Abstract
Firms aim at achieving their economic interests without neglecting the needs of local and regional communities and the environment itself. The process involves defining and implementing Social Responsibility strategies that leverage organizational competitiveness and sustainability. In this context, the current study purposes to demonstrate how Corporate Social Responsibility (CSR) and a sustainable orientation influence the satisfaction and loyalty of academic tourists to the Metro of Porto (in Portugal). More specifically, our study aims to assess the satisfaction of academic tourists with the Metro of Porto and, additionally, to analyze the variables that determine the satisfaction and loyalty of these tourists to this specific transport company, which has never been achieved before. Our proposed research model seeks to determine how CSR and a sustainable orientation influence academic tourists' loyalty to the Metro of Porto transport services as well as their link to Service Quality, Perceived Value, Corporate Image and Tourist Satisfaction. From a sample of 256 academic tourists, customers of the Metro of Porto, a quantitative analysis was carried out using the structural equation model (SEM-PLS). The results obtained allow us to conclude that CSR and Service Quality have an impact on academic tourists' satisfaction and loyalty to the Metro of Porto. The development of a region is intrinsically linked to transport networks that promote the integration and growth of productive systems. Our results demonstrate the relationship between regional development and business sustainability strategies that integrate Social Responsibility practices. We show the importance that Social Responsibility policies have for companies as a precursor to customer satisfaction and loyalty to a company. Hence, as a guarantee of obtaining economic results, firms must simultaneously contribute to the sustainable development of territories.

Abstract
Purpose This study applies an Employee Satisfaction Index (ESI) model to quantify the level of job satisfaction and explores the factors that influence employee satisfaction, performance and loyalty to an information technology recruitment and outsourcing organization in Portugal. Design/methodology/approach As an instrument of data collection, questionnaire was applied to the company's employees, which was divided into two parts: the first part consisted of a previous questionnaire, with questions related to sociodemographic characterization; the second part consisted of the ESI. The company operates only in the information technology (IT) market, and there are currently 300 consultants with different skills. Findings The results confirm that the company's employees are globally satisfied, and this satisfaction contributes positively and significantly to the reinforcement of contextual performance and to their loyalty to this organization. Originality/value Job satisfaction takes on a growing interest in understanding quality of life, strategic management and organizational performance. Job satisfaction contributes to the professional finding, that is, in employees' activity and in adopting positive attitudes toward customer satisfaction, thus promoting organizational performance.

Abstract
It is indisputable that technology is present in everyday life. In this digital era, brands need to adapt to the changing pace of the needs and desires of society to distinguish themselves from their adversaries, especially in the electronic environment. Hence, they must have well-defined and successful marketing and advertising strategies to achieve a place on the podium of preference of consumers. This work intends to understand how the communication strategies of Apple and Samsung affect the decisions of consumers in Portugal to buy electronic devices. To this end, a survey was conducted, and the responses of 700 individuals who reside in Portugal were analysed through descriptive and inferential (chi-square test of independence) statistics. The survey results show that cost-benefit, price, technical specifications, and performance are the characteristics that weigh the most when purchasing electronic devices, as well as the perceived prestige of the brand. Additionally, an association was found between having only one device and having more products of the brand, with Apple users having more frequently more than one of the brand's products than Samsung users. We thus concluded that Apple consumers are more loyal. It was also found that the store where the devices are brought is not independent, in Portugal, of the brand of the devices. Apple users buy more brand products from the brand store, both physical and online, than Samsung users. Finally, advertisements and word-of-mouth were found to be fundamental for consumers to acknowledge brand devices, and the degree in which this happens is also not independent of the brand, in Portugal, as a chi-square independence test showed.

Abstract
Due to added mobility and the increase in international students worldwide, as well as the current problem regarding the counterfeiting of diplomas and the selling of fraudulent certificates, we propose a technological solution. Namely, to ally blockchain technology to higher education certificates and diplomas, to make the process of checking for academic qualifications more facilitated and transparent. Employers of graduates, as well as higher education institutions which evaluate course applicants, would benefit. Perhaps equally as important, students applying for international degree programs would have their lives simplified. There is an increased pressure to ensure the legitimacy and authenticity of certifications and diplomas-and preferably without the current "hassle" of getting diplomas recognized by official entities. New technological advances, with the development of blockchain and smart contracts, with their characteristics of immutability, decentralization, security, traceability, and consensus, may be considered an excellent match to implement a robust and reliable anti-fraud solution to issue digital diplomas. Radical innovations, such as linking blockchain and higher education diplomas, involve significant change and novelty. Linking blockchain and higher education diplomas could potentially positively impact and benefit millions of people worldwide, especially the younger generations. This study involved a literature review and the searching of the Scopus database (refereed publications) for the following concepts: blockchain and diploma. Existing literature is recent, with most articles (25) published between 2019 and 2020, with 4 in 2018 and only 1 in 2017. This was aligned with our expectations since the development of blockchain utilization outside financial and crypto-assets industries is recent, and it is known as "Blockchain 3.0". We can additionally affirm that the topic is attracting attention and efforts from researchers worldwide and that some higher education institutions have already implemented ad hoc solutions. As it is, the sector lacks a unified response to the problem of automatic and reliable higher education diploma certification.

Abstract
Tourism plays a very important role in society. However, it has many negative impacts, such as the increasing problem of food wasting in hotel restaurants, especially when providing all-inclusive/all-you-can-eat breakfasts and dinners. This study aims to propose some activities which could lead to food wasting reduction. Through a questionnaire (with 132 respondents, from various countries), the authors wanted to find out respondents' attitudes towards suggested solutions and this problem in general. As part of the questionnaire, four possible activities were proposed in order to help to reduce food wasting and contribute to better food security in today's world. The questionnaire results proved that respondents would appreciate such opportunities, therefore answering the research question. Fridges (in which people could put their untouched leftovers), samples (before people take the whole portion of food), special cards (containing the ingredients used for the preparation of the meal), and daily announcements (of food wasting in kilograms) are four possible ways to reduce food wasting in hotel restaurants.

Abstract
The main objective of the present research is to identify the knowledge flows responsible for promoting the innovation capacity of Portuguese companies. Specifically, we intend to identify which variables influence Portuguese innovation capacity from a macro and micro perspective, so that we can establish possible ways to promote open innovation (OI) in Portugal since Portuguese companies have little maturity in terms of open innovation when compared to companies in other countries of the European Union. To achieve this goal, the methodological design used consisted of two phases. In the first phase, a literature review was conducted to identify the main variables associated with innovation performance. After identifying the most influential variables in the literature, in a second phase, data were collected through three distinct databases, namely Pordata, the Portuguese Tax and Customs Authority, and SABI. To identify the most influential variables in the Portuguese innovation capacity, the multivariate multiple regression technique based on the ordinary least square (OLS) method was applied. The results of the present research bring empirical evidence that researchers dedicated to R&D from non-profit institutions (i.e., inbound OI) and researchers from firms (i.e., outbound OI) exert a significant influence on innovation capacity so the development of an optimal strategy for the strengthening of open innovation by Portuguese firms should take into account the use and combination of these two specific knowledge flows. In this sense, the originality of this research lies in the fact that it is the first attempt to understand the possible implications of the determinants of innovation capacity on open innovation, from an exploratory study concerning the flows of knowledge.