It is also important to recognize the somewhat different macroeconomic implications of the interaction between fiscal and monetary policy in developing countries. For example, the monetary impact of fiscal policy is perhaps greater in developing countries because a much larger proportion of the fiscal deficit is financed by borrowing from the central bank. In a shallow capital market, the alternatives are few and far between. And, in developing countries, borrowing from the central bank is the principal source of reserve money which makes it the most important determinant of monetary expansion. This is no longer the case in most Latin American economies, but remains the reality in most other developing countries. Similarly, the fiscal impact of monetary policy is perhaps greater in developing countries, because, in situations where public debt is large as a proportion of GDP and interest payments on these debts are large as a proportion of government expenditure, even modest changes in interest rates exercise a strong influence on fiscal flexibility.