This master thesis highlights the lack of information about some fuzzy economic concepts in Arabic and suggests a translation of many definitions, in French and English, given to three selected economic concepts along with an explanation and some examples as a solution to this problem. It gives, firstly, a brief overview of translation and its evolution over time, defines the Economics of Multilingualism, Multilingualism and Specialized Language among other important concepts. It also enumerates a range of difficulties encountered in English into Arabic translation. Finally, it makes a suggestions concerning whether the Arabic World can fill the lack of information about some new and important economic concepts