Return migration and entrepreneurship: An IV approach

Double Degree. A Work Project, presented as part of the requirements for the Award of a Master’s Degree in Management from NOVA – School of Business and Economics and a Masters Degree in Economics from Louvain School of Management

Starburst accelerator and incubator construction & energy: How to monitor the activities of an incubator and give strategic advice to startups

This work project takes the format of a problem-solving approach suggested by “Impulse Partners”, a French consulting firm. It recommends a way to measure the success of ten startups in the incubators “Starburst” and “Incubator Construction & Energy” and give them strategic guidance. A Balanced Scorecard is elaborated to help incubated startups building up and implementing their strategy. The Scorecard suggests possible initiatives for the startups that are ideally realized with the help of the consulting firm that is steering the incubator. Special attention is drawn to what the startups need to succeed, which typically concerns financing, networking and managing skills.

How to monitor and improve Unilever JM Supply Chain processes to become the best of Portugal’s sector in 2015?

Unilever Jerónimo Martins is a Portuguese joint-venture leading firm in what concerns the supply chain industry of fast-moving consumer goods in Portugal. The scope of analysis of this Work Project is focusing on Unilever-JM operations and services in the Portuguese market regarding quality, efficiency and effectiveness over B2B customers. It will be analysed the possibility of development and implementation of a performance measurement system, Tableau de Bord, which will be crucial for the identification of potential opportunities of improvement with impact in the supply chain processes. This will be completed through the establishment of KPI’s to monitor and manage periodically logistics, planning and customer service processes’ performance, which are the ones where the bottlenecks are impacting more in the supply chain. In this work project the nexus causality for the problems will also be discussed and some recommendations will be prepared to tackle the inefficiencies found through the monitoring of the previous core processes, in order to improve efficacy and quality service of the supply chain.

Shiva's dance: Crisis, local institutions and private firms

The uneven spatial distribution of start-ups and their respective survival may reflect comparative advantages resulting from the local institutional background. For the first time, we explore this idea using Data Envelopment Analysis (DEA) to assess the relative efficiency of Portuguese municipalities in this specific context. We depart from the related literature where expenditure is perceived as a desirable input by choosing a measure of fiscal responsibility and infrastructural variables in the first stage. Comparing results for 2006 and 2010, we find that mean performance decreased substantially 1) with the effects of the Global Financial Crisis, 2) as municipal population increases and 3) as financial independence decreases. A second stage is then performed employing a double-bootstrap procedure to evaluate how the regional context outside the control of local authorities (e.g. demographic characteristics and political preferences) impacts on efficiency.

Enquadramento da Segurança privada nos desafios da segurança global

O estágio, cujo relatório é agora apresentado, foi desenvolvido na Securitas SA., uma das maiores empresas de segurança privada do mundo, com filiais em quase todos os continentes. Procurou-se perceber qual o enquadramento mais adequado ao exercício da segurança privada em Portugal, designadamente no ponto de vista da maior empresa de segurança privada no mundo, face aos novos tipos de ameaça e de necessidades dos seus clientes ou público-alvo. O enfoque da análise assenta nas limitações impostas não pela capacidade técnico-operacional dos prestadores deste tipo de serviço, mas sim pelas restrições impostas pela legislação em vigor e a sua adequação às necessidades demonstradas. O objectivo final é a elaboração de um relatório que deverá conter as considerações que se destacarem no que respeita às dificuldades encontradas e consequentes respostas ou soluções para as mesmas.

Experimental and modeling studies on reverse electrodialysis for sustainable power generation

A potentially renewable and sustainable source of energy is the chemical energy associated with solvation of salts. Mixing of two aqueous streams with different saline concentrations is spontaneous and releases energy. The global theoretically obtainable power from salinity gradient energy due to World’s rivers discharge into the oceans has been estimated to be within the range of 1.4-2.6 TW. Reverse electrodialysis (RED) is one of the emerging, membrane-based, technologies for harvesting the salinity gradient energy. A common RED stack is composed by alternately-arranged cation- and anion-exchange membranes, stacked between two electrodes. The compartments between the membranes are alternately fed with concentrated (e.g., sea water) and dilute (e.g., river water) saline solutions. Migration of the respective counter-ions through the membranes leads to ionic current between the electrodes, where an appropriate redox pair converts the chemical salinity gradient energy into electrical energy. Given the importance of the need for new sources of energy for power generation, the present study aims at better understanding and solving current challenges, associated with the RED stack design, fluid dynamics, ionic mass transfer and long-term RED stack performance with natural saline solutions as feedwaters. Chronopotentiometry was used to determinate diffusion boundary layer (DBL) thickness from diffusion relaxation data and the flow entrance effects on mass transfer were found to avail a power generation increase in RED stacks. Increasing the linear flow velocity also leads to a decrease of DBL thickness but on the cost of a higher pressure drop. Pressure drop inside RED stacks was successfully simulated by the developed mathematical model, in which contribution of several pressure drops, that until now have not been considered, was included. The effect of each pressure drop on the RED stack performance was identified and rationalized and guidelines for planning and/or optimization of RED stacks were derived. The design of new profiled membranes, with a chevron corrugation structure, was proposed using computational fluid dynamics (CFD) modeling. The performance of the suggested corrugation geometry was compared with the already existing ones, as well as with the use of conductive and non-conductive spacers. According to the estimations, use of chevron structures grants the highest net power density values, at the best compromise between the mass transfer coefficient and the pressure drop values. Finally, long-term experiments with natural waters were performed, during which fouling was experienced. For the first time, 2D fluorescence spectroscopy was used to monitor RED stack performance, with a dedicated focus on following fouling on ion-exchange membrane surfaces. To extract relevant information from fluorescence spectra, parallel factor analysis (PARAFAC) was performed. Moreover, the information obtained was then used to predict net power density, stack electric resistance and pressure drop by multivariate statistical models based on projection to latent structures (PLS) modeling. The use in such models of 2D fluorescence data, containing hidden, but extractable by PARAFAC, information about fouling on membrane surfaces, considerably improved the models fitting to the experimental data.

