Abstract
A non-linear macrodynamic model is presented here to study possible stabilization policies in a financially unstable economy. Three policy rules will be considered, namely the interest rate rule (also called Taylor rule), the money supply rule and the fiscal policy rule. It will be shown that the interest rate rule can be used to stabilize a financially unstable economy on a ‘desired’ growth path. However, when the economy falls into a ‘liquidity trap’, the interest rate rule is ineffective, and therefore the fiscal policy rule should be employed. We also find a rule of money supply that can deal with the problem of government debt while the rest of the economy can still be stabilized on the ‘desired’ growth path.
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