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This paper analyses the political determination of transportation costs in a new economic geography model. In a benchmark case with certainty about where agglomeration takes place, a majority of voters favour economic integration and the resulting equilibrium is an industrialised core and a de-industrialised periphery. Allowing for uncertainty, a high level of trade costs may win the election and
Abstract is not available
Popular Abstract in English “We are not free in this area.” This is what the iNduna, a traditional leader at KwaDapha, shared with me when we first met in August 2011. KwaDapha is a small rural community at Bhanga Nek, Kosi Bay, in northern KwaZulu-Natal/Maputaland – one of the most scenic areas on the South African coastline. Kosi Bay falls within the Coastal Forest Reserve section of the iSimaIn the past several decades under a growing influence of ecological modernisation, various assumed ‘win-win’ approaches to protected area conservation and poverty alleviation have been introduced all over the world, especially in resource-rich developing countries. Yet protected area conservation is an inherently political process, and the goals are often not achieved. There are concerns about com
Popular Abstract in Swedish När vi ser oss omkring i naturen är det lätt att överväldigas av den otroliga variationen i olika former, färger och mönster som förekommer. Var kommer all denna variation ifrån? Samma fråga ställde sig Charles Darwin för mer än 150 år sedan – svaret publicerade han 1859 i sin bok ”Om arternas uppkomst”. Evolution är den process som genom selektion gynnar vissa egenskapOur knowledge of the evolutionary potential of traits involved in different selective episodes, especially in natural populations, is still limited. This is true for questions such as the genetic basis and inheritance of traits, how natural and sexual selection acts on them, and how selective conflicts influence the evolutionary response to selection. In my thesis, I investigate these questions, u
Structural investigations of compounds in the CsI-(Cd/Hg)I2 system have been performed by means of X-ray diffraction, thermogravimetric and calorimetric techniques. Crystals of the compounds studied were synthesized from aqueous solutions of CsI and CdI2/HgI2 by the slow evaporation of water. In total, the structure of ten compounds were determined by means of X-ray diffraction on single crystals,
It is essential to find suitable modes (combinations of alphabet sizes and code rates) for transmission in cellular systems. Bad choices result in low spectrum efficiency. An analytical method is proposed to find the modes which give the highest spectrum efficiency when using adaptive modulation. It is demonstrated that data rates considerably higher than 271 and 384 kbps are feasible in GSM and E
Internet of things technologies makes it possible to trace when and where the excellent food or wine is spoiled or loses perfect taste in logistics and retail. This paper describes a system using a two-layered wireless sensor network to monitor the supply chain from manufacturer to consumer, including the network topology, application software on server, and sensor node hardware. It employs GSM/GP
Popular Abstract in Swedish Varför är vissa individer bättre på att identifiera och exploatera nya affärsmöjligheter än andra? Ett antagande som ofta lyfts fram är att framgångsrika entreprenörer förväntas ha utvecklat specifika kunskaper genom tidigare karriärerfarenhet, vilket i sin tur främjar deras entreprenörskap. Om detta antagande stämmer, hur kan vi förstå denna erfarenhetsbaserade lärprocWhy are some individuals more successful in recognizing and exploiting new venture opportunities than others? The common view is that successful entrepreneurs have acquired and developed specific types of knowledge through their previous career experiences, which in turn facilitate their involvement in the entrepreneurial process from opportunity recognition to opportunity exploitation. If this is
The purpose of this work is the enhancement of performance by a new design of monolithic heat exchangers under steady-state operating conditions. Heat transfer phenomena and hydrodynamics have been studied and visualized by computational fluid dynamics (CFD). Further, a simple gas distribution system has been analyzed in purpose to find the best performance of the exchanger. To achieve this, 3D si
