The Optimal Degree of Commitment to an Intermediate Monetary Target
TL;DR: In this article, it is shown that the ideal central bank should place a large, but finite, weight on inflation, and a new framework for choosing among alternative intermediate monetary targets is proposed.
Abstract: Society can sometimes make itself better off by appointing a central banker who does not share the social objective function, but instead places "too large" a weight on inflation-rate stabilization relative to employment stabilization. Although having such an agent head the central bank reduces the time-consistent rate of inflation, it suboptimally raises the variance of employment when supply shocks are large. Using an envelope theorem, we show that the ideal agent places a large, but finite, weight on inflation. The analysis also provides a new framework for choosing among alternative intermediate monetary targets. I. INTRODUCTION It is now widely recognized that even if a country has a perfectly benevolent central bank (one that attempts to maximize the social welfare function), it may suffer from having an inflation rate which is systematically too high.' Suppose, for example, that a distortion (such as income taxation) causes the market rate of employment to be suboptimal. Then inflation can arise because wage setters rationally fear that the central bank will try to take advantage of short-term nominal rigidities to raise employment systematically. Only by setting high rates of wage inflation can wage setters discourage the central bank from trying to reduce the real wage below their target level. This paper considers some institutional responses to the timeconsistency problem described above. In particular, we examine the practice of appointing "conservatives" to head the central bank, or of giving the central bank concrete incentives to achieve an intermediate monetary target. Our analysis of intermediate monetary targeting is quite different from conventional analyses in which the central bank is rigidly constrained to follow a particular feedback rule. Indeed, an important conclusion is that it is not generally optimal to legally constrain the central bank to hit its intermediate target (or follow its rule) exactly, or to choose
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TL;DR: The authors argue that norms evolve in a three-stage "life cycle" of emergence, cascades, and internalization, and that each stage is governed by different motives, mechanisms, and behavioral logics.
Abstract: Norms have never been absent from the study of international politics, but the sweeping “ideational turn” in the 1980s and 1990s brought them back as a central theoretical concern in the field. Much theorizing about norms has focused on how they create social structure, standards of appropriateness, and stability in international politics. Recent empirical research on norms, in contrast, has examined their role in creating political change, but change processes have been less well-theorized. We induce from this research a variety of theoretical arguments and testable hypotheses about the role of norms in political change. We argue that norms evolve in a three-stage “life cycle” of emergence, “norm cascades,” and internalization, and that each stage is governed by different motives, mechanisms, and behavioral logics. We also highlight the rational and strategic nature of many social construction processes and argue that theoretical progress will only be made by placing attention on the connections between norms and rationality rather than by opposing the two.
5,761 citations
TL;DR: In this article, a review of the recent literature on monetary policy rules is presented, and the authors exposit the monetary policy design problem within a simple baseline theoretical framework and consider the implications of adding various real word complications.
Abstract: This paper reviews the recent literature on monetary policy rules. To organize the discussion, we exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real word complications. We concentrate on developing results that are robust across a reasonable variety of competing macroeconomic frameworks. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making credible commitments to fight inflation and consider the implications of frictions such as imperfect information and model uncertainty. Finally, we assess how proposed simple rules, such as the Taylor rule, square with the principles for optimal policy that we describe. We use this same metric to evaluate the recent course of U.S. monetary policy.
4,540 citations
TL;DR: In contrast to conventional wisdom, this paper showed that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level, and also considered the implications of frictions such as imperfect information.
Abstract: The paper reviews the recent literature on monetary policy rules. We exposit the monetary policy design problem within a simple baseline theoretical framework. We then consider the implications of adding various real world complications. Among other things, we show that the optimal policy implicitly incorporates inflation targeting. We also characterize the gains from making a credible commitment to fight inflation. In contrast to conventional wisdom, we show that gains from commitment may emerge even if the central bank is not trying to inadvisedly push output above its natural level. We also consider the implications of frictions such as imperfect information.
3,990 citations
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TL;DR: The authors analyzed the behavior of exchange rates, reserves, monetary aggregates, interest rates, and commodity prices across 154 exchange rate arrangements to assess whether official labels provide an adequate representation of actual country practice.
Abstract: In recent years, many countries have suffered severe financial crises, producing a staggering toll on their economies, particularly in emerging markets. One view blames fixed exchange rates“soft pegs”--for these meltdowns. Adherents to that view advise countries to allow their currency to float. We analyze the behavior of exchange rates, reserves, the monetary aggregates, interest rates, and commodity prices across 154 exchange rate arrangements to assess whether “official labels” provide an adequate representation of actual country practice. We find that, countries that say they allow their exchange rate to float mostly do not--there seems to be an epidemic case of “fear of floating.” Since countries that are classified as having a free or a managed float mostly resemble noncredible pegs--the so-called “demise of fixed exchange rates” is a myth--the fear of floating is pervasive, even among some of the developed countries. We present an analytical framework that helps to understand why there is fear of floating.
2,189 citations
TL;DR: The authors argue that the tendency of students of international political order to emphasize efficient histories and consequential bases for action leads them to underestimate the significance of rule-and identity-based action and inefficient histories.
