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Agglomeration, clusters and entrepreneurship : Studies in regional economic development
- 2014
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Editorial collection (other academic/artistic)abstract
- Regional economic development has experienced considerable dynamism over recent years. Perhaps the most notable cases were the rise of China and India to emergent country status by the turn of the millennium. With time now for hindsight, this book identifies some of the key forces behind these development successes, namely agglomeration, clusters and entrepreneurship.
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- Andersson, A. E., et al.
(author)
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Preface
- 2019
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In: The Economics of Disappearing Distance. - : Taylor & Francis. ; , s. xiii-
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Book chapter (other academic/artistic)
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| 4. |
- Andersson, David, 1978-
(author)
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From the Electronic Structure of Point Defects to Functional Properties of Metals and Ceramics
- 2007
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Doctoral thesis (other academic/artistic)abstract
- Point defects are an inherent part of crystalline materials and they influence important physical and chemical properties, such as diffusion, hardness, catalytic activity and phase stability. Increased understanding of point defects enables us to tailor the defect-related properties to the application at hand. Modeling and simulation have a prominent role in acquiring this knowledge. In this thesis thermodynamic and kinetic properties of point defects in metals and ceramics are studied using first-principles calculations based on density functional theory. Phenomenological models are used to translate the atomic level properties, obtained from the first-principles calculations, into functional materials properties. The next paragraph presents the particular problems under study. The formation and migration of vacancies and simple vacancy clusters in copper are investigated by calculating the energies associated with these processes. The structure, stability and electronic properties of the low-oxygen oxides of titanium, TiOx with 1/3 < x < 3/2, are studied and the importance of structural vacancies is demonstrated. We develop an integrated first-principles and Calphad approach to calculate phase diagrams in the titanium-carbon-nitrogen system, with particular focus on vacancy-induced ordering of the substoichiometric carbonitride phase, TiCxNy (x+y < 1). The possibility of forming higher oxides of plutonium than plutonium dioxide is explored by calculating the enthalpies for nonstoichiometric defect-containing compounds and the analysis shows that such oxidation is only produced by strong oxidants. For ceria (CeO2) doped with trivalent ions from the lanthanide series we probe the connection between the choice of a dopant and the improvement of ionic conductivity by studying the oxygen-vacancy formation and migration properties. The significance of minimizing the dopant-vacancy interactions is highlighted. We investigate the redox thermodynamics of CeO2-MO2 solid solutions with M being Ti, Zr, Hf, Th, Si, Ge, Sn or Pb and show that reduction is facilitated by small solutes. The results in this thesis are relevant for the performance of solid electrolytes, which are an integral part of solid oxide fuel cells, oxygen storage materials in automotive three-way catalysts, nuclear waste materials and cutting tool materials.
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- Andersson, Martin, et al.
(author)
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Dynamics of Entry and Exit of Product Varieties : – what evolution dynamics can account for the empirical regularities?
- 2009
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Reports (other academic/artistic)abstract
- Firm-level heterogeneity is substantial even in narrowly defined industries. This paper focuses on formulating evolution dynamics which can account for the observed heterogeneity and its maintenance. Based on examination of data on Swedish firm’ supply pattern to different markets over time, we present a parsimonious model that has the ambition to capture the picture of heterogeneous firms, while accommodating the simultaneous exit and entry of destination varieties in firms’ supply pattern. The model assumes both scale economies of firms and pathdependence, where the latter is manifested in such a way that the arrival rate of innovation ideas to an individual firm is a function of each firm’s stock of varieties at every given point in time. The path-dependence phenomenon is an “explosive” non-linearity, whereas conservation mechanisms include development of demand and exit of established varieties. The described path dependence explains the skewed distribution of varieties across firms, but the question of what keeps the “equilibrium” away from competitive exclusion where only few large firms remain. We make use of simulations to depict and assess the innovation dynamics of the proposed model.
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| 10. |
- Andersson, Martin, et al.
(author)
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Multinationals in the Knowledge Economy : A case study of AstraZeneca in Sweden
- 2008
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Reports (other academic/artistic)abstract
- Multinational companies play a large and growing role in the world economy. Theycontribute about 10 percent to world GDP and about two thirds to global exports. Inthe vast majority of the countries in the world, the presence of multinationals has alsobeen growing over time. This report presents a case study of the role of a large multinational company, activein one of the most R&D and knowledge intensive industries of the world, withestablishments in a small open economy. The case study examines the role ofAstraZeneca in the Swedish economy, i.e. an economy dominated by multinationalcompanies. They account for almost all of Sweden’s aggregate investments in privateR&D, over 90 percent of the country’s exports and imports as well as a significantshare of the total number of employees in the private sector. The analyses in the reportmake it possible to assess the importance of the local presence of such a largeknowledge-intensive multinational for Sweden.
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