An analytic model comprising the various moves in error correction sequences in second-language classrooms is developed & applied to a database of classroom interaction with a view to relating teachers' corrective feedback with students' responses. The corpus was generated from…

This paper reports the results of surveys of specialists in labor economics and public
economics at 40 leading research universities in the United States. Respondents provided
opinions of policy proposals; quantitative best estimates and 95% confidence intervals for
economic parameters;…

This paper analyzes data on 11,600 students and their teachers who were randomly assigned to
different size classes from kindergarten through third grade. Statistical methods are used to
adjust for non-random attrition and transitions between classes. The main conclusions are:…

This paper examines the effect of technological change and other factors on the relative demand
for workers with different education levels and on the recent growth of U.S. educational wage
differentials. A simple supply-demand framework is used to interpret changes…

This paper analyzes the labor supply behavior of food and beverage vendors at a
single major league baseball stadium over an entire season. In contrast to the conven-
tional labor supply model, the vendors who I study are paid a…

I examine the extent to which workers who lose jobs find work in alterna-
tive employment arrangements such as temporary work, part-time work, and independent
contracting rather than as conventional full-time “regular” employees. The analysis is
based on data from…

This thesis examines the role nineteenth-century women's literary journals, specifically Ladies' Journal (1823--1833), played in the development of Russian literature. The longest-lived and most-circulated of the pre-Soviet women's literary journals, Ladies' Journal was well-positioned to have contributed to the on-going…

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