Journal
JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION
Volume 73, Issue 9, Pages 659-674Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/0094965031000064463
Keywords
Laplace distribution; quantile regression; Bayesian analysis; Gibbs sampling; kuznets curve
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The paper proposes a Bayesian interpretation of quantile regression that is shown to be equivalent to scale mixtures of normals leading to a skewed Laplace distribution. This representation of the model facilitates Bayesian analysis by means of Gibbs sampling with data augmentation, and nests regression in the L-1 norm as a special case. The new methods are applied to an analysis of the patents - R&D relationship for U.S. firms and unit root inference for the dollar-deutschemark exchange rate.
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