We propose a unified growth theory to investigate the mechanics generating the economic and demographic transition, and the role of mortality differences for comparative development. The framework can replicate the quantitative patterns in historical time series data and in contemporaneous...

This paper argues that the duration between successive children affects child survival (the sibling competition effect) while child survival too affects the duration between successive births (the child replacement effect). This inter-relationship is modelled in terms of a correlated...

This paper examines the determinants of infant mortality rates in a cross section of countries using a "growth regression" approach. The paper argues that infant mortality is a valid measure of living standards, worthy of study in its own right. It also shows that first order differential...