Causality Tests and the Relative Effectiveness of Monetary and
Fiscal Policies in Pakistan
The Granger and the Sims causality tests as applied to annual data from Pakistan for the period 1971-72 to 1989-90, help us in arriving at identical conclusions even though in the former test growth rates of the relevant variables were used and in the latter natural logged and filtered variables were used. Both tests detected unidirectional causality running from monetary variables (monetary base and money stock) to nominal GNP in Pakistan for the period under study. Both tests also suggest that there is unidirectional causality running from nominal GNP to the total government expenditure in Pakistan for the period under study. The findings of the study suggest that changes in monetary variables do exert their influence on economic activity, represented by the nominal GNP, in Pakistan. The results of the study also provide some evidence that changes in total government expenditure rather than causing changes in the nominal GNP in Pakistan, are rather influenced by the changes in the nominal GNP. Thus, the findings of the study suggest that the monetary policy was relatively more effective than the fiscal policy in influencing the nominal GNP in Pakistan, during the period under study.