FIGHTING CHRONIC INFLATION WITH INTEREST RATES Cutting a Hydra's Heads with a Swiss Army Knife?

Interest rates do not have a good name. They seem effective in guiding monetary variables in normal circumstances, but have failed badly under duress. For instance, high interest rates have failed to stop inflation as they seriously jeopardized public and private sectors' balance sheets. Balance-sheet issues are well known and thus will be mostly ignored here. Instead, the paper will focus on equally important issues that besiege Emerging Market economies, EMs, namely, (a) imperfect credibility, (b) price inertia, and (3) shallow domestic capital markets, in the context of Interest-Rate-Based, IRB, stabilization programs, subject to Taylortype interest rules—which have received much less attention than non-IRB programs. This void deserves filling because several EMs that do not belong to a currency union have embraced interest rates as the instrument of choice, with the encouragement of the IMF. This paper shows that IRB plans tend to be associated inter alia with recession and occasional currency overvaluation, thus resembling money-based plans (even though money is endogenous!). Moreover, strictly following a Taylor rule could actually foster the existence of anticipated stepdevaluations under perfect capital mobility (!), and give rise to multiple equilibria. This strengthens the view that IRB plans should rely on complementary nominal anchors (e.g., the exchange rate), and make sure that the private sector does not take the mix of anchors as a signal of central bankers' incompetence or irrelevance.