Money demand in China and time-varying cointegration

Many studies analyze the money demand using a (fixed coefficient) cointegrating regression model, which may not be appropriate to deal with the money demand of a transition economy like China. This paper investigates this issue using a time-varying cointegration approach based on the quarterly data from 1996 to 2009. We find some interesting results: (i) the estimates of the income elasticities are between 0.60 and 0.75, which are comparable with the previous studies; (ii) the estimated interest rate elasticity supports the argument that the overall effect of the interest rate on the money holding is weak although there are some mild evidences that it has been strengthened in recent years; (iii) the substitution effect of equity asset dominates the wealth effect, especially, during the bullish market period. Our result is robust to the alternative choices of the scale or opportunity cost variables and shows that omission of the stock prices in the money demand function would possibly yield a misspecification problem.

Research highlights► This paper deals with Chinese money demand by smooth time-varying cointegration approach. ► This paper identifies and highlights the role of stock price as another determinant of money demand. ► The estimate of income elasticity is around 0.6-0.75, which is comparable with existing literature. ► The estimated interest rate elasticity supports the argument that the overall effect of interest rate on money holding is weak.