The language policies of ethnic autonomous regions
研究了31个国家135个民族自治地区的官方语言地位、教学语言和强制语言学习，发现主体民族人口比例影响语言官方地位，民主制度促进主体民族语言教学，地区制度则无显著影响。
Official language recognition and language of education are often contentious in plural societies. Ethnic regional autonomy (ERA) enables local language policies. We examine official language status, language of instruction and compulsory language learning in 135 ERAs in 31 countries. We find titular ethnic languages are more likely to have official status in regions with larger titular ethnic populations. Titular ethnic languages are more likely to be used for instruction in democracies; regional institutions do not influence language policy. Results highlight the importance of local demographics and country institutional context and have implications for language practices and preservation in plural societies.