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When You Can’t A/B Test: Measuring Campaign Lift with Google’s CausalImpact in Python
Some of the most important decisions in analytics are made without an A/B test. For example, a marketing campaign can
Measuring the Causal Effect of Free Shipping with Regression Discontinuity Design
When Amazon Prime launched in 2005, it changed delivery costs from a transaction cost into a membership benefit, something customers
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Women’s Education vs. Fertility Rate: A Global Pattern
Women’s education is one of the strongest predictors of fertility decline globally — 157 countries, r = -0.79. The pattern
Which EU Countries Export Pharmaceuticals, and Which Depend on Imports (2025 Data)
Ireland runs a €115bn surplus. Poland a €7bn deficit. Inside the EU’s uneven pharmaceutical trade map.
Did AI anxiety push people toward trade careers?
Search interest in “how to become a plumber” jumped after ChatGPT launched in late 2022. And has stayed elevated ever
FDI Inflows to Africa
Africa’s FDI inflows have increased every decade since 1970.Near zero then. $57B now. The continent needs this to continue. Investment