We provide a new theory for nodewise regression when the residuals from a fitted factor model are used to apply our results to the analysis of maximum Sharpe ratio when the number of assets in a portfolio is larger than its time span. We introduce a new hybrid model where factor models are...

This working paper analyzes paid and unpaid work-time inequalities among Bolivian urban adults using time use data from a 2001 household survey. We identified a gender-based division of labor characterized not so much by who does what type of work but by how much work of each type they do. There...