compatibility and bundling of complementary goods in a duopoly this paper presents a simple model of compatibility and bundling in industries where consumers assemble several necessary components into a system that is close to their ideal the authors show that for a wide range of parameters firms will choose to produce compatible components but will offer discounts to consumers who purchase all components from the same firm however firms would be better off if they could commit not to provide such discounts furthermore the equilibrium tends to involve socially excessive bundling finally mixed bundling strategies tend to increase the range of parameters over which socially excessive standardization occurs copyright 1992 by blackwell publishing ltd

the liquidity trap and u s interest rates in the 1930s most current literature assumes that a central bank loses the ability to influence interest rates through variations in reserve supply as soon as overnight rates have been driven to zero i argue that reserve supply can be directly related to longer term rates when overnight rates are zero because banks reserve demand is then defined by the role of cash as an asset free of interest rate risk i present evidence that reserve supply affected longerterm interest rates in the u s from 1934 through 1939 while overnight rates were at the zero floor even when the changes in reserve supply reflected factors unlikely to have affected expectations of future overnight rates

exchange rate policy and the zero bound on nominal interest rates in this paper we study the effectiveness of monetary policy in a severe recession and deflation when nominal interest rates are bounded at zero we compare two alternative proposals for ameliorating the effect of the zero bound an exchange rate peg and price level targeting we conduct this quantitative comparison in an empirical macroeconometric model of japan the united states and the euro area furthermore we use a stylized micro founded two country model to check our qualitative findings we find that both proposals succeed in generating inflationary expectations and work almost equally well under full credibility of monetary policy however price level targeting may be less effective under imperfect credibility because the announced price level target path is not directly observable

theoretical analysis regarding a zero lower bound on nominal interest rates this paper explores several issues concerning a possible zero lower bound zlb including its theoretical rationale the magnitude of effects of low sustained inflation on real interest rates the validity of analyzing monetary policy in models with no monetary variables and the dynamic stabilizing properties of taylor rules in a zlb context the most important argument however is that if the short nominal rate is immobilized at zero there nevertheless exists a route for monetary stabilization policy to be effective via the foreign exchange market its quantitative importance is examined in a calibrated optimizing open economy model

monetary policy when interest rates are bounded at zero this paper assesses the importance of the zero lower bound on nominal interest rates for the interest rate channel of monetary policy we simulate several interest rate setting policy rules with ei

panel discussion price stability how should long term monetary policy be determined these comments address the question of monetary strategy as distinct from monetary tactics they are not directed at the question of what monetary policy is appropriate at the present time or of how monetary policy should be determined at any specific point as a function of prevailing conditions instead the issue i take is one that has been of increasing interest to economists in recent years what should be the long terrn objectives of the monetary authority increased interest in this issue as opposed to the issue of fine tuning the economy reflects the general intellectual consensus that has emerged on two points first what the monetary authority surely can control in the long run is the growth rate of nominal income second issues of dynamic consistency and commitment are crucial to the design of appropriate monetary policies beyond its recognition of these points my view is that most of what the academic economics community has had to say on the issue of long run monetary strategy has been tangential at best and i fear that many of the papers at this conference have not done much to improve the situation i wish to advance four propositions about monetary policy and to discuss their implications first an optimal tax theory has little or nothing to do with sensible inflation policy second positive rates of inflation are almost certainly desirable third to an important extent institutions do the work of rules and monetary rules should be avoided instead institutions should be drafted to solve time inconsistency problems fourth h j res 409 the proposed zero inflation amendment is a good idea if it is not taken too seriously or too literally but is instead viewed as a device for strengthening the independence of the federal reserve system my first proposition is that the connection between optimal tax theory and infla

price level targeting vs inflation targeting a free lunch price level targeting without base drift and inflation targeting with base drift are compared under commitment and discretion with persistence in unemployment price level targeting is often said to imply more short run inflation variability and thereby more employment variability than inflation targeting counter to this conventional wisdom under discretion a price level target results in lower inflation variability than an inflation target if unemployment is at least moderately persistent a price level target also eliminates the inflation bias under discretion and as is well known reduces long term price variability society may be better off assigning a price level target to the central bank even if its preferences correspond to inflation targeting a price level target thus appears to have more advantages than commonly acknowledged

alternative views of the money transmission mechanism what difference do they make for monetary policy this paper examines how alternative views of the monetary transmission mechanism affect the choice of a monetary policy rule the main finding is that many different structural models indicate that the same simple monetary policy rule one in which the central bank s target short term interest rate reacts to inflation and to real output would perform well such rules work well even in models where the monetary transmission mechanism has a relatively strong exchange rate channel the models differ however in their implications for more complex monetary rules prepared for the oxford review of economic policy this paper is an updated revised and shortened version of an earlier paper entitled the monetary transmission mechanism and the evaluation of monetary policy rules presented at the central bank of chile in september 20 21 1999 i am grateful to david vines for very helpful comments

