Ruby Box is an experimental feature that provides separate spaces in a Ruby process to isolate application code, libraries, and monkey patches.

VAST is a library for program analysis and instrumentation of C/C++ and related languages. VAST provides a foundation for customizable program representation for a broad spectrum of analyses. Using ...

This paper surveys econometric innovations related to differences-in-differences estimators and to event-study models with time-varying treatment effects. Our discussion highlights tricky ...