1,721,052 research outputs found

    Supplementary Material 1 - Supplemental material for Attention Deficit Hyperactivity Disorder (ADHD) and Earnings in Later-Life Self-Employment

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    Supplemental material, Supplementary Material 1, for Attention Deficit Hyperactivity Disorder (ADHD) and Earnings in Later-Life Self-Employment by Pankaj C. Patel, Cornelius A. Rietveld and Ingrid Verheul in Entrepreneurship Theory and Practice</p

    The Persistence of Regional New Business Formation-Activity over Time – Assessing the Potential of Policy Promotion Programs

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    We investigate regional differences in the level and the development of regional new business formation activity. There is pronounced variance of start-up rates across regions. The level of regional new firm formation activity is rather path-dependent so that changes are relatively small. The main factors determining the level of regional start-up activity are innovation and entrepreneurship. In addition unemployment seems to play a role. These factors also appear to be responsible for changes in the level of regional new business formation activity and could be an appropriate starting point for policy measures trying to promote start-ups. Our empirical evidence strongly suggests that such measures may have significant effect only in the long run.

    The persistence of regional new business formation-activity over time: assessing the potential of policy promotion programs

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    We investigate regional differences in the level and the development of regional new business formation activity. There is a pronounced variance of start-up rates across the regions. The level of regional new firm formation is rather pathdependent so that changes are relatively small. The main factors determining the level of regional start-ups are innovation and entrepreneurship. These factors also seem to be responsible for changes in the level of regional new business formation. In addition, unemployment plays a role. Steering innovation and creating an entrepreneurial atmosphere could be an appropriate starting point for policy measures that try to promote start-ups. Our empirical evidence strongly suggests that such measures may have significant effect only in the long run. -- Wir analysieren regionale Unterschiede des Niveaus von Gründungsaktivitäten und dessen Entwicklung. Die regionalen Gründungsraten weisen eine ausgeprägte Streuung auf. Dabei ist eine deutliche Pfadabhängigkeit der Gründungsaktivitäten feststellbar, so dass Änderungen relativ gering ausfallen. Die wesentlichen Bestimmungsgründe für das Niveau der Gründungsaktivitäten sind Innovation und Unternehmertum. Diese Faktoren spielen auch für Veränderungen der regionalen Gründungsaktivitäten eine Rolle. Zusätzlich hat hier auch das Niveau der regionalen Arbeitslosigkeit einen Einfluss. Die Stimulierung von Innovationsaktivitäten und von Entrepreneurship stellen geeignete Ansatzpunkte für eine Politik dar, die auf eine Steigerung der Gründungsaktivitäten abzielt. Unser empirischer Befund weist allerdings darauf hin, dass ein wesentlicher Effekt solcher Maßnahmen erst längerfristig erwartet werden kann.New businesses,entrepreneurship,growth regimes,time lags,Regionalentwicklung,Unternehmensgründungen,Entrepreneurship,Wachstumsregime,Time Lags

    Economic Freedom and entrepreneurial Activity Some Cross-Country Evidence

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    While much attention has been devoted to analyzing how the institutional framework and entrepreneurship impact growth, how economic policy and institutional design affect entrepreneurship appears to be much less analyzed. We try to explain cross-country differences in the level of entrepreneurship by differences in economic policy and institutional design. Specifically, we use measures of economic freedom from the Economic Freedom of the World database to examine which elements of economic policy making and the institutional framework are responsible for the supply of entrepreneurship Our data on entrepreneurship are derived from the Global Entrepreneurship Monitor. The combination of these two datasets is unique in the literature. We find that the size of government is negatively correlated with entrepreneurial activity but that sound money is positively correlated with entrepreneurial activity. Other measures of economic freedom are not significantly correlated with entrepreneurship.Economic freedom, entrepreneurship, cross-country variation

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

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