An analog model for global macro investing

This study proposes a systematic model that is able to fit the Global Macro Investing universe. The Analog Model tests the possibility of capturing the likelihood of an optimal investment allocation based on similarity across different periods in history. Instead of observing Macroeconomic data, the model uses financial markets’ variables to classify unknown short-term regimes. This methodology is particularly relevant considering that asset classes and investment strategies react differently to specific macro environment shifts.

Born global companies: A case study about the internationalization behaviours of Portuguese companies

Portuguese Born Global Companies have been performing an important role in the Portuguese market, mainly due to their innovative ideas and the positive contribution to exportations. This study focuses on the international strategies of four of these companies, comparing them with four international Non-Born Global Companies, in qualitative analysis. It will be possible to see a preference by the Non-Born Global Companies over proximate cultural countries. By following opportunities instead of markets, Portuguese Born Global Companies excel at internationalization growth. The purpose of this study is to help managers of small, innovative companies understand the internationalization strategies in Portugal.

Hotel industry: An answer to the emerging trends on the global demand side of tourism

This dissertation studies essentially how Millennials are changing the hotel industry, in the sense that new trends are emerging with this generation and hotels need to respond accordingly, in order to survive within their competitive industry. Emphasis is also given to Asian travellers, as the enlargement of these countries’ middle class populations is predicted, therefore making Asian travellers a valuable target for the hotel industry. To successfully target this segment, hoteliers need also to consider the cultural differences and aspirations that come together with the Asian travellers, and appropriately adapt their offer to them. I will then redirect this study to the city of Lisbon, the Portuguese capital, to analyse if Lisbon’s four and five-star hotel managers are aware of the new market trends, and to understand how they are changing their hotels in order to make them more attractive to Millennials and Asian travellers. Using a sample of 12 hotels (four and five-stars ratings), I have concluded that, although there is a notable undergoing process of adaptation to these guests, there is a long way ahead in order for Lisbon’s hotels to entirely please and retain millennial guests.

A saúde mental global, a depressão, a ansiedade e os comportamentos de risco nos estudantes do ensino superior : estudo de prevalência e correlação

