Chinese is a highly complex language with internal variation unprecedented in most other languages. Yet, that does not mean Chinese is unique in the sense that it cannot be compared to other languages and new concepts need to be introduced for the description of it. This paper is dedicated to the question of how to apply the notion of…

This paper develops a scalar or quantitative measure of the "distance" between English and a myriad of other (non-native American) languages. This measure is based on the difficulty Americans have learning other languages. The linguistic distance measure is then used in an analysis of the determinants of English language proficiency…