本文關注的焦點有二。第一是衡量各國的工資不均與全球化的程度，第二是衡量工資不均與全球化之間的關係。本文採用Theil去衡量工資不均。爲了研究全球化與工資不均之間是否潛在著非線性的關係，本文引進了Hansen 門檻回歸。此外，除了使用文獻中常見的的貿易與國外直接投資作為衡量全球化的要素之外，本文在回歸模型中加入了推動全球化的潛在因素，例如教育。藉著實證研究，國外直接投資這個要素是模型中唯一具有門檻效果的變數，可以有效區分具有不同趨勢的樣本。對於接受較多國外直接國投資的國家群，當國外直接投資增加時，工資不均可望減緩。

The present thesis focuses on the measurement of cross-country degrees of globalization and wage inequality, as well as an understanding of the relationship between them. The Theil index is used to assess the wage inequality, while factor analysis is applied to measure the globalization in both developed and developing economies. To investigate a probable non-linear relationship between globalization and wage inequality, Hansen’s threshold regression method is applied. Aside from the conventional factors like trade and foreign direct investment (FDI), we also looked at another potential factor such as education in our regression model. The FDI factor is verified by empirical study as the only threshold variable which can split the samples into two groups of economies. For the high-FDI group, their economies seem to enjoy more equal wages as the FDI improves.

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