A comment on "The effect of a common currency on the volatility of the extensive margin of trade"

In this paper I comment on Auray, Eyquem, and Pontineau (2012). I show that their introduction of sticky-prices into Ghironi \& Melitz (2005) framework is incorrect and generates a bias in simulation results. Additionally, I find that, by introducing sticky-prices into Ghironi \& Melitz (2005) framework in a correct way, the model is able to account for the empirical findings of Auray, Eyquem, and Pontineau (2012). Finally, I also find that if central banks target a data-consistent CPI inflation, results improve quantitatively.Pricing-to-market; Local currency pricing; Extensive Margin; Monetary Union; Monetary Policy

The Relationship between Trigger Price and Punishment Period in Green and Porter (1984) Game made Endogenous

Green and Porter (1984) made a huge contribution to Industrial Organization Theory where a trigger price is defined by firms and whenever the price falls below this trigger price, the firms cease to produce at the monopoly level and enter into a punishment period. Our goal with this paper is to define, endogenously in the model, relationships between the trigger price and the punishment period, which were set exogenously in the original paper.Green and Porter (1984); trigger price; punishment period

Big data analytics for intra-logistics process planning in the automotive sector

The manufacturing sector is facing an important stage with Industry 4.0. This paradigm shift impulses companies to embrace innovative technologies and to pursuit near-zero fault, near real-time reactivity, better traceability, and more predictability, while working to achieve cheaper product customization. The scenario presented addresses multiple intra-logistic processes of the automotive factory Volkswagen Autoeuropa, where different situations need to be addressed. The main obstacle is the absence of harmonized and integrated data flows between all stages of the intra-logistic process which leads to inefficiencies. The existence of data silos is heavily contributing to this situation, which makes the planning of intra-logistics processes a challenge. The objective of the work presented here, is to integrate big data and machine learning technologies over data generated by the several manufacturing systems present, and thus support the management and optimisation of warehouse, parts transportation, sequencing and point-of-fit areas. This will support the creation of a digital twin of the intra-logistics processes. Still, the end goal is to employ deep learning techniques to achieve predictive capabilities, all together with simulation, in order to optimize processes planning and equipment efficiency. The work presented on this thesis, is aligned with the European project BOOST 4.0, with the objective to drive big data technologies in manufacturing domain, focusing on the automotive use-case

Building a poker playing agent based on game logs using supervised learning

Tese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto. 201

Using container-based virtualization on web apps production environment: dipcode development cycle

Dissertação de mestrado integrado em Engenharia InformáticaWith the fast evolution of the internet over the last years, the top priority on software development has shifted from what? to when?. Reduced time-to-market is now the competitive edge that all companies strive for. The usage of container-based virtualization technologies keep the multiple environments where a development team works similar enough, that their work is made easier when devel oping and testing new features, which in turn results in a significantly faster delivery. The nature of this tecnhology also brings numerous advantages when it comes to management, monitoring and maintaining resources, allowing for an ease of adjustment, based on the client needs. Throughout this dissertation is presented an extended base of knowledge about container technologies, especially Docker, as well as what are the basic techniques to use when building an application inside such infrastructure, from the writing of the Dockerfile to the adaptation of the multiple pipelines responsible to deploy the application.Com a rápida evolução da internet nos últimos anos, a prioridade máxima no desenvolvi-mento de software transformou-se de "o quê?" para "quando?". Disponibilizar rapidamente uma aplicação no mercado é agora a vantagem competitiva que todas as empresas ambi-cionam ter. A utilização de tecnologias de virtualização através de containers uniformizam os vários ambientes em que a equipa de desenvolvimento opera, facilitando assim o seu trabalho no que diz respeito à adição e teste de novas funcionalidades, o que resulta numa entrega significativamente mais rápida. A natureza desta tecnologia trás inúmeras vantagens à gestão, monitorização e manutenção de recursos, permitindo facilmente aumentar ou reduzir os mesmos baseado nas necessidades dos seus clientes. Nesta dissertação é apresentada uma extensa base de conhecimento sobre as tecnologias de containerização, em especial o Docker, bem como quais as técnicas base a utilizar quando se pretende construir uma aplicação com uma infraestrutura deste tipo, desde a escrita do Dockerfile, até à adaptação das várias pipelines responsáveis por disponibilizar a aplicação em ambiente de produção

Food tourism : a netnographic study about online engagement on food tourism communities and what to look for as a business owner

Food tourism is becoming a relevant and developing trend in the industry of tourism. Consumers nowadays travel in order to explore and to get acquainted with cultures and realities they haven’t experienced. A substantial part of this discovery is played by food. This cultural feature is one of the strongest and most representative, it has been passed on from generation to generation to, ultimately, culminate on what it is today. Considering this trend, existing academic research about food tourism with the target of understanding consumers’ engagement has been conceived but is limited. Therefore, by using a qualitative method of netnography, the present thesis aims to understand users’ engagement in the online food tourism community. Results show the emergence of three themes that can be related to online food tourism communities. The most evident is online leadership demonstrated by the tight relationship between the leader and followers of the community. Secondly, knowledge is a theme due to the continuous exchange of food tourism expertise within the communities. Lastly, food tourism comes hand in hand with the development of emotions and the influence of behaviours, and thus the last theme to be considered is consequences. To conclude, implications include how food tourism business owners should advertise their food experiences, how they could collect valuable insights about their target audience and why opinion leaders shouldn’t be ignored.O turismo de alimentos está a manifestar-se como uma tendência relevante e em desenvolvimento na indústria do turismo. Atualmente, os consumidores viajam para explorar e conhecer culturas e realidades que ainda não vivenciaram. Uma grande parte desta descoberta é feita através da comida. Este aspeto é um dos mais fortes e representativos de uma cultura, uma vez que foi passado de geração em geração para, finalmente, culminar no que é hoje. Considerando esta tendência, a pesquisa acadêmica existente sobre turismo de alimentos, com a preocupação de entender a interação entre consumidores, foi concebida, mas é limitada. Por conseguinte, a presente tese tem como objetivo perceber a interação dos membros de uma comunidade online de turismo de alimentos usando um método qualitativo de netnografia. Os resultados mostram a ascensão de três temas que podem estar relacionados com comunidades online de turismo de alimentos. O mais evidente é a liderança online demonstrada pelo relacionamento acentuado entre o líder e os seguidores da comunidade. Em segundo lugar, o conhecimento surge como tema devido à troca contínua de conhecimento sobre turismo de alimentos nas comunidades. Por último, acompanhando o turismo de alimentos surge o desenvolvimento de emoções e influência de comportamentos, por tal o último tema a ser considerado é consequências. Para concluir, as implicações incluem a forma como os donos de negócios de turismo de alimentos devem anunciar as suas experiências alimentares, como podem recolher informação valiosa sobre o seu público-alvo e a razão pela qual líderes de opinião não devem ser ignorados

Editors’ note

info:eu-repo/semantics/publishedVersio

Transportation modelling for environmental impact assessment : Porto metropolitan area case study

Tese de mestrado. Transportes. Faculdade de Engenharia. Universidade do Porto. Departamento de Engenharia Mecânica. Universidade de Aveiro. 200

Centro de Computação Gráfica: the new mission and the future

This article reports on the refoundation process of CCG. With a new constitutional member(the University of Minho), new constitution and bylaws, and a new management, and also due to the process of national expansion, the CCG and the University of Minho (UM), one of the most prestigious contemporary universities in Portugal, initiated a careful process of transformation and restructuring in October 1999