have trading rule profits in the currency markets declined over time abstract previous studies have reported mixed results regarding the success of technical trading rules in currency markets abnormal returns were observed in many studies using data up to the mid 1980s while more recent studies generally report less success for technical trading rules this paper tests whether moving average trading rule profits have declined over the period from 1971 to 2000 if so previous profits may represent a temporary inefficiency that has since been eliminated in the currency markets the hypothesis is tested using 18 exchange rate series over a longer time period than in previous studies rules are optimized for successive 5 year in sample periods from 1971 to 1995 and tested over subsequent 5 year out of sample periods results show that risk adjusted trading rule profits have declined over time from an average of over 3 in the late 1970s and early 1980s to about zero in the 1990s thus market inefficiencies reported in previous studies may have been only temporary inefficiencies

a re evaluation of the relation between wages and unemployment in the united kingdom this paper examines the long run or equilibrium relationship between wages prices and the unemployment rate in the united kingdom using annual data covering the period 1860 1999 using johansen s maximum likelihood method of testing for cointegration two long run relations are found in a small system of four variables the first relation depicts the co movement of the level of real wages adjusted for productivity together with the unemployment rate and the rate of inflation the second relation shows the co movement between the rate of inflation and deviations of productivity from its trend growth

the choice of a monetary instrument in a small open economy the case of korea abstract using a small macroeconometric model of korea this paper evaluates the correct choice of a monetary instrument either the money stock or the interest rate the optimal multiperiod policy and the value of current information on some monetary varialbles

intraday technical trading in the foreign exchange market this paper examines the out of sample performance of intraday technical trading strategies selected using two methodologies a genetic program and an optimized linear forecasting model when realistic transaction costs and trading hours are taken into account we find no evidence of excess returns to the trading rules derived with either methodology thus our results are consistent with market efficiency we do however find that the trading rules discover some remarkably stable patterns in the data

non linear hybrid exchange rate modeling and trading profitability in the foreign exchange market abstract a neuro fuzzy decision making technology is designed and implemented to obtain the optimal daily currency trading rule it is found that a non linear artificial neural network exchange rate microstructure hybrid model combined with a fuzzy logic controller generates a set of trading strategies that earn a higher rate of return compared to the simple buy and hold strategy after accounting for realistic transaction costs the gains from utilizing a dynamic neuro fuzzy model are still present

some issues concerning interest rate pegging price level determinacy and the real bills doctrine abstract in a recent paper canzoneri henderson and rogoff have shown that it is possible for the monetary authority to peg the nominal interest rate without creating price level indeterminacy in a simplified version of the 1975 sargent wallace model the present paper begins by reviewing that result which involves a limiting case of a money supply rule that depicts the authority as responding to current values of the interest rate then it shows that there exists an alternative rule that will peg the nominal rate without creating indeterminacy but that this rule induces a different pattern of price level fluctuations next the paper considers whether indeterminacy will prevail if the authority tries to effect a peg in a third way by simply standing ready to buy and sell securities at the desired rate finally the implications of the foregoing results are drawn for arguments concerning the real bills doctrine and some critical comments are directed at the recent attempted rehabilitation of that doctrine by sargent and wallace

central bank preferences and macroeconomic equilibrium abstract we investigate the behavior of an optimizing monetary authority in an economy described by a simple as ad model we develop a simple methodology for deriving the optimal policy and the associated model solution for various forms of the authority s objectives in our empirical work we focus on one of these specifications in which the authority cares about both the rate of inflation and the level of price innovations which boost real output in our model along the lines of barro and gordon 1983b estimating the model on post war us data we find that the revealed weight on price surprises is significant but only around a third of that on inflation the estimated elasticity of output with respect to price surprises is around one quarter but statistically insignificant

a little bit more evidence on the natural rate hypothesis from the u k abstract the evidence for the neutrality of anticipated changes in monetary policy in the u k over the period 1963q1 1982q1 is examined breaks in the stochastic process generating the money stock are used to identify the model the results are generally unfavourable to the proposition that only unanticipated money matters

