This dissertation studies an old topic in a new perspective: distributive pattern of gender wage differentials globally. It is both interesting and crucial, especially for policy-makers who attempt to eliminate gender discrimination. In addition to the empirical importance, this dissertation also explores the applications of quantile decomposition, and creatively proposes the methodology of double decomposition in studying over-time change in gender wage gaps and formulate a discriminating search model. Chapters in this dissertation have been presented in many international academic...