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Policy Relevance of New Institutional Economics? Assessing Efficiency, Legitimacy and Effectiveness
(2009)Discussion paper series on the Coherence between institutions and technologies in infrastructuresWorking Paper -
Maximizing Modularity is hard
(2006)arXivSeveral algorithms have been proposed to compute partitions of networks into communities that score high on a graph clustering index called modularity. While publications on these algorithms typically contain experimental evaluations to emphasize the plausibility of results, none of these algorithms has been shown to actually compute optimal partitions. We here settle the unknown complexity status of modularity maximization by showing ...Working Paper -
The International Promotion of Political Norms in Eastern Europe: Qualitative Comparative Analysis
(2004)Center an Eastern Europe Working PaperSince the end of the Cold War, European regional organizations have been engaged in promoting the core norms of the emerging pan-European liberal international community in Eastern Europe: democracy and human rights (including minority rights) and the peaceful and integrative settlement of international and interethnic conflicts. When were these efforts effective? Starting from the two most prominent models in the literature on international ...Working Paper