617,645 research outputs found

    On the Complexity of the Mis\`ere Version of Three Games Played on Graphs

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    We investigate the complexity of finding a winning strategy for the mis\`ere version of three games played on graphs : two variants of the game NimG\text{NimG}, introduced by Stockmann in 2004 and the game Vertex Geography\text{Vertex Geography} on both directed and undirected graphs. We show that on general graphs those three games are PSPACE\text{PSPACE}-Hard or Complete. For one PSPACE\text{PSPACE}-Hard variant of NimG\text{NimG}, we find an algorithm to compute an effective winning strategy in time O(∣V(G)∣.∣E(G)∣)\mathcal{O}(\sqrt{|V(G)|}.|E(G)|) when GG is a bipartite graph

    Regional development: contribution of evolutionary biology

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    This paper tries to set out a potential of application of some evolutionary biology concepts to the issue of regional development. The objective is to show that employment of these concepts or at least inspiration by them may enrich some theories of regional development and enhance the explanatory framework of regional evolution.First, the views of institutional economics and geography on evolutionary biology contribution are summarised, then some evolutionary concepts are applied to the path dependence concept e. g., in effort to find a possible way of classification of this phenomenon. However, we discuss some other evolutionary concepts, as coevolution, adaptation, preadaption, general approach to comprehension of evolution, etc. in connexion with some chosen theories and problems of regional development.Regional development ; evolutionary biology ; path dependence ; theories of regional development

    Moving beyond Anglo-American economic geography

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    [EN] Over the last fifteen years, we have been observing an increasing fragmentation of economic geography, concerning both schools of thought, perspectives, paradigms, themes and the educational background of researchers. The poly-vocal character of economic geography includes a variety of language areas, a phenomenon so far unknown to a large part of Anglo-American economic geographers. Particularly in the literature about theories, perspectives and paradigms, the non-English speaking world is largely ignored as a basis for debate. Even worse, leading scholars in the field increasingly use the term Anglo-American economic geography to refer to the whole field, although they describe trends and theories in both general and authoritative terms. The aim of this paper is to move beyond Anglo-American economic geography by introducing and reviewing economic geography literature in some other main languages, namely Chinese, Spanish and Portuguese. The purpose of doing so is not merely to show that there is more than Anglo-American economic geography, but also to derive from these non-English voices insights in how to move to an integrative paradigm of a truly international economic geography.Hassink, R.; Gong, H.; Marques, P. (2019). Moving beyond Anglo-American economic geography. International Journal of Urban Sciences. 23(2):149-169. https://doi.org/10.1080/12265934.2018.1469426S149169232Aalbers, M. B., & Rossi, U. (2009). Anglo-American/Anglophone Hegemony. International Encyclopedia of Human Geography, 116-121. doi:10.1016/b978-008044910-4.00246-7Bański, J., & Ferenc, M. (2013). «International» or «Anglo-American» journals of geography? Geoforum, 45, 285-295. doi:10.1016/j.geoforum.2012.11.016Barnes, T. J. (2002). Performing Economic Geography: Two Men, Two Books, and a Cast of Thousands. Environment and Planning A: Economy and Space, 34(3), 487-512. doi:10.1068/a3440Barnes, T. J. (2012). 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Environment and Planning A: Economy and Space, 39(6), 1282-1287. doi:10.1068/a39282Hassink, R., Hu, X., Shin, D.-H., Yamamura, S., & Gong, H. (2017). The restructuring of old industrial areas in East Asia. Area Development and Policy, 3(2), 185-202. doi:10.1080/23792949.2017.1413405Hassink, R., Klaerding, C., & Marques, P. (2014). Advancing Evolutionary Economic Geography by Engaged Pluralism. Regional Studies, 48(7), 1295-1307. doi:10.1080/00343404.2014.889815He, C., Zhu, S., & Yang, X. (2016). What matters for regional industrial dynamics in a transitional economy? Area Development and Policy, 2(1), 71-90. doi:10.1080/23792949.2016.1264867Hu, X., & Hassink, R. (2017). Exploring adaptation and adaptability in uneven economic resilience: a tale of two Chinese mining regions. Cambridge Journal of Regions, Economy and Society, 10(3), 527-541. doi:10.1093/cjres/rsx012Hu, X., & Hassink, R. (2016). Place leadership with Chinese characteristics? 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    Peculiarities in the Development of Special Economic Zones and Industrial Parks in Russia

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    open access journalThis paper investigates the process of developing and implementing Special Economic Zones (SEZs) and industrial parks in Russia. Governments commonly use SEZ policies to develop and diversify exports, create jobs, and launch technology and knowledge sharing. The industrial cluster concept is based on the significance of rivalry and supplier networks within the cluster, the combination of geographical specificities and government policies that lead to innovation and productivity growth. This study reveals that, in Russia, the government’s approach in developing these initiatives has strongly interfered with business activities and prevented the vital competitive and collaborative behavior of firms within these economic zones

    Critical geography in Germany: from exclusion to inclusion via internationalisation

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    Critical perspectives have become more visible in German human geography. Drawing on an analysis of the debate around the German reader "Kulturgeographie" published in 2003, we suggest that this case provides new insights into the "geography of critical geography". We briefly discuss the history of critical geography in Germany, leading to a comparison of the conditions of critical geography around 1980 and in recent years. The focus is on two factors in the changed role of critical perspectives in German geography: (1) the growing internationalisation of German geography, which opened new avenues and allowed new approaches to enter the discipline; and (2) the high citation indices of "critical" journals, which leads to an enhanced reputation and a high significance of international critical geography in the German discipline. However, we draw an ambiguous conclusion: the increased role of critical approaches in German geography is linked to a growing neoliberalisation of academia and a decline of critical approaches in other disciplines
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