Heavy-tailed distributions present a tough setting for inference. They are also common in industrial applications, particularly with internet transaction datasets, and machine learners often analyze such data without considering the biases and risks associated with the misuse of standard tools....

Sampling units for the 2013 Methods-of-Payment survey were selected through an approximate stratified two-stage sampling design. To compensate for nonresponse and noncoverage and ensure consistency with external population counts, the observations are weighted through a raking procedure. We...

When there are few treated clusters in a pure treatment or difference-in-differences setting, t tests based on a cluster-robust variance estimator can severely over-reject. Although procedures based on the wild cluster bootstrap often work well when the number of treated clusters is not too...

"Rockin' ROI is a beginner's guide to marketing for ecommerce entrepreneurs who need results from the get-go, while avoiding common costly pitfalls. Learn the three successive phases to successful marketing: planning, then content, followed by promotion. Posing initial critical questions lays...

In this empirical study, we analyze the relationship between carry trade positions and some key financial as well as macroeconomic variables using a multivariate threshold model. It is often stated that the Swiss franc serves as a funding currency. We therefore focus on carry trades based on the...

This paper quantitatively analyzes how firms' default rates are affected by intangible assets, which play a crucial role in business management but are difficult to assess objectively. We use intangible assets such as firms' technological capability and the qualifications of senior management,...