We provide a new theory for nodewise regression when the residuals from a tted factor model areused. We apply our results to the analysis of the consistency of Sharpe Ratio estimators when there are many assets in a portfolio. We allow for an increasing number of assets as well as time...

Informality is pervasive in developing countries. In Bangladesh, the majority of firms are informal and as such they might not have access to prime markets, while lowering the tax base. The authors implemented an information campaign on registration, including both the step-by-step procedures...