Texas requires a school district to offer bilingual education when its enrollment of limited English proficient (LEP) students in a particular elementary grade and language is twenty or higher. Using school panel data, we find a significant increase in the probability that a district offers...

Despite the importance attributed to the effects of diversity on the stability and prosperity of nations, the origins of the uneven distribution of ethnic and cultural fragmentation across countries have been underexplored. Building on the role of deeply-rooted biogeographical forces in...

Even as research has begun to document that teachers matter, there is less certainty about what attributes of teachers make the most difference in raising student achievement. Numerous studies have estimated the relationship between teachers' characteristics, such as work experience and academic...

Words have appeared in visual art since classical times, but until the modern era their use was generally restricted to a few specific functions. In the early twentieth century, the Cubists Braque and Picasso began using words in their paintings and collages in entirely new ways, and their...

This paper explores the relationship between kinship institutions and sex ratios in India at the turn of the twentieth century. Since kinship rules varied by caste, language, religion and region, we construct sex-ratios by these categories at the district-level using data from the 1901 Census of...

This paper has three goals. The first (and perhaps the most important one) is to provide a new compilation of data on ethnic, linguistic and religious composition at the sub-national level for a large number of countries. This data set allows us to measure segregation of different ethnic,...

Although many modern studies find large and significant effects of prior colonial status on bilateral trade, there is very little empirical research that has focused on the contemporaneous impact of empire on trade. We employ a new database of over 21,000 bilateral trade observations during the...

We use a unique sample of Russian immigrants and natives in Israel to examine the return to English knowledge. In cross-section estimates there is a significant return to English knowledge for both immigrants and natives with high levels of education. Language acquisition is an important element...

Text data is ultra-high dimensional, which makes machine learning techniques indispensable for textual analysis. Text is often selected—journalists, speechwriters, and others craft messages to target their audiences' limited attention. We develop an economically motivated high dimensional...