another contribution arises from the fact that tax and financial incentives and environmental sustainability regulations indicate the relevance of the pollution impact and sustainable economy.
- 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.
- 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.
- Port Community Systems: Accelerating the Transition of Seaports toward the Physical Internet - The Portuguese CasePublication . Caldeirinha, Vítor; Nabais, João Lemos; Pinto, CláudioSupply chains are complex systems that have grown in dimension and spread worldwide. In supply chains, physical and information flows have strict service quality requirements, namely transparency conditions and traceability. Seaports, connecting land and maritime transport, are special components of supply chains where multiple players interact with different perspectives, and conflicting goals may arise. Port community authorities invest in electronic platforms to foster communication and integration with the companies that interact with the seaport, guiding the digitization of the seaport business. In main European and world ports, the Port Community System (PCS) is the platform that supports the creation of a network composed of shipping agents, shippers, freight forwarders, transporters, terminals, logistics platforms, and public entities. PCS focuses on service level, partner networks, maritime services, freight services, logistical services, and advanced port services. These features have an impact on seaport operations, which affects supply chain performance. Digitization within the scope of the PCSs has fostered the development of horizontal collaboration between seaport community partners. The Physical Internet (PI) is an innovative concept that seeks new logistics solutions requiring integration and interoperability between partners in the supply chain, including maritime and land transport. This paper focuses on (i) the evolution guidelines of PCSs and (ii) on the PCS Business Factors that can drive the supply chain into a significant improvement in performance. A survey was sent to a sample of Portuguese supply chain experts regarding the causal relationship between PCS Business Factors and supply chain performance in the next 10 to 20 years. From the data collected, recent services evolving at PCS are promoting a mindset change aligned to the implementation of a Physical Internet. Establishing a Physical Internal in Portuguese seaports could take decades, but it will support the transition to a new phase of PCS, accelerating the transition from Isolated Supply Chains (I-SCs) to Open Supply Chains (O-SCs), thus improving supply chain performance.