a variance ratio test of random walks in foreign exchange rates the separate variance ratio tests under homoscedasticity and heteroscedasticity both provide evidence rejecting the random walk hypothesis using five pairs of weekly nominal exchange rate series over the period from august 7 1974 to march 29 1989 the rejections cast doubt on the random walk hypothesis in exchange rates which has received support in the existing literature furthermore since the rejections are robust to heteroscedasticity they suggest autocorelations of weekly increments in the nominal exchange rate series which may be consistent with the exchange rate overshooting or undershooting phenomenon in the past decade there has been a consensus that nominal exchange rates follow a random walk process since a unit root and uncorrelated increments are both required for a random walk process the random walk is usually supported in the existing literature either because a unit root component is detected in the exchange rate series or because the increment in the exchange rate is found to be serially uncorrelated for example meese and singleton 1982 and baillie and bollerslev 1989 both find a unit root component in the exchange rate series and the evidence provided in giddy and dufey 1975 cornell and dietrich 1978 logue sweeney and willett 1978 and hsieh 1988 all suggest that the exchange rate series contains uncorrelated increments in this paper the random walk hypothesis for the nominal exchange rate series is reexamined by applying a variance ratio test developed in lo and mackinlay 1988 to five pairs of weekly nominal exchange rate series over the period from august 7 1974 to march 29 1989 while there are two implications of the random walk unit root and uncorrelated increments this paper focuses on the uncorrelated increments aspect this is not only because there are some important departures from the random walk that unit root test cannot detect but also because the autocorrelation aspect may yield

estimating money demand functions the question of which functional forms of money demand regression equations are useful for empirical work is addressed here specifically it is argued that a functional form that focuses attention on the ability of the growth rate of nominal money to predict the inflation rate is a useful way of summarizing empirical evidence on the existence of a stable money demand function the results of estimating and simulating this functional form as well as standard functional forms are presented in the final part of this paper a typical equation expressing the public s demand for real money balances m is as follows

determinacy and identification with taylor rules the new keynesian taylor rule theory of inflation determination relies on explosive dynamics by raising interest rates in response to inflation the fed induces ever larger inflation unless inflation jumps to one particular value on each date however economics does not rule out explosive inflation so inflation remains indeterminate attempts to fix this problem assume that the government will choose to blow up the economy if alternative equilibria emerge by following policies we usually consider impossible the taylor rule is not identified without unrealistic assumptions thus taylor rule regressions do not show that the fed moved from passive to active policy in 1980

monetary policy with interest on reserves abstract i analyze monetary policy with interest on reserves and a large balance sheet i show that conventional theories do not determine inflation in this regime so i base the analysis on the fiscal theory of the price level i find that monetary policy can peg the nominal rate and determine expected inflation with sticky prices monetary policy can also affect real interest rates and output though higher interest rates raise output and then inflation the conventional sign requires a coordinated fiscal monetary policy contraction i show how conventional new keynesian models also imply strong monetary fiscal policy coordination to obtain the usual signs i address theoretical controversies a concluding section places our current regime in a broader historical context and opines on how optimal fiscal and monetary policy will evolve in the new regime

comment on endogenous objectives and the evaluation of targeting rules for monetary policy 1 four mccallum principles itis bothanprivilege andapleasureformetoparticipateinthisconferenceinhonorofbennettt mccallum henceforthbtm thus beforeproceedingtomakespeci c comments regarding carl walsh s elegant paper on endogenous objectivesand targeting rules i would like to begin by providing some context in light ofbtm snumerouscontributionstotheanalysisofmonetarypolicy forthispurpose itishelpfultohighlightfourbasicprinciplesofeffectivemonetarypolicythatbtmhas consistently emphasized over the past several decades given the logicalcoherencyandintuitiveappealofhisworkonthissubject itisonlynaturaltorefertothesefourpointsasthe mccallumprinciples the rstmccallumprincipleisthatmonetarypolicymatters thatis theconductof monetary policy can have important consequences for social welfare btmanalyzedthetheoreticalandempiricalunderpinningsofthisprincipleinaseriesof

money stock targeting base drift and price level predictability lessons from the u k experience abstract it is controversial whether money stock targeting without base drift i e following a trend stationary growth path makes the price level more predictable in the presence of permanent shocks to money demand we develop a procedure that is not subject to the lucas critique applying this procedure to the case of the u k we find that the variance of the trend inflation rate in the u k would have been reduced by more than one half if the bank of england had not allowed base drift

