According to National Taiwan University of Science and Technology Chair of Language Center[6] Su-Chiao Chen, language is considered to be a social value within this field, which researches social groups for phenomena like multilingualism and lingual conflict.[7] It has to do with who is 'authorized' to use what language, with whom and under what conditions. It has to do with how an individual or group identity is established by the language that they have available for them to use. It seeks to understand individual expression, which the investment in the linguistic tools that one has access to in order to bring oneself to other people.