786 research outputs found
Long Term Evolution of the Size Distribution of Portuguese Cities
In this paper we study the evolution of the Portuguese urban system from 1864 to 2001. We apply the rank-size model and use rank-size estimates to describe the evolution of city-size hierarchy. Non paretian behaviour of the distribution is examined by adding a quadratic term to the basic equation of the model. Our results enhance two different processes in the evolution of urban system: until the middle of the twentieth century urban growth was accompanied by population concentration in the largest cities and proliferation of small cities; afterwards growth benefits middle size cities, reinforced in the last decades by heavy population losses in the two largest cities. From the association between the characteristics and evolving pattern of city size distribution and the spatial pattern of urban growth, it appears that the non paretian behaviour of city size distribution in the last decades can be linked to the particular growth process of cities located in the proximity of the central cities of the two metropolitan areas of Portugalâs mainland. In order to obtain a better understanding of the dynamics of the Portuguese urban system we examine the movements in the ranking of cities. We also analyse the existence of spatial correlation in the process of urban hierarchy restructuring.
The evolution of city size distribution in Portugal: 1864-2001
The rank-size model - which states that the size distribution of cities in a country follows a Pareto distribution - has been recognized as one of those stylised facts or amazing empirical regularities, in spatial economics. A common problem in city size distribution studies concerns the definition of âcitiesâ, namely the consistency of those definitions over time. In this paper we use a city-proper data base which uses a consistent definition of cities from 1864 to 1991. Portugal is a country with long established national borders and whose mainland urban system shows a constant number of cities over that period. In Portugal, empirical evidence on city size distribution based on census data shows that two large cities dominate the urban system, associated with a large number of very small cities and a clear deficit of medium-size cities. In this paper we analyse the evolution of the rank size exponent and examine the effect of varying city size cut-offs on the estimated value of that exponent. Then, we study the deviations of the rank-size distribution from linearity. Finally, we explore the dynamics underlying the evolution of the urban system by examining the relationship between city growth rates and city size. Keywords: city size distribution, Zipfâs law, rank-size, urban hierarchy, urban primacy
The evolution of city size distribution in Portugal: 1864-2001
The rank-size model - which states that the size distribution of cities in a country follows a Pareto distribution - has been recognized as one of those stylized facts or amazing empirical regularities, in spatial economics. A common problem in city size distribution studies concerns the definition of âcitiesâ, namely the consistency of those definitions over time. In this paper we use a city-proper data base which uses a consistent definition of cities from 1864 to 1991. Portugal is a country with long established national borders and whose mainland urban system shows a constant number of cities over that period. In Portugal, empirical evidence on city size distribution based on census data shows that two large cities dominate the urban system, associated with a large number of very small cities and a clear deficit of medium-size cities. In this paper we analyse the evolution of the rank size exponent and examine the effect of varying city size cut-offs on the estimate value of that exponent. Then, we study the deviations of the rank-size distribution from linearity. Finally, we explore the dynamics underlying the evolution of the urban system by examining the relationship between city growth rates and city size.city size distribution, Zipfâs law, urban hierarchy, urban primacy
Long term evolution of the size distribution of Portuguese cities
In this paper we study the evolution of the Portuguese urban system from 1864 to 2001. We apply the rank-size model and use rank-size estimates to describe the evolution of city-size hierarchy. NonParetian behavior of the distribution is examined by adding a quadratic term to the basic equation of the model. Our results enhance two different processes in the evolution of urban system: until the middle of the twentieth century urban growth was accompanied by population concentration in the largest cities; afterwards growth benefits middle size cities, reinforced in the last decades by heavy population losses in the two largest cities. From the association between the characteristics and evolving pattern of city size distribution and the spatial pattern of urban growth, it appears that the nonParetian behavior of city size distribution in the last decades can be linked to the particular growth process of cities located in the proximity of the central cities of the two metropolitan areas of mainland Portugal. In order to obtain a better understanding of the dynamics of the Portuguese urban system we examine the movements in the ranking of cities, through a Markov chain process. We also analyse the existence of spatial correlation in the process of urban hierarchy restructuring.Urban hierarchy, rank-size distribution, urban growth, Markov processes
Leading in the change into sustainable food systems: the Nestlé case - organizational tensions arising from a sustainability movement
The work project developed will focus on Nestlé and how it can become a leader in sustainable
food systems transition. The Nescafé Plan will be covered as a specific project that positions
Nestlé in the journey for sustainable development, improving coffee sourcing activities. From
the case, a teaching note will address the different organizational tensions arising from the
project. Moreover, the evaluation report will be cover how different stakeholdersâ engagement
can ensure Nestlé leadership position when transforming food systems, specifically through
regenerative agriculture
In an industry where M&A is the new black, should Pandora A/S acquire Aritzia Inc.?