market efficiency of brazilian exchange rate evidence from variance ratio statistics and technical trading rules abstract this study utilizes the variance ratio test to examine the behavior of brazilian exchange rate we show that adjustments for multiple tests and a bootstrap methodology must be employed in order to avoid size distortions we propose a block bootstrap scheme and show that it has much nicer properties than the traditional chow denning chow k v denning k c 1993 a simple multiple variance ratio test journal of econometrics 58 3 385 401 multiple variance ratio tests overall the method proposed in the paper provides evidence refuting the random walk behavior for the brazilian exchange rate for long investment horizon but consistent with the random walk hypothesis for short run horizon additionally we also test for the predictive power of variable moving average vma and trading range break trb technical rules and find evidence of forecasting ability for these rules nonetheless the excess return that can be obtained from such rules is not significant suggesting that such predictability is not economically significant

the trade off interpretation of phillips s dynamic stabilization exercise this paper which examines phillips s famous curve is based on phillips s private papers and the london school of economics methodology measurement and testing seminar records sources previously thought to be lost these sources plus phillips s theoretical work suggest that the equilibrium menu of choice is a misinterpretation of phillips s dynamic stabilization exercise phillips had a clearly articulated role for inflationary expectations in his model and had no toleration for the notion that ongoing inflation could purchase sustainable reductions in the rate of unemployment evidence is cited which indicates that milton friedman was profoundly influenced by phillips s analysis of inflationary expectations

short and long interest rate targets can both short and long term interest rates be targeted independently can the target of the term structure help solve the problem of multiplicity of equilibria that occurs when only the short rate is targeted both questions are addressed and the answer is yes to both

the efficiency of financial futures markets tests of prediction accuracy abstract the prices of financial futures contracts can be interpreted as forecasts of the spot rates which will apply at the final delivery date of that contract financial futures contracts have been traded daily since the early 1980s and provide a substantial bank of data to test the forecasting efficiency of such contracts tests are carried out to examine whether the interest rates implied by the futures price for eurodollar and short sterling contracts are cointegrated with the final settlement price over forecasting horizons of 1 2 and 3 months similar analysis is carried out for the yen dollar exchange rate futures contract the paper then examines the forecasting performance of the three contracts over the forecasting horizons of 1 2 and 3 months and in particular whether the forecasts implied by the futures contract provide better predictions than the naive no change i e random walk a vector error correction model vecm or an arima model an examination of the relative efficiency of the markets for the three markets over the three time horizons is carried out and finally trading strategies are simulated to see whether excess profits can be achieved in fact the results suggest that both profits and losses would be attracted

unemployment in britain male unemployment in britain has risen from around 2 per cent in the 1950s to around 17 per cent in 1985 see figure 1 the figures are for male unemployment because there is no consistent series for women 1 even more remarkably unemployment has fallen in only three years out of the last twenty 1973 1978 and 1979 to account for this we need a model that explains both changes in the natural or non accelerating inflation rate of unemployment nairu and deviations from it we use a three equation supply side model centred on the labour market this has two main features the first concerns the determination of employment in the short run the labour demand function that we use cuts through the fruitless debate now raging especially in europe as to whether current unemployment is classical or keynesian according to the classical view employment is too high because real wages are too high according to the keynesian view real wages are not binding and unemployment is high because the product market does not clear with prices too high relative to nominal demand the whole debate is set in the framework of perfect competition yet in perfect competition prices are set by impersonal forces and it is not clear what could possibly stop prices clearing the market it is much more reasonable to think of prices as being set by imperfectly competitive firms existing prices being the best they can think of given the demand they face in this context firms demand for labour will depend on both the real product wage and the level of real aggregate demand this is the demand function we estimate and it conforms both to common sense and to the data however this does not imply that employment can be made to grow without limit by pumping up real demand for in the medium term when price surprises are eliminated our model determines three variables employment real wages and real demand on the basis of three equations an employment equation a price equation and a wage equation thus in the medium term there is a natural level of employment and corresponding to this a natural level of real aggregate demand the second key feature of our model concerns the medium term determination of unemployment in the medium term the planned mark up of wages over prices in wage settlements must be consistent with the mark up of prices over wage costs in employers pricing behaviour for if wage setters try to set real product wages higher than is consistent with employers pricing behaviour this generates ever increasing inflation thus the key to understanding unemployment in the medium term is the behaviour of wage setters if events occur that push them towards too high real wages then unemployment has to rise to offset these influences we shall call these influences wage pressure variables or push factors and they are clearly crucial in understanding unemployment the variables here include the social security system employment protection

