17 research outputs found

    Presidential Election Laws and Multipartism in Latin America

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    This article examines the interaction between the rules governing presidential elections and multipartism in Latin America. Data from 16 Latin American systems are examined through the use of a multivariate model to gain an understanding of the independent impact of presidential electoral formula (plurality vs. majority), the timing of presidential and legislative elections (concurrent vs. nonconcurrent) and legislative district magnitude on legislative multipartism, and by extension, on the number of relevant political parties operating in the nation. The findings demonstrate the strong and significant impact which formula and timing have on multipartism. They also point to the importance of examining the interaction between elections for different constituent institutions. Finally, they underscore the applicability of Duverger's law to presidential elections.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68710/2/10.1177_106591299404700103.pd

    Patient involvement in outcome measures for Psoriatic arthritis

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    Psoriatic arthritis (PsA) is a heterogeneous inflammatory arthritis with a varied clinical phenotype. There has been considerable international collaboration over recent years to develop and prioritise appropriate disease domains and outcome measures to capture all aspects of this complex disease. It has been recognised that patient-reported measures and physician assessments are complementary and, when used together, allow an improved reflection of disease burden. Taking this concept one step further, the experience in rheumatoid arthritis has demonstrated benefits of incorporating the patient perspective in the development of outcome measures. We report a systematic review demonstrating (1) that there has been little incorporation of the patient perspective in the development of outcome measures and domains in PsA, (2) the proceedings from the preliminary patient involvement in outcome measures for PsA (PIOMPSA) meetings, and (3) a proposed roadmap for improving patient involvement. © Springer Science+Business Media New York 2014
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