1,721,103 research outputs found
Crises and the transformation of the national political space in Europe
Full text linkERC POLCON project funded
Participation and party choice: comparing the demand-side of the new cleavage across arenas
No full textDiverging Europe : the political consequences of the crises in a comparative perspective
Full text linkERC POLCON project funded
Actor Configurations and Coalitions in Contentious Episodes
Full text linkSo far, we have mapped what the three stylized actors did in the (more or less) contentious episodes, treating all three actors as unitary entities. This chapter takes the analysis a step further by describing features of the coalitions and actor configurations. In doing so, we answer who the actors involved in the conflicts over austerity and institutional reforms were and how they are typically related to each other. Available protest event studies on the Great Recession indicate at least three organizational features of the recent protest wave in Europe (e.g., Carvalho 2019; Diani and Kousis 2014; Hunger and Lorenzini 2019; Portos 2016, 2017; Portos and Carvalho 2019). First, they highlight the crucial role of institutionalized actors, particularly labor unions, in bringing the masses to the streets early on when the crisis hit the European continent in 2008 and 2009. Second, newly established and loose networks played an essential part in the southern European countries hit hardest by the crisis – the Portuguese Geração à Rasca, Democracia Real, and the Indignados in Spain as well as their Greek counterpart Aganaktismeni are illustrative of this dynamic. Third, the moment of such noninstitutionalized players who entered the protest scene tended to be relatively short lived, but, remarkably, even in Spain, there are indications of a process of institutionalization as formal organizations (trade unions and political parties) became more important in later phases of the protest wave
Conceptualizing, Measuring, and Mapping Contentiousness
Full text linkPortugal and Spain were among the countries hardest hit by the global financial crisis that led to the eurozone’s near collapse after the revelation of Greek public debt in late 2009. Both countries experienced a massive economic shock, as revealed by objective and subjective indicators (Chapter 3). Faced with a dire economic situation and increasing European pressure, the mainstream left in government – PS in Portugal and PSOE in Spain – announced severe austerity measures throughout 2009 and 2010 (Bremer and Vidal 2018). Consequently, the two countries saw union-organized protests against the measures early in the crisis (Accornero and Ramos Pinto 2015; Della Porta et al. 2017a; Kriesi et al. 2020; Portos 2019). Both countries experienced a turning point in 2011 when further noninstitutional actors entered the scene: Geração à Rasca [Screwed generation] in March 2011 in Portugal and 15M (named after the first large-scale protests on May 15, 2011) in Spain. According to some estimates, almost 5 percent of the Portuguese population took to the streets on March 12, 2011 (Carvalho 2018: 98). 15M and the battle cry of the central organizing network Democracia Real, Ya! [Real democracy now] led, after the first demonstration with about 20,000 participants on Puertas del Sol, to weeks of mass protests across the country
Gradient boosting for Dirichlet regression models
No full textIn various real-world applications, researchers often work with compositional data which appears as proportions, amounts or rates. As a framework for dealing with the unique nature of compositional data, Dirichlet regression models have been introduced. In this article, we propose a novel model-based gradient boosting approach for Dirichlet regression models embedded in the framework of generalized additive models for location, scale and shape. This approach allows for data-driven variable selection in low- as well as high-dimensional data settings. Moreover, the implementation enables the direct calculation of marginal effects for different predictor variables. Thus, it provides an alternative estimation procedure besides the well-established approach based on the maximum likelihood principle. After conducting detailed simulation studies to evaluate the performance of the estimation procedure regarding prediction accuracy and variable selection in low- and high-dimensional settings, we present a real-world application concerning the changes in election results in the Great Recession utilizing a large-scale European dataset. Using our proposed approach, we investigate the effect of protests on voting proportions of distinct party families while identifying important socioeconomic variables and their effect on those voting proportions via variable selection
Conceptualizing, measuring, and mapping contentiousness
No full textPortugal and Spain were among the countries hardest hit by the global financial crisis that led to the eurozone’s near collapse after the revelation of Greek public debt in late 2009. Both countries experienced a massive economic shock, as revealed by objective and subjective indicators (Chapter 3). Faced with a dire economic situation and increasing European pressure, the mainstream left in government – PS in Portugal and PSOE in Spain – announced severe austerity measures throughout 2009 and 2010 (Bremer and Vidal 2018). Consequently, the two countries saw union-organized protests against the measures early in the crisis (Accornero and Ramos Pinto 2015; Della Porta et al. 2017a; Kriesi et al. 2020; Portos 2019). Both countries experienced a turning point in 2011 when further noninstitutional actors entered the scene: Geração à Rasca [Screwed generation] in March 2011 in Portugal and 15M (named after the first large-scale protests on May 15, 2011) in Spain. According to some estimates, almost 5 percent of the Portuguese population took to the streets on March 12, 2011 (Carvalho 2018: 98). 15M and the battle cry of the central organizing network Democracia Real, Ya! [Real democracy now] led, after the first demonstration with about 20,000 participants on Puertas del Sol, to weeks of mass protests across the country
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