can we improve the structure of financial systems 1993 the main theme of this paper is that several of the characteristics of our present western monetary and banking systems have been crucially dependent on the particular temporal process of historical development and are not an essential feature of more fundamental preferences or technological conditions they exist in part because we take them for granted it is the purpose of this paper to examine what might change in both theory and practice if some of these inessential characteristics were to be changed

patterns in stock market movements tested as random number generators this paper shows that tests of random number generators rngs may be used to test the efficient market hypothesis emh it uses the overlapping serial test ost a standard test in rng research to detect anomalous patterns in the distribution of sequences of stock market movements up and down our results show that most stock markets exhibit idiosyncratic recurrent patterns contrary to the efficient market hypothesis also that ost detects a different kind of non randomness to standard econometric long and short memory tests exposure of these anomalies should contribute to making markets more efficient

on non uniqueness in rational expectations models an attempt at perspective abstract many macroeconomic models involving rational expectations give rise to an infinity of solution paths even when the models are linear in all variables some writers have suggested that this non uniqueness constitutes a serious weakness for the rational expectations hypothesis one purpose of the present paper is to argue that the non uniqueness in question is not properly attributable to the rationality hypothesis but instead is a general feature of dynamic models involving expectations it is also argued that there typically exists in a very wide class of linear rational expectations models a single solution that excludes bubble or bootstrap effects one that occur only because they are arbitrarily expected to occur a systematic procedure for obtaining solutions free from such effects is introduced and discussed in addition this procedure is used to interpret and reconsider several prominent examples with solution multiplicities including ones developed by fischer black and john b taylor

indeterminacy bubbles and the fiscal theory of price level determination abstract the recently developed fiscal theory of price level determination contends that there is an important class of policy rules in which there exists a unique rational expectations solution that shows the price level to be dependent upon fiscal policy and independent of monetary variables the present paper argues however that there is an alternative solution to these models that has entirely traditional or monetarist properties this latter solution is arguably more plausible since it is the solution that is typically regarded as the bubble free fundamentals solution the paper s analysis involves the specification of feasible instrument variables

technology shocks in the new keynesian model in the new keynesian model preference cost push and monetary shocks all compete with the real business cycle model s technology shock in driving aggregate fluctuations a version of this model estimated via maximum likelihood points to these other shocks as being more important for explaining the behavior of output inflation and interest rates in the postwar u s data these results weaken the links between the current generation of new keynesian models and the real business cycle models from which they were originally derived they also suggest that federal reserve officials have often faced difficult trade offs in conducting monetary policy

unemployment a survey this paper presents a survey of the economics of unemployment it covers competitive and imperfect competition models the role of different methods of wage determination and explanation of postwar unemployment patterns in the oecd countries copyright 1990 by royal economic society

price level determinacy with an interest rate policy rule and rational expectations abstract this paper reconsiders a result obtained by sargent and wallace namely that price level indeterminacy obtains in their model if the monetary authorities adopt a feedback rule for the interest rate rather than the money stock it is shown that the indeterminacy vanishes if the interest rate rule is chosen so as to have a desired effect on the expected quantity of money demanded this holds even if considerable weight is given in the choice of a rule to the aim of smoothing interest rate fluctuations