Abstract: The history of international political orders is written in terms of continuity and change in domestic and international political relations. As a step toward understanding such continuity and change, we explore some ideas drawn from an institutional perspective. An institutional perspective is characterized in terms of two grand issues that divide students of international relations and other organized systems. The first issue concerns the basic logic of action by which human behavior is shaped. On the one side are those who see action as driven by a logic of anticipated consequences and prior preferences. On the other side are those who see action as driven by a logic of appropriateness and a sense of identity. The second issue concerns the efficiency of history. On the one side are those who see history as efficient in the sense that it follows a course leading to a unique equilibrium dictated by exogenously determined interests, identities, and resources. On the other side are those who see history as inefficient in the sense that it follows a meandering, path-dependent course distinguished by multiple equilibria and endogenous transformations of interests, identities, and resources. We argue that the tendency of students of international political order to emphasize efficient histories and consequential bases for action leads them to underestimate the significance of rule- and identity-based action and inefficient histories. We illustrate such an institutional perspective by considering some features of the coevolution of politics and institutions, particularly the ways in which engagement in political activities affects the definition and elaboration of political identities and the development of competence in politics and the capabilities of political institutions.
2,078 citations
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TL;DR: In this paper, it was shown that discretionary policy does not result in the social objective function being maximized, and that there is no way control theory can be made applicable to economic planning when expectations are rational.
Abstract: Even if there is an agreed-upon, fixed social objective function and policymakers know the timing and magnitude of the effects of their actions, discretionary policy, namely, the selection of that decision which is best, given the current situation and a correct evaluation of the end-of-period position, does not result in the social objective function being maximized. The reason for this apparent paradox is that economic planning is not a game against nature but, rather, a game against rational economic agents. We conclude that there is no way control theory can be made applicable to economic planning when expectations are rational.
7,652 citations
Posted Content•
TL;DR: In this article, the authors develop an example of a reputational equilibrium where the out-comes turn out to be weighted averages of those from discretion and those from the ideal rule.
Abstract: In a discretionary regime the monetary authority can print more money and create more inflation than people expect. But, although these inflation surprises can have some benefits, they cannot arise systematically in equilibrium when people understand the policymaker's incentives and form their expectations accordingly. Because the policymaker has the power to create inflation shocks ex post, the equilibrium growth rates of money and prices turn out to be higher than otherwise. Therefore, enforced commitments (rules) for monetary behavior can improve matters. Given the repeated interaction between the policymaker and the private agents, it is possible that reputational forces can substitute for formal rules.Here, we develop an example of a reputational equilibrium where the out-comes turn out to be weighted averages of those from discretion and those from the ideal rule. In particular, the rates of inflation and monetary growth look more like those under discretion when the discount rate is high.
3,265 citations
TL;DR: The authors reexamine Selten's model, adding to it a small amount of imperfect (or incomplete) information about players' payoffs, and find that this addition is sufficient to give rise to the reputation effect that one intuitively expects.
2,870 citations
Posted Content•
TL;DR: In this paper, a rational expectations equilibrium in a discretionary environment where the policymaker pursues a "reasonable" objective, but where precommitments on monetary growth are precluded is established.
Abstract: Natural-rate models suggest that the systematic parts of monetary policy will not have important consequences for the business cycle. Nevertheless, we often observe high and variable rates of monetary growth, and a tendency for monetary authorities to pursue countercyclical policies. This behavior is shown to be consistent with a rational expectations equilibrium in a discretionary environment where the policymaker pursues a "reasonable" objective, but where precommitments on monetary growth are precluded. At each point in time, the policymaker optimizes subject to given inflationary expectations, which determine a Phillips Curve-type tradeoff between monetary growth/inflation and unemployment. Inflationary expectations are formed with the knowledge that policymakers will be in this situation. Accordingly, equilibrium excludes systematic deviations between actual and expected inflation, which means that the equilibrium unemployment rate ends up independent of "policy" in our model. However, the equilibrium rates of monetary growth/inflation depend on various parameters, including the slope of the Phillips Curve, the costs attached to unemployment versus inflation, and the level of the natural unemployment rate. The monetary authority determines an average inflation rate that is "excessive," and also tends to behave countercyclically. Outcomes are shown to improve if a costlessly operating rule is implemented in order to precomrnit future policy choices in the appropriate manner. The value of these precommitments -- that is, of long-term agreements between the government and the private sector -- underlies the argument for rules over discretion. Discretion is the sub-set of rules that provides no guarantees about the government's future behavior.
2,465 citations
TL;DR: In this paper, the authors find that monetary growth and inflation are excessive and these rates depend on the slope of the Phillips curve, the natural unemployment rate, and other variables that affect the benefits and costs from inflation.
Abstract: A discretionary policymaker can create surprise inflation, which may reduce employment and raise government revenue. But when people understand the policymaker's objectives, these surprises cannot occur systematically. In equilibrium people form expectations rationally and the policymaker optimizes in each period, subject to the way that people form expectations. Then, we find that (1) the rates of monetary growth and inflation are excessive; (2) these rates depend on the slope of Phillips curve, the natural unemployment rate, and other variables that affect the benefits and costs from inflation; (3) the monetary authority behaves countercyclically; and (4) unemployment is independent of money policy. Outcomes improve if rules commit future policy choices in the appropriate manner. The value of these commitments--which amount to long-term contracts between the government and the private sector--underlies the argument for rules over discretion.
2,408 citations