Scale variable specification in a money demand function for Malaysia

We investigate what scale variable is most appropriate in the money demand function for Malaysia. Candidates include income, consumption, disposable income, and domestic absorption and these are considered for simple sum M1 and M2 and for Divisia M1 and M2. Non-nested tests and other model selection criteria such as R² are used. The non-nested tests for the M1 aggregates are inconclusive but more support is given for income as the scale variable for the M2 aggregates, especially for Divisia M2. The other procedures also show that income is preferred for M2 and some support is also given for income for the M1 aggregates.