beating the foreign exchange market filter rule profits found in foreign exchange markets in the early days of the current managed float persist in later periods as shown by statistical tests developed and implemented here the test is consistent with but independent of a wide variety of asset pricing models the profits found cannot be explained by risk if risk premia are constant over time inclusion of the home foreign interest rate differential in computing profits has little effect on the comparison of filter returns to those of buy and hold in the early years of the generalized managed floating that began in march 1973 filter rule profits in excess of buy and hold were found for many countries logue sweeney and willett 18 dooley and shafer 6 cornell and dietrich 5 it was unclear however whether such profits indicated inefficiencies first it was not clear that risk was adequately handled in such tests and often risk was ignored second there was no evidence such profits would be available postsample and third there was no statistical test of the significance of these profits this paper uses the logic of risk return tradeoffs to analyze the role of risk in such tests and illustrates the logic in a discussion using the sharpe lintner capital asset pricing model capm although a breeden consumption based capm a merton intertemporal capm or an arbitrage pricing model apm could easily be used the paper develops a test of statistical significance appropriate to foreign exchange markets section i analyzing the rate of return on foreign exchange speculation less the foreign domestic interest rate differential the test explicitly assumes that risk premia are constant over the sample the excess rates of return observable in using filters in going from a risk free dollar asset to a risk free deutsche mark dm asset persist into the 1980 s section ii and this is true even when taking account of transactions costs it turns out that these results for the dm case do not depend very much on the interestrate differential but primarily on exchange rate behavior this is useful to know because it is often quite difficult to find matching interest rate data of high quality for a sample of nine other currencies using only exchange rates section iii shows that the excess returns made in the first 610 days of the float persist in the next 1 220 days into the 1980 s dooley and shafer 7 find similar persistence in experiments that do not use buy and hold and have no significance tests when filter rule profits have been found in spot exchange markets it has often been argued that the profits are due to risk this paper uses the capm to analyze rates of return both to buy and hold and to filter strategies it turns out that the claremont mckenna college and claremont graduate school arthur d warga douglas joines and thomas d willett offered helpful comments and ning ning koo provided research assistance

how the world achieved consensus on monetary policy the worldwide progress in monetary policy is a great achievement and especially considering the situation 30 years ago a remarkable success story i describe how the world achieved a working consensus on the core principles of monetary policy by the late 1990s i survey the muddled state of affairs in the 1970s and then ask what happened in federal reserve policy to produce an understanding of the practical principles of monetary policy how did formal institutional support for targeting low inflation abroad follow from an international acceptance of these ideas and how did a consensus theoretical model develop in academia i explain how the modern theoretical consensus known alternatively as the new neoclassical synthesis or the new keynesian model of monetary policy reinforces key advances the priority for price stability the targeting of core rather than headline inflation the importance of credibility for low inflation and preemptive interest rate policy supported by transparent objectives and procedures of course a working consensus does not constitute complete agreement accordingly the conclusion identifies important monetary policy issues that remain to be explored

the conformity of wage indexation models with stylized facts in a recent paper bennett mccallum 1982 lists what he considers to be prominent empirical regularities or stylized facts of aggregate economies in particular he notes that output and employment magnitudes are strongly related to contemporaneous money stock surprises but that output and employment magnitudes are not strongly and positively related to contemporaneous price level surprises p 4 these facts have prompted mccallum and others to develop models of the economy where prices as well as wages are predetermined the main feature of such models is their abandonment of aggregate supply formulations where price level disturbances provide a channel for the real effects of money the purpose of this paper is to demonstrate the consistency of familiar gray and fischer wage indexing models and their implied aggregate supply relationship with the stylized facts see joanna gray 1976 stanley fischer 1977 in a model where the nominal wage is indexed to the price level the efficient use of the information conveyed by the price level imposes qualitative restrictions on the covariance matrix of disturbances first the correlation between the price level and innovations in the deviation of actual output from the full information output level will be zero second because the money supply contains information about real disturbances that is not conveyed by the price level the correlation between money supply innovations and innovations in the deviation of output from the full information level will be positive third the regression of innovations in actual output on the price level will provide an estimate of the optimal degree of indexation evidence that is generally consistent with these properties of wage indexation models is found in quarterly data for the five largest oecd countries consider the familiar aggregate formulation 1

are reserve requirements relevant for economic stabilization abstract the level of the required reserve ratio and the payment of interest on required reserves are irrelevant for economic stability 1 when the central bank appropriately adjusts its interest elasticity of supply of reserves or currency to offset changes in the required reserve ratio or in the interest rate paid on required reserves or 2 when economic agents form their price level expectations rationally conditional on the current interest rate

