Comparing the economic and conventional approaches to financial planning

The conventional approach to retirement and life insurance planning, which is used throughout the financial planning industry, differs markedly from the economic approach. The conventional approach asks households to specify how much they want to spend before retirement, after retirement, and in the event of an untimely death of the head or spouse. It then determines the amounts of saving and life insurance needed to achieve these targets. The economic approach is based on the life-cycle model of saving. Its goal is to smooth households' living standards over their life cycles and to ensure comparable living standards for potential survivors. In the economic approach, spending targets are endogenous. They are derived by calculating the most the household can afford to consume in the present given that it wants to preserve that living standard in the future. Although spending targets under the conventional approach can be adjusted in an iterative process to approximate those^derived under the economic approach, there are practical limits to doing so. This is particularly the case for households experiencing changing demographics or facing borrowing constraints. This paper illustrate