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Currency substitution in selected African countries - Emerald

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<strong>Currency</strong><br />

<strong>substitution</strong><br />

635<br />

Figure 7.<br />

Impulse response<br />

functions – Tunisia<br />

real money demand <strong>in</strong> Zambia allows authorities to have an <strong>in</strong>dependent monetary<br />

policy. Impulse response functions <strong>in</strong> Figure 8 shows that the responses of real money<br />

demand to real output, deposit rate and expected change <strong>in</strong> exchange rate shocks are<br />

completely negligible. Only <strong>in</strong>novations <strong>in</strong> domestic <strong>in</strong>flationary expectations generate<br />

a negative response of real money until the 10th quarter and dye out afterwards <strong>in</strong> the<br />

long run. Also, disturbances <strong>in</strong> real money demand generate at first the most

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