nonlinearity data snooping and stock index etf return predictability abstract this paper examines daily return predictability for eighteen international stock index etfs the out of sample tests are conducted based on linear and various popular nonlinear models and both statistical and economic criteria for model comparison the main results show evidence of predictability for six of eighteen etfs a simple linear autoregression model and a nonlinear in variance garch model but not several popular nonlinear in mean models help outperform the martingale model the allowance of data snooping bias using white s reality check also substantially weakens otherwise apparently strong predictability

price level determinacy and the choice of policy targets under rational expectations abstract we show that in a conventional macro model with rational expectations the government can use monetary policy to peg real interest rates and still attain a determinate price level provided it also pegs some nominal policy variable e g nominal expenditures

central bank independence and the monetary instrument problem we study the monetary instrument problem in a dynamic noncooperative game between separate discretionary fiscal and monetary policy makers we show that monetary instruments are equivalent only if the policy makers objectives are perfectly aligned otherwise an instrument problem exists when the central bank is benevolent while the fiscal authority is short sighted relative to the private sector excessive public spending and debt emerge under a money growth policy but not under an interest rate policy despite this property the interest rate is not necessarily the optimal instrument

trading rule profits in european currency spot cross rates abstract the moving average ma trading rule is applied to six european spot cross rates jy bp dm bp jy dm sf dm sf bp and jy sf to see if opportunities for profitable trading exist the results suggest that ma trading rules are marginally profitable only for the jy dm and the jy sf cross rates while trading rules are not profitable for the other four cross rates bootstrapping and out of sample tests provide similar results examination of subsamples characterized by central bank intervention do not produce different results computation of box pierce statistics adjusted for heteroscedasticity show that daily returns for all six cross rates are serially uncorrelated overall the results suggests that cross rates are sufficiently transparent to eliminate ma trading rule profit

instrument instability and short term monetary control abstract the literature on instrument instability tends support to a policy of smoothing interest rates it contends that rigid adherence to a monetary rule would bring about explosive interest rate movements this contention is examined using a simple model which incorporates rational expectations the results suggest that instrument instability is associated with interest rate smoothing rather than with short term control of the money supply furthermore policy that attempts to stabilize interest rates may itself account for empirical findings which have hitherto been viewed as evidence that instrument instability would occur if the money supply were closely controlled

informational implications of money interest rate and price rules the information available to private agents determines the effectiveness of various types of monetary policy in an economy in which private agents have differential information sets the ranking of three classes of monetary policy rules critically depends on the specification of agents information sets a price rule for example minimizes the variance of output around its full information level when agents observe both the interest rate and money stock more generally if all three monetary policy variables the money stock the price level and the interest rate are contemporaneously observed the policy ranking is indeterminate

a reconsideration of sims evidence concerning monetarism abstract in var systems such as those of sims 1980 monetary policy surprises may be more accurately represented by interest rate than money stock innovations especially if the monetary authority uses an interest rate instrument

on the optimal monetary policy response to noisy indicators abstract we describe a behavior of a central bank when its measures of current inflation and output are subject to measurement errors in a framework of optimizing models with nominal price stickiness in our model a central bank sets the interest rate equal to its current estimate of the so called wicksellian natural rate of interest this is shown to imply that the interest rate responds to the central bank s estimates of both current inflation and output gap as advocated by taylor 1993 it is also shown that the noise contained in the indicators justifies a degree of policy cautiousness a reduced form representation of optimal policy should exhibit interest rate smoothing which is often found in the empirical literature on monetary policy reaction functions

interest rates aggregate information and monetary policy abstract interest rates set on economy wide markets represent an important source of information to economic agents within the class of business cycle models advanced by lucas and barro this paper explores the information conveyed by such aggregate signals and the types of monetary policies that can influence economic activity by changing the information content of interest rates

