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What influences national and foreign physicians’ geographic distribution? An an...
Russo, Giuliano; Ferrinho, Paulo; Sousa, Bruno de; Conceição, CláudiaBackground The debate over physicians’ geographical distribution has attracted the attention of the economic and public health literature over the last forty years. Nonetheless, it is still to date unclear what influences physicians’ location, and whether foreign physicians contribute to fill the geographical gaps left by national doctors in any given country. The present research sets out to investigate the cu...
A diagnostic plot for estimating the tail index of a distribution
Sousa, Bruno de; Michailidis, GeorgeThe problem of estimating the tail index in heavy-tailed distributions is very important in many applications. We propose a new graphical method that deals with this problem by selecting an appropriate number of upper order statistics. We also investigate the method’s theoretical properties are investigated. Several real datasets are analyzed using this new procedure and a simulation study is carried out to exa...
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