22 research outputs found

    Varieties of capitalism and institutional complementarities in the macroeconomy : an empirical analysis

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    Using aggregate analysis, this paper examines the core contentions of the "varieties of capitalism" perspective on comparative capitalism. We construct a coordination index to assess whether the institutional features of liberal and coordinated market economies conform to the predictions of the theory. We test the contention that institutional complementarities occur across sub-spheres of the macroeconomy by examining the correspondence of institutions across sub-spheres and estimating the impact of complementarities in labor relations and corporate governance on rates of growth. To assess the stability of the institutional features central to the theory, we assess the dynamics of institutional change in recent years. The evidence suggests that there are powerful interaction effects among institutions across sub-spheres of the political economy that must be considered if the economic impact of institutional change in any one sphere is to be accurately assessed.Mit Hilfe von Aggregatdaten analysiert dieses Papier Kernaussagen des "Varieties-of-Capitalism"-Ansatzes. Um beurteilen zu können, ob die Aussagen der Theorie mit den institutionellen Begebenheiten liberaler und koordinierter Ökonomien übereinstimmen, konstruieren wir einen ländervergleichenden Index der ökonomischen Koordination. Wir überprüfen die These von der institutionellen Komplementarität zwischen den verschiedenen Sphären politischer Ökonomien, indem wir das Zusammenwirken von Institutionen analysieren und den Einfluss komplementärer Institutionen der Arbeitsbeziehungen und der Unternehmenskontrolle auf die Höhe von Wachstumsraten untersuchen. Wir diskutieren darüber hinaus, wie stabil die institutionellen Begebenheiten in den vergangenen Jahren waren. Im Ergebnis zeigen sich starke Interaktionseffekte zwischen den Sphären politischer Ökonomien, die berücksichtigt werden müssen, um die wirtschaftlichen Wirkungen institutionellen Wandels in einzelnen Sphären zu verstehen

    Radiation of Extant Cetaceans Driven by Restructuring of the Oceans

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    The remarkable fossil record of whales and dolphins (Cetacea) has made them an exemplar of macroevolution. Although their overall adaptive transition from terrestrial to fully aquatic organisms is well known, this is not true for the radiation of modern whales. Here, we explore the diversification of extant cetaceans by constructing a robust molecular phylogeny that includes 87 of 89 extant species. The phylogeny and divergence times are derived from nuclear and mitochondrial markers, calibrated with fossils. We find that the toothed whales are monophyletic, suggesting that echolocation evolved only once early in that lineage some 36–34 Ma. The rorqual family (Balaenopteridae) is restored with the exclusion of the gray whale, suggesting that gulp feeding evolved 18–16 Ma. Delphinida, comprising all living dolphins and porpoises other than the Ganges/Indus dolphins, originated about 26 Ma; it contains the taxonomically rich delphinids, which began diversifying less than 11 Ma. We tested 2 hypothesized drivers of the extant cetacean radiation by assessing the tempo of lineage accumulation through time. We find no support for a rapid burst of speciation early in the history of extant whales, contrasting with expectations of an adaptive radiation model. However, we do find support for increased diversification rates during periods of pronounced physical restructuring of the oceans. The results imply that paleogeographic and paleoceanographic changes, such as closure of major seaways, have influenced the dynamics of radiation in extant cetaceans

    Combinatorial Mismatch Scan (CMS) for loci associated with dementia in the Amish

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    BACKGROUND: Population heterogeneity may be a significant confounding factor hampering detection and verification of late onset Alzheimer's disease (LOAD) susceptibility genes. The Amish communities located in Indiana and Ohio are relatively isolated populations that may have increased power to detect disease susceptibility genes. METHODS: We recently performed a genome scan of dementia in this population that detected several potential loci. However, analyses of these data are complicated by the highly consanguineous nature of these Amish pedigrees. Therefore we applied the Combinatorial Mismatch Scanning (CMS) method that compares identity by state (IBS) (under the presumption of identity by descent (IBD)) sharing in distantly related individuals from such populations where standard linkage and association analyses are difficult to implement. CMS compares allele sharing between individuals in affected and unaffected groups from founder populations. Comparisons between cases and controls were done using two Fisher's exact tests, one testing for excess in IBS allele frequency and the other testing for excess in IBS genotype frequency for 407 microsatellite markers. RESULTS: In all, 13 dementia cases and 14 normal controls were identified who were not related at least through the grandparental generation. The examination of allele frequencies identified 24 markers (6%) nominally (p ≤ 0.05) associated with dementia; the most interesting (empiric p ≤ 0.005) markers were D3S1262, D5S211, and D19S1165. The examination of genotype frequencies identified 21 markers (5%) nominally (p ≤ 0.05) associated with dementia; the most significant markers were both located on chromosome 5 (D5S1480 and D5S211). Notably, one of these markers (D5S211) demonstrated differences (empiric p ≤ 0.005) under both tests. CONCLUSION: Our results provide the initial groundwork for identifying genes involved in late-onset Alzheimer's disease within the Amish community. Genes identified within this isolated population will likely play a role in a subset of late-onset AD cases across more general populations. Regions highlighted by markers demonstrating suggestive allelic and/or genotypic differences will be the focus of more detailed examination to characterize their involvement in dementia

