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Using New Keynesian models, we compare Friedman's k-percent money supply rule to optimal interest rate setting, with respect to determinacy, stability under learning and optimality. We first review the recent literature. Open-loop interest rate rules are subject to indeterminacy and instability...
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An economy exhibits structural heterogeneity when the forecasts of different agents have different effects on the determination of aggregate variables. Various forms of structural heterogeneity can arise and we study the important case of economies in which agents' behavior depends on forecasts...
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We study how the use of judgement or “add-factors” in macroeconomic forecasting may disturb the set of equilibrium outcomes when agents learn using recursive methods. We isolate conditions under which new phenomena, which we call exuberance equilibria, can exist in standard macroeconomic...
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Eine auf den Fundamentaldaten beruhende Regelbindung der Geldpolitik ohne Selbstverpflichtung, die bei vollkommen … geeigneter Weise in die optimale Geldpolitik einbezogen werden. Diese eindeutige Schlußfolgerung gilt auch dann, wenn sich der … wichtig es ist, die Geldpolitik angemessen zu gestalten und dabei nicht nur die Fundamentaldaten, sondern auch direkt die …
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