The present dissertation aims at performing a thorough analysis of the feasibility of a friendly acquisition deal between Pandora A/S and Aritzia Inc., where Pandora A/S is the acquirer firm, whereas Aritzia Inc. is the target. Pandora A/S is a global jewelry manufacturer and retailer, while Aritzia is a womenâs apparel designer, manufacturer and retailer; an overview of each companyâs business is presented. The analysis performed herewith also comprises an economic outlook of the jewelry and apparel industries, followed by the valuation of the companies as separate entities and as a combined entity, resorting to differing valuation approaches, such as the Discounted Cash Flow Valuation and the Relative Valuation methods. The deal would take place in a global environment with a strong M&A activity in the fashion industry, with the amount of deals and their value reaching record-high numbers. The suggested deal entails synergies valued at USD 395.19 million and will take the form of an all-share transaction, with a purchase price of USD 1,877 million, corresponding to a premium of 20.35%. By 2023, expectations are that the deal will potentially yield an accretion of 5.87%.A presente dissertação tem como objetivo realizar uma anĂĄlise minuciosa da viabilidade da realização de um negĂłcio de aquisição amigĂĄvel entre a Pandora A/S e a Aritzia Inc., no qual a Pandora A/S atua como empresa aquisitiva, e a Aritzia Inc. como empresa-alvo da compra. A Pandora A/S Ă© uma produtora e retalhista mundial de joalharia, enquanto que a Aritzia elabora o design, produz e vende produtos de vestuĂĄrio feminino; Ă© aqui apresentada uma visĂŁo global do negĂłcio de cada empresa. A anĂĄlise realizada inclui, tambĂ©m, uma visĂŁo global das indĂșstrias de joalharia e vestuĂĄrio, seguida da avaliação das empresas enquanto entidades individuais, e tambĂ©m enquanto uma sĂł entidade fundida, recorrendo a diferentes abordagens de avaliação. A transação teria lugar num ambiente global pautado por uma forte atividade de FusĂ”es e AquisiçÔes na indĂșstria da moda, sendo que o nĂșmero de transaçÔes e o valor que estas tomam tĂȘm atingido valores recorde. O negĂłcio aqui sugerido ocasiona sinergias avaliadas em USD 395.19 milhĂ”es, e adota a forma de um negĂłcio totalmente financiado por açÔes, com um preço de aquisição de USD 1,877 milhĂ”es, a que corresponde um prĂ©mio de 20.35%. Em 2023, expecta-se que a transação terĂĄ associado um lucro por ação de 5.87%
The importance of stories to promote empahty in young learners
This report shares an action research project that aimed to answer the question âHow can stories be used as a resource in the classroom to promote empathy in young learners?â. Taking into consideration this initial question, the aims of this research were related to the use of stories in the classroom considering the stages associated to the adaption of the story and the storytelling process. Another aim was to understand which tools could be used to assess empathy trait development in students. The study took place from September to December 2019 in a 3rd grade class in a primary school in Portugal. The results highlight aspects to take into consideration when adapting and telling a story successfully in the English primary classroom, as well as a suggestion for a data collection tool to assess the empathy trait development in students.Este relatĂłrio pretende responder Ă questĂŁo inicial âComo Ă© que as histĂłrias podem ser utilizadas como um recurso na sala de aula para promover a empatia em jovens aprendentes?â. Tendo em consideração esta questĂŁo inicial, os objetivos deste estudo estĂŁo relacionados com a utilização das histĂłrias na sala de aula, considerando o processo de adaptação da histĂłria e o ato de contar a mesma. Outro aspeto importante deste projeto, seria perceber quais seriam os instrumentos de recolha de dados mais importantes, relativamente ao desenvolvimento do traço da empatia nos aprendentes. Este estudo decorreu entre Setembro e Dezembro de 2019, numa turma de 3Âș ano, numa escola primĂĄria, em Portugal. Os resultados demonstraram diferentes e importantes aspetos a ter em conta no processo de adaptação e no ato de contar uma histĂłria de forma bem-sucedida, bem como, instrumentos de recolha de dados pertinentes para a compreensĂŁo do estado inicial de empatia nos aprendentes
Long Term Evolution of the Size Distribution of Portuguese Cities
In this paper we study the evolution of the Portuguese urban system from 1864 to 2001. We apply the rank-size model and use rank-size estimates to describe the evolution of city-size hierarchy. Non paretian behaviour of the distribution is examined by adding a quadratic term to the basic equation of the model. Our results enhance two different processes in the evolution of urban system: until the middle of the twentieth century urban growth was accompanied by population concentration in the largest cities and proliferation of small cities; afterwards growth benefits middle size cities, reinforced in the last decades by heavy population losses in the two largest cities. From the association between the characteristics and evolving pattern of city size distribution and the spatial pattern of urban growth, it appears that the non paretian behaviour of city size distribution in the last decades can be linked to the particular growth process of cities located in the proximity of the central cities of the two metropolitan areas of Portugal's mainland. In order to obtain a better understanding of the dynamics of the Portuguese urban system we examine the movements in the ranking of cities. We also analyse the existence of spatial correlation in the process of urban hierarchy restructuring
The evolution of city size distribution in Portugal: 1864-2001
The rank-size model - which states that the size distribution of cities in a country follows a Pareto distribution - has been recognized as one of those stylised facts or amazing empirical regularities, in spatial economics. A common problem in city size distribution studies concerns the definition of âcitiesâ, namely the consistency of those definitions over time. In this paper we use a city-proper data base which uses a consistent definition of cities from 1864 to 1991. Portugal is a country with long established national borders and whose mainland urban system shows a constant number of cities over that period. In Portugal, empirical evidence on city size distribution based on census data shows that two large cities dominate the urban system, associated with a large number of very small cities and a clear deficit of medium-size cities. In this paper we analyse the evolution of the rank size exponent and examine the effect of varying city size cut-offs on the estimated value of that exponent. Then, we study the deviations of the rank-size distribution from linearity. Finally, we explore the dynamics underlying the evolution of the urban system by examining the relationship between city growth rates and city size. Keywords: city size distribution, Zipfâs law, rank-size, urban hierarchy, urban primac
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