RESUMO: A saúde mental é influenciada pelos comportamentos tanto como estes são influenciados pela saúde mental. Por isso é importante compreender quer a saúde mental quer os comportamentos adoptados pelo indivíduo em qualquer momento do seu ciclo vital para melhor poder actuar quando e sempre que necessário. Nos estudantes universitários, não sendo uma população de risco, a saúde mental e os comportamentos de risco afectam não só o próprio estudante e quem com ele convive mas também as próprias instituições que o acolhem. O presente estudo teve como objectivos: nos estudantes universitários 1) caracterizar a saúde mental global; 2) caracterizar os níveis de sintomatologia depressiva e ansiosa; 3) identificar os padrões de comportamentos de risco; 4) analisar a relação entre saúde mental global, depressão, ansiedade e comportamentos de risco. Para tal realizou-se um estudo quantitativo, descritivo, correlacional, transversal e exploratório com 1968 estudantes do 1º ciclo da Universidade da Beira Interior e dos Institutos Politécnicos da Guarda, Castelo Branco e Portalegre. Foram utilizados como instrumentos de investigação uma ficha de Caracterização Socio-Demográfica; o Mental Health Inventory-5; o Patient Health Questionnaire-9; Generalized Anxiety Disorder-7; e o Questionário de Comportamentos de Risco em Estudantes Universitários. Os principais resultados mostraram que 18,3% (n=360) apresentavam saúde mental negativa; 17,7% sintomatologia depressiva moderada a severa; 15,6% sintomatologia ansiosa moderada a severa; e que apenas 15% dos que apresentavam saúde mental global negativa recorreu a ajuda profissional. As mulheres, os alunos de 1ª e 4º ano, e os alunos dos cursos de Artes e Letras apresentavam níveis de saúde mental global inferiores. O Consumo de álcool foi superior nos homens, nos estudantes das áreas de Ciências e Ciências da Saúde e nos estudantes deslocados. Os estudantes com mais de 3 unidades curriculares em atraso apresentavam maior sintomatologia depressiva e ansiosa. Os resultados mostraram ainda que quanto mais positiva a saúde mental global maior o consumo de bebidas alcoólicas e menor a sintomatologia depressiva e ansiosa. As variáveis Curso e Sexo influenciam significativamente a saúde mental global, a depressão e a ansiedade. Apesar de a maioria dos estudantes inquiridos não revelar problemas de saúde mental nem apresentar comportamentos de risco, as principais conclusões apontam para a necessidade de programas de educação para a saúde assim como de programas de literacia de saúde mental para as instituições poderem identificar precocemente as situações problemáticas e ajudar os próprios estudantes a reconhecer em si o sofrimento psicológico e a necessidade de procurar apoio profissional.---------------------------------- ABSTRACT: Mental health is influenced by behaviours as much as behaviours are influenced by mental health. Thus, it is important to understand not only the mental health but also the behaviours adopted by an individual at any stage of its vital cycle in order to accurately intervene whenever and always deemed necessary. Regarding college students, despite not being deemed as a population at risk, mental health and risk behaviours affect not only the student itself and whoever interacts with him but also the institutions that host them. The main purposes of this study were regarding college students 1) characterize the overall mental health; 2) characterize the levels of depression and anxiety symptoms; 3) identify the risk behaviours patterns; and 4) analyse the relation between overall mental health, depression, anxiety and risk behaviours. With that scope a quantitative, descriptive, correlated, transversal and exploratory study has been conducted with 1968 students of the 1st cycle of the University of Beira Interior and of the Polytechnic Institutions of Guarda, Castelo Branco and Portalegre. The investigation instruments used were a chart of Socio-Demographic Characterization; the Mental Health Inventory-5; the Patient Health Questionnaire-9; the Generalized Anxiety Disorder-7; and one Questionnaire of Risk Behaviours in College Students. The main results showed that 18.3% (n=360) revealed negative mental health; 17.7% moderated to severe depression symptoms; 15.6% moderated to severe anxiety symptoms; and that only 15% of those revealing negative overall mental health have seek for professional help. Females, students of the 1st and 4th years and students of the Artes and Letras courses revealed inferior levels of overall mental health. Alcohol consumption is higher in males, in the Sciences and Health Sciences’ students and on displaced students. Students with more than 3 curricular units in delay revealed higher depression and anxiety symptoms. The results also showed that the more positive overall mental health the higher alcohol consumption and the lower depression and anxiety symptoms. The Course and Sex variations significantly influence the overall mental health, the depression and the anxiety. Although the majority of the enquired students did not reveal mental health issues or present risk behaviours, the main conclusions indicate the need to implement health education and mental health literacy programmes in order to enable the institutions to prematurely identify problematic situations and help students to recognize the psychological suffering and the need to seek for professional help.

Essays in entrepreneurship among foreign individuals

We study how countries of origin affect foreign individuals’ choice between salaried work and entrepreneurship upon arrival to the host country. Using a change in the Portuguese immigration law we evaluate the impact of reducing regulations on entrepreneurship upon the probability of foreign individuals choose entrepreneurship upon arrival. We find that foreigners from countries more dissimilar to the host country and those from wealthier countries are more likely engage in entrepreneurship upon arrival than those from similar countries. Foreigners from countries outside the European Economic Area, who have to fulfil requirements that are not required to those from countries within this area, are less likely to enter the labor market as entrepreneurs than those from countries within this area. According to our findings reducing legal requirements to foreign entrepreneurship may encourage foreigners to engage in entrepreneurship upon arrival, although such impact is not considerable.

Responsible research and innovation: a global perspective

Based on the paper presented at the Doctorate Conference on Technologogy Assessment in July 2013 at the University Nova Lisboa, Caparica campus

The born global phenomenon- The Portuguese case

The growing significance of companies that conduct international business at or near their funding has been critically challenging previous incremental models of international expansion. This thesis aims to cross-compare, by means of a multiple-case study, eight Portuguese start-ups among themselves and with the theoretical concept of born global firms versus traditional ones. This work project finds that: (1) active entrepreneurs with global vision from inception are essential for the implementation of international strategies; (2) only formal network plays a key role for successful internationalization and (3) inimitable sources of value creation, niche-focused strategies and unique intangible assets are also crucial.

Responsible research and innovation: a global perspective

Based on the paper presented at the Doctorate Conference on Technologogy Assessment in July 2013 at the University Nova Lisboa, Caparica campus

Global trends in modern and contemporary islamic art

Disponível para consulta índice e introdução.