    Replication data for: Corruption in General Equilibrium: Political Institutions and Bureaucratic Performance in South America, 2007

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    A question of fundamental importance for the wellbeing of democratic governance is how the format of political institutions may be fashioned in order to prevent electoral victors from drawing upon the resources of the state to perpetuate themselves in power. This dissertation addresses this question by examining the consequences of democratic institutional design for levels of political corruption in three countries in South America: Bolivia, Brazil and Chile. The specific aspect of institutional design analyzed is the distinction between an open-list proportional representation (OLPR) electoral system and a closed-list proportional representation system (CLPR). Theoretical expectations are generated by a game-theoretic model which considers how the difference between the two systems may facilitate or impede corrupt 'contracts' from forming between party leaders and politically-oriented militants in the public administration. These expect ations are tested through the statistical analysis of an original public employees survey conducted in Bolivia (closed lists; 1038 participants in 14 institutions), Brazil (open lists; 1226 participants in 10 institutions) and Chile (open lists; 595 participants in 6 institutions). Based on the formal model, the dissertation argues that electoral systems which intensify legislative candidates’ demand for electoral resources and their willingness to engage in corruption (such as OLPR), may make extraction of resources from the state more difficult, thereby dampening the supply of corruption (relative to CLPR). The central idea is that CLPR, which gives parties the ability to rank candidates on closed ballots, allows party leaders to exert significant control ov er the future careers of politically-minded public servants. This, in turn, provides them with the ability to pressure civil servants to engage in illicit behaviors which redound to the benefit of the party. In order to test this proposition, the study develops statistical techniques appropriate for analyzing the survey data, which utilizes the randomized response survey methodology. Using these techniques, the study finds that, indeed, politically-oriented bureaucrats in the closed list case (Bolivia) were more inclined the use the resources of their institutions for partisan benefit than similar bureaucrats in the open list cases (Brazil and Chile), controlling for other factors relat ed to the incidence of illicit resource use

    Varieties of capitalism and institutional complementarities in the political economy: an empirical analysis

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    This article provides a statistical analysis of core contentions of the ‘varieties of capitalism’ perspective on comparative capitalism. The authors construct indices to assess whether patterns of co-ordination in the OECD economies conform to the predictions of the theory and compare the correspondence of institutions across subspheres of the political economy. They test whether institutional complementarities occur across these subspheres by estimating the impact of complementarities in labour relations and corporate governance on growth rates. To assess the durability of varieties of capitalism, they report on the extent of institutional change in the 1980s and 1990s. Powerful interaction effects across institutions in the subspheres of the political economy must be considered if assessments of the economic impact of institutional reform in any one sphere are to be accurate

    Varieties of capitalism and institutional complementarities in the macroeconomy: an empirical analysis

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    "Using aggregate analysis, this paper examines the core contentions of the 'varieties of capitalism' perspective on comparative capitalism. We construct a coordination index to assess whether the institutional features of liberal and coordinated market economies conform to the predictions of the theory. We test the contention that institutional complementarities occur across sub-spheres of the macroeconomy by examining the correspondence of institutions across sub-spheres and estimating the impact of complementarities in labor relations and corporate governance on rates of growth. To assess the stability of the institutional features central to the theory, we assess the dynamics of institutional change in recent years. The evidence suggests that there are powerful interaction effects among institutions across sub-spheres of the political economy that must be considered if the economic impact of institutional change in any one sphere is to be accurately assessed." (author's abstract)"Mit Hilfe von Aggregatdaten analysiert dieses Papier Kernaussagen des 'Varieties-of-Capitalism'-Ansatzes. Um beurteilen zu können, ob die Aussagen der Theorie mit den institutionellen Begebenheiten liberaler und koordinierter Ökonomien übereinstimmen, konstruieren die Autoren einen ländervergleichenden Index der ökonomischen Koordination. Sie überprüfen die These von der institutionellen Komplementarität zwischen den verschiedenen Sphären politischer Ökonomien, indem sie das Zusammenwirken von Institutionen analysieren und den Einfluss komplementärer Institutionen der Arbeitsbeziehungen und der Unternehmenskontrolle auf die Höhe von Wachstumsraten untersuchen. Die Autoren diskutieren darüber hinaus, wie stabil die institutionellen Begebenheiten in den vergangenen Jahren waren. Im Ergebnis zeigen sich starke Interaktionseffekte zwischen den Sphären politischer Ökonomien, die berücksichtigt werden müssen, um die wirtschaftlichen Wirkungen institutionellen Wandels in einzelnen Sphären zu verstehen." (Autorenreferat
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