inflation targeting as a monetary policy rule the purpose of the paper is to survey and discuss in ation targeting in the context of monetary policy rules the paper provides a general conceptual discussion of monetary policy rules attempts to clarify the essential characteristics of in ation targeting compares in ation targeting to other monetary policy rules and draws some conclusions for the monetary policy of the european system of central banks jel classi cation e42 e52

inflation output variance trade offs and optimal monetary policy the author estimates the inflation output gap variance trade off faced by monetary policymakers in the united states for policymakers who care about deviations of inflation around target and output around potential the estimated trade off represents the optimal policy frontier given the structure of the economy policymakers can do no better than to attain weighted variances of inflation and output that lie on the frontier the author finds that the variance trade off becomes quite severe when the standard deviation of inflation or output drops much below 2 percent this suggests that approximately balanced responses to policy goals are consistent with reasonable preferences over inflation and output variability copyright 1997 by ohio state university press

reassessing discretionary fiscal policy in 1992 president bush proposed legislation intended to speed up the recovery from the 1990 91 recession congress rejected this proposal for countercyclical fiscal policy stimulus in early 1993 president clinton proposed his own stimulus package but congress rejected this proposal too many reasons were given for deciding against these two discretionary fiscal policy proposals but perhaps the most common one was the large federal budget deficit in the early 1990s with the rapid disappearance of budget deficits in recent years this reason to vote against a discretionary fiscal stimulus is unlikely to be mentioned in the next economic cycle discretionary countercyclical fiscal policy again appears to be a politically feasible option but should america use it after so many years of disuse much has happened in macroeconomics since the 1960s and 1970s when discretionary countercyclical fiscal policy was last considered a serious option in the united states first monetary policy making has changed substantially over the last two decades the federal reserve s interest rate decisions have become more explicit more systematic and more reactive to changes in both inflation and output the fed has placed a greater emphasis on keeping inflation low the experience with this new policy has been very favorable inflation has been low since the early 1980s and the real economy has been more stable the 1980s and 1990s saw two lengthy expansions separated by a relatively short and mild recession in terms of the tradeoff between output variability and inflation

optimal discretionary monetary policy in a micro founded model with a zero lower bound on nominal interest rate abstract this paper investigates optimal discretionary monetary policy under the zero lower bound on the nominal interest rate zlb in the case of a distorted steady state due to monopoly and taxation solving a fully nonlinear micro founded fnl model using a global method i find that the central bank in a more distorted economy would cut the interest rate less aggressively under a particularly adverse demand shock this occurs because inflation and nominal interest rates are higher on average making the zlb less likely to bind and causing the economy to escape from the zlb sooner however the social planner would choose the optimal inflation rate of approximately zero the result emerges because the unconditional benefit of avoiding the zlb is not big enough to offset the cost of higher relative price dispersion when inflation is significantly positive in addition i show that the conventional linear quadratic lq method is inaccurate in the case of a sufficiently distorted steady state

sample selection and treatment effect estimation of lender of last resort policies this article develops a framework for estimating multivariate treatment effect models in the presence of sample selection the methodology deals with several important issues prevalent in policy and program evaluation including application and approval stages nonrandom treatment assignment endogeneity and discrete outcomes this article presents a computationally efficient estimation algorithm and techniques for model comparison and treatment effects the framework is applied to evaluate the effectiveness of bank recapitalization programs and their ability to resuscitate the financial system the analysis of lender of last resort lolr policies is not only complicated due to econometric challenges but also because regulator data are not easily obtainable motivated by these difficulties this article constructs a novel bank level dataset and employs the new methodology to jointly model a bank s decision to apply for assistance the lolr s decision to approve or decline the assistance and the bank s

risk premium shocks and the zero bound on nominal interest rates there appears to be a disconnect between the importance of the zero bound on nominal interest rates in the real world and predictions from quantitative dsge models recent economic events have reinforced the relevance of the zero bound for monetary policy whereas quantitative models suggest that the zero bound does not constrain optimal monetary policy

comment on theoretical analysis regarding a zero lower bound on nominal interest rates the sharp decline in interest rates in the past two decades has shifted attention to a new policy question do low interest rates interfere with the ability of a central bank to do its job some say the answer is yes according to them with rates low the central bank has lost the option to cut them further in the event of a bad economic shock 1 according to mccallum the right answer is no he asserts that the central bank has a second tool for stabilizing the economy the exchange rate he maintains that the central bank can stabilize the economy by exploiting its control over the exchange rate even if it cannot cut the interest rate because it is stuck on its zero lower bound according to mccallum s model exchange rate policy can even lift the economy out of the worst case scenario this occurs when the nominal rate of interest is zero and the expected future price level and exchange rate are sxed because the public srmly believes the central bank is committed to a price level target in this scenario a standard prescription for stimulating the economy reduce the real interest 1ate by committing to loose money in the future is ineffective according to mccallum s model this worst case scenario is not as big a problem as it might seem the central bank can still stimulate the economy by depreciating the currency through purchases of foreign exchange in my comment i make two points

