> There is no mystery to declining birthrate - it correlates universally to economic development at state level Observably true. > which in turn is dependent

> There is no mystery to declining birthrate - it correlates universally to economic development at state level Observably true. > which in turn is dependent on increasing women labour force participation. Economic development does not happen without women entering the market economy I think you have your causation reversed there. Economic development allows women to enter the market economy. It does not require it.