1,721,079 research outputs found
Pandemic leadership: beware of anecdotes
Leaders with science training have not outperformed other leaders in terms of their countries’ coronavirus responses, write Joachim Wehner (LSE) and Mark Hallerberg (Hertie School)
Going Beyond Counting First Authors in Author Co-citation Analysis
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
Explaining European Patterns of Taxation: From the Introduction of the Euro to the Euro-Crisis
This paper reviews developments in Europe from the eve of the introduction of the euro through the euro crisis. The paper begins with a discussion of the tax reform agenda. Although there are differences in the literature on specific taxes, and while European countries vary in their preferred levels of taxation, there is general consensus on the shape reforms should take. The paper then discusses the evolution of tax systems with the overall agenda in mind. It is found that overall revenue levels were broadly stable until just before the crisis, but marginal rates in corporate and top personal income declined almost continuously. During the crisis, however, this trend ended, with countries in the greatest fiscal difficulties raising tax rates and tax burdens. The last section provides a short analysis of why there were reforms in some countries but not others. Key variables include tax competition among member states, partisanship, underlying preferences in the population for redistribution, and the number of partisan veto players
Explaining Changes in Tax Burdens in Latin America: Does Politics Trump Economics?
This paper examines whether elections, which are generally held on fixed dates, and banking crises explain the timing of tax reforms and the allocation of the additional tax burden. Using an original fine-grained dataset of tax reforms, the paper finds support for the role of these two sources of variation. In particular, the probability of reform is higher during banking crises. During electoral periods, increasing taxes becomes highly unlikely, even if the government is facing financing problems. Interestingly, politics seem to trump economics: banking crises do not affect the probability of having a reform during electoral times. Moreover, the presence of an IMF program affects the tax instruments chosen: countries with a program increase the value-added tax, while those without raise the personal income tax. Finally, the ideology of the president does not explain who bears the additional tax burden
Variations on the Author
“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
Research Insights: How Do Economic Crises Affect Reforms to Fiscal Rules in Latin America?
Economic crises may favor reforms in fiscal rules, either because they increase the cost of maintaining fiscal imbalances or because these imbalances are behind the origin of the crises. Banking crises would not necessarily explain fiscal reforms in some democratic governments in the region. Financial crises favor reforms the longer the crisis extends over time. If the crisis turns into a sovereign debt crisis, fiscal reforms are much more likely
Appropriate Similarity Measures for Author Cocitation Analysis
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
Economic Crisis and Fiscal Reforms in Latin America
The recent financial crisis has initiated pressures for not only policy reform but also fundamental institutional fiscal reforms. This paper explores the connection between economic crises and fiscal institutional reforms in a region that has experienced plenty of both in recent years, namely Latin America. For that purpose it reviews the literature and provides five hypotheses about why, and under what circumstances, crises would promote reforms. The empirical evidence shows that debt crises make reforms more likely but banking crises on their own, if anything, reduce the pressure for fiscal institutional reforms. Political institutions are also important. If the electoral system encourages the personal vote, the country is more likely to reform. This evidence may become useful for predicting the likelihood of reforms in the developed world
Research Insights: Does Politics Trump the Ability of Having Successful Tax Reforms?
The probability of tax reform is higher during banking crises. Tax reform is unlikely to occur during election periodseven if the government is facing financing problemsso reforms that seek to raise taxes should be avoided at those times. The ideology of the president does not explain which taxes are reformed, or how they are changed, but the presence of an IMF program does
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