dealing with monetary paralysis at the zero bound recently the key constraint for central banks is the zero lower bound on nominal interest rates central banks fear that if they push short term policy interest rates too deeply negative there will be a massive flight into paper currency this paper asks whether in a world where paper currency is becoming increasingly vestigial outside small transactions at least in the legal tax compliant economy there might be relatively simple ways to finesse the zero bound without affecting how most ordinary people live surprisingly this question gets little attention compared to the massive number of articles that take the zero bound as given and look for out of the box solutions for dealing with it in an inversion of the old joke it is a bit as if the economics literature has insisted on positing assume we don t have a can opener without considering the possibility that we might be able to devise one it makes sense not to wait until the next financial crisis to develop plans fundamentally there is no practical obstacle to paying negative or positive interest rates on electronic currency and as we shall see effective negative rate policy does not require eliminating paper currency

overcoming the zero bound on interest rate policy the paper proposes three options for overcoming the zero bound on interest rate policy a carry tax on money open market operations in long bonds and monetary transfers a variable carry tax on electronic bank reserves could enable a central bank to target negative nominal interest rates a carry tax could be imposed on currency to create more leeway to make interest rates negative quantitative policy monetary transfers and open market purchases of long bonds could stimulate the economy by creating liquidity broadly defined a central bank needs more fiscal support than usual from the treasury to pursue quantitative policy at the interest rate floor

monetary policy trade offs and the correlation between nominal interest rates and real output the authors present a structural model of the u s economy that combines their price contracting specification with a term structure relationship an aggregate demand curve and a monetary policy reaction function the model matches important features of postwar data well and provides a structural explanation of the correlation between real output and the short term nominal rate of interest the authors perform a battery of monetary policy experiments that show that as viewed through the lens of this model monetary policy has struck a good balance recently among competing monetary policy objectives copyright 1995 by american economic association

the robustness and efficiency of monetary policy rules as guidelines for interest rate setting by the european central bank abstract this paper examines the implications of recent research on monetary policy rules for practical monetary policy making with special emphasis on strategies for setting interest rates by the european central bank ecb the paper draws on recent research and new simulations of a large open economy model to assess the efficiency of a simple benchmark rule in comparison with other proposed rules further it stresses new results on the robustness of monetary policy rules in which each rule that is optimal or good according to one model or researcher is tested for robustness by other researchers using different models because of the large increase in the number of economists focussing on econometric evaluation of monetary policy rules for the interest rate instrument and because of the parallel increase in the variety of models being developed for this purpose much more evidence is becoming available on the robustness of simple monetary policy rules for the interest rate than ever before

monetary policy and the zero bound to interest rates a review1 this paper reviews the literature on what the zero bound to nominal interest rates implies for the conduct of monetary policy the aim is to evaluate the risks of hitting the zero bound and to evaluate policies that are said to be able to reduce that risk or policies that are proposed as means of helping the economy escape if it is in a zero bound trap i conclude that policies aimed at cure are arguably more uncertain tools than those aimed at prevention so prevention is a less risky strategy for policymakers but since the risks of hitting the zero bound seem quite small anyway and the risks of encountering a deflationary spiral smaller still it is conceivable that inflation objectives that typify modern monetary regimes already have more than enough insurance built into them to deal with the zero bound problem

estimates of the variance of u s inflation based upon the arch model it is generally agreed that the unpredictability of future inflation is a major component of the welfare loss associated with inflation perfectly predicted inflation might induce some costs through institutional rigidities governmental interference and transaction costs but in the long run these should be rather minimal as these institutions adopt various forms of indexing when inflation is unpredictable risk averse economic agents will incur a loss even if prices and quantities are perfectly flexible in all markets inflation is a measure of the relative price of goods today and goods tomorrow thus uncertainty in tomorrow s price impairs the efficiency of today s allocation decisions friedman in his nobel lecture 8 argues convincingly that higher variability of inflation would lead to decreased output ceteris paribus he then conjectures that higher rates of inflation are generally associated with higher variability of inflation and presumably greater uncertainty about future rates if this is true then higher rates of inflation would also be associated with low levels of output which implies a positively sloped phillips curve this paper uses a new statistical technique arch to estimate the conditional mean and variance of inflation from u s time series data the main finding is that the variance of inflation in the seventies was only slightly greater than in the sixties