the taylor rule and optimal monetary policy where it denotes the fed s operating target for the federal funds rate pt is the inflation rate measured by the gdp deflator yt is the log of real gdp and y t is the log of potential output identified empirically with a linear trend the rule has since been subject to considerable attention both as an account of actual policy in the united states and elsewhere and as a prescription for desirable policy taylor argues for the rule s normative significance both on the basis of simulations and on the ground that it describes u s policy in a period in which monetary policy is widely judged to have been unusually successful taylor 1999 suggesting that the rule is worth adopting as a principle of behavior here i wish to consider to what extent this prescription resembles the sort of policy that economic theory would recommend i consider the question in the context of a simple but widely used optimizing model of the monetary transmission mechanism which allows one to reach clear conclusions about economic welfare the model is highly stylized but incorporates important features of more realistic models and allows me to make several points that are of more general validity out of concern for the robustness of the conclusions reached the analysis here addresses only broad qualitative features of the taylor rule and attempts to identify features of a desirable policy rule that are likely to hold under a variety of model specifications

some evidence of random walk behavior of euro exchange rates using ranks and signs abstract this study utilises recently developed tests based on ranks and signs in addition to the traditional variance ratio test to examine the behavior of euro exchange rates we show that adjustments for multiple tests must be employed in order to avoid size distortions overall such adjustments provide evidence consistent with random walk behavior of euro exchange rates

wealth effects of open market operations and optimal monetary policy abstract equilibrium models of the business cycle such as those developed by lucas 1973 and barro 1976 barro 1980 are often used to analyze the effects of monetary disturbances on the economy these models typically view monetary injections as arising through lump sum transfer payments that are independent of an agent s holdings of money this paper examines the effects caused by misperceptions about money for the more realistic case when money is injected through open market operations the major result is that unperceived open market operations have a negative wealth effect

a century of us central banking goals frameworks accountability several key episodes in the 100 year history of the federal reserve have everal key episodes in the 100 year history of the federal reserve have been referred to in various contexts with the adjective great attached to been referred to in various contexts with the adjective great attached to them the great experiment of the federal reserve s founding the great them the great experiment of the federal reserve s founding the great depression the great infl ation and subsequent disinfl ation the great moderation depression the great infl ation and subsequent disinfl ation the great moderation and the recent great recession here i ll use this sequence of great episodes and the recent great recession here i ll use this sequence of great episodes to discuss the evolution over the past 100 years of three key aspects of federal to discuss the evolution over the past 100 years of three key aspects of federal reserve policymaking the goals of policy the policy framework and accountability reserve policymaking the goals of policy the policy framework and accountability and communication the changes over time in these three areas provide a useful and communication the changes over time in these three areas provide a useful perspective i believe on how the role and functioning of the federal reserve have perspective i believe on how the role and functioning of the federal reserve have changed since its founding in 1913 as well as some lessons for the present and for changed since its founding in 1913 as well as some lessons for the present and for the future the future

contrasting models of the effect of inflation on growth the paper formulates a nesting model for studying the theoretical literature on inflation and endogenous growth it analyses different classes of endogenous growth models with different usage of physical and human capital with different exchange technologies first the paper shows that a broad array of models can all generate significant negative effects of inflation on growth second it shows that these models can be differentiated primarily by the fact whether there is a tobin type effect of inflation and also whether the inflation growth effect becomes weaker as the inflation rate rises a non linearity or stays essentially constant over the range of inflation rates the paper compares these features of the models to empirical evidence as a way to summarize the efficacy of the models

inflation targeting price path targeting and indeterminacy abstract in this paper we examine the areas of indeterminacy in a flexible price rbc model with shopping time role for money and a central bank that uses an interest rate rule to target inflation and or the price level we present analytical results showing that although inflation targeting often results in real indeterminacy a price level target generally delivers a unique equilibrium for a relevant range of policy parameters

intermediate monetary targets and macroeconomic fluctuations it is investigated whether the choice of intermediate target has altered macroeconomic fluctuations and whether the observed changes are consistent with predictions from economic theory since implications from the theoretical literature focus on the effects of structural disturbances an empirical analysis must identify these effects the structural vector autoregressive var technique estimates structural disturbances using restrictions from standard macroeconomic theory based on descriptions of actual targeting procedures by insiders to federal reserve policy decisions the intermediate target for the united states is identified as the interest rate from 1951 to 1969 and money from 1970 to 1986 var models are estimated over each subsample to assess whether the estimated structural disturbances cause endogenous variables to behave as economic theory predicts tests are also performed to assess whether or not the targeting rule affects the variance of endogenous variables attributable to structural sh

