Estimating Ando-Modigliani Consumption Function Regarding the Kinds of Wealth in Iran

The main purpose of this study is to examine the household’s behavior in response to the kinds of the wealth and the estimation of marginal propensity to consume out of wealth. By using Ando-Modigliani consumption model and applying Engle-Granger co-integration strategy, marginal propensity to consume out of wealth is estimated in Iran during 1982-2008. The various forms of wealth as durable good, housing, bonds, savings, combinative and normal good are considered. Results show that households respond to kinds of wealth differently. This study finds that the marginal propensities to consume (MPCs) out of labor income and wealth, in the form of durable good, are 0.93 and 0.012, respectively. In addition, the MPCs out of labor income and wealth in the form of housing are 0.8 and 0.027, respectively. Regarding bonds as wealth, the corresponding MPCs are 0.67 and 0.055, respectively. For savings, the corresponding MPCs are 0.58 and 0.081, respectively. In combinative form of wealth, the computed MPCs are 0.7 and 0.04, respectively. Finally, considering normal goods as wealth, this study reaches the MPCs of orders 0.59 and 0.16, respectively. The long-run relationship shows that individuals’ MPC is about 0.79 apart from what types of wealth they hold. One important finding is liquidity allocation by individuals facing various kinds of wealth. This study indicates the fastest velocity of liquidation of savings and the lowest velocity of liquidation of durable goods.