Bo Malmberg and Thomas Lindh 2004
Demographic projections of age structure and correlations with GDP and GDP growth are used to study the forecasting properties of demographically based models. Extending the forecasts to 2050 suggests that due to fertility decreases poor countries will start to catch up with developed economies where the growth process will stagnate due to increases in the elderly population—whether or not indications of positive longevity effects are taken into account.