Quantitative analysis through competing lenses. The same data, argued from every side. You decide which case is strongest.
Across 170 countries, COVID vaccination coverage correlates with fertility at r = −0.53. More vaccination, fewer children. The signal replicates within the United States at r = −0.63. And it survives every single-variable control thrown at it.
But child mortality correlates with fertility at r = +0.85. Internet access at −0.82. Electricity at −0.81. Every development indicator is a stronger predictor than vaccination. And when you stack controls, the vaccine signal reverses.
Same data. Three analytical frameworks. Each makes the strongest case it can.