Interesting Engineering on MSN

China develops world-first software to synchronize Earth and moon time

Researchers at the Purple Mountain Observatory in China have developed LTE440, an acronym for Lunar Time Ephemeris.

MIS vs. IT: Key Differences Explained for Business Success

Discover how MIS supports management decisions by organizing data, while IT focuses on technology infrastructure. Learn their ...

Understanding Pro Forma vs. GAAP Financial Statements: Key Differences

Discover the crucial differences between pro forma and GAAP financial statements. Learn why companies use both and the ...
National Bureau of Economic Research

Harvesting Differences-in-Differences and Event-Study Evidence

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 ...