Le modèle de cycle de vie, une approche numérique
In: Revue de l'OFCE, Band 25, Heft 1, S. 173-198
The Life Cycle Model, a Numericalc Approach Françoise Charpin The purpose of this article in to determinate numerically the behaviour of consumption, saving and accumulation resulting from the application of the life cycle model. In its elementary version this model admits only one interest rate, which means that agents lend and borrow at the same rate. Consequently their debt is excessive, which is logical because there is no price to borrowing. To obtain plausible results, it is necessary to introduce different rates for lending and borrowing, with the first greater than the second. The model is then solved for various categories of workers. We also establish that for some agents consumption may depend solely on current income, which is the case in macroeconometrics, but did not appear in the elementary version of the life cycle model, where consumption depended on cumulated income.