capital and macroeconomic instability in a discrete time model with forward looking interest rate rules abstract we establish the necessary and sufficient conditions for local real determinacy in a discrete time production economy with monopolistic competition and a quadratic price adjustment cost under forward looking policy rules for the case where capital is in exogenously fixed supply and the case with endogenous capital accumulation using these conditions we show that i indeterminacy is more likely to occur with a greater share of payment to capital in value added production cost ii indeterminacy can be more or less likely to occur with constant capital than with variable capital iii indeterminacy is more likely to occur when prices are modelled as jump variables than as predetermined variables iv indeterminacy is less likely to occur with a greater degree of steady state monopolistic distortions and v indeterminacy is less likely to occur with a greater degree of price stickiness or with a higher steady state inflation rate in contrast to some existing research our analysis indicates that capital tends to lead to macroeconomic instability by affecting firms pricing behavior in product markets rather than households arbitrage activity in asset markets even under forward looking policy rules

money s role in the monetary business cycle a small structural model of the monetary business cycle implies that real money balances enter into a correctly specified forward looking is curve if and only if they enter into a correctly specified forward looking phillips curve the model also implies that empirical measures of real balances must be adjusted for shifts in money demand to accurately isolate and quantify the dynamic effects of money on output and inflation maximum likelihood estimates of the modelos parameters take both these considerations into account but still suggest that money plays a minimal role in the monetary business cycle

when did the fomc begin targeting the federal funds rate what the verbatim transcripts tell us in october 1982 the fomc deemphasized m1 and moved to what is commonly referred to as a borrowed reserves operating procedure sometime thereafter the fomc switched to a funds rate targeting procedure but never formally announced the change given the close correspondence between a borrowed reserves operating procedure and a funds rate targeting procedure thornton 1988 suggested that the fomc went immediately to a funds rate targeting procedure others date the switch to the funds rate procedure later meulendyke 1998 suggests the switch came in late 1987 while others suggest the change occurred later this paper reviews the verbatim transcripts of the fomc meetings to establish the timing of the switch the verbatim transcripts suggest that the fomc effectively switched to a funds rate targeting procedure in 1982 the documentary evidence is supported by an analysis of the spread between the funds rate and the funds rate target which suggests that the differences in the behavior of the spread before october 1979 and after october 1982 are relatively small and economically unimportant

inflation investment and growth a money and banking approach output growth investment and the real interest rate in long run evidence tend to be negatively affected by inflation theoretically inflation acts as a human capital tax that decreases output growth and the real interest rate but increases the investment rate opposing evidence this paper resolves this puzzle by requiring exchange for investment as well as consumption inflation then decreases the investment rate and still decreases both output growth and real interest up to some moderately high rate of inflation above which increasingly low investment finally causes capital to fall relative to labour and the real interest rate to rise

linear non linear and essential foreign exchange rate prediction with simple technical trading rules abstract this paper investigates the predictability of spot foreign exchange rate returns from past buy sell signals of the simple technical trading rules by using the nearest neighbors and the feedforward network regressions the optimal choices for nearest neighbors hidden units in a feedforward network and the training set are determined by the cross validation method which minimizes the mean square error although this method is computationally expensive the results indicate that it has the advantage of avoiding overfitting in noisy environments and indicate that simple technical rules provide significant forecast improvements for the current returns over the random walk model

interest rates and monetary policy this article conducts a thorough intertemporal analysis of nominal interest rate based monetary policy its main contribution is to show how such a policy can have different effects depending on the assumptions made about the saving and borrowing behaviour of firms we consider two cases i consumers are savers and firms are borrowers and ii both consumers and firms are borrowers the nation as a whole is borrowing from abroad in one case we confirm conventional wisdom but in the other case we find there may be unexpected and surprising results moreover our analysis has important implications for both inflation and nominal exchange rate targeting policies

the natural rate of unemployment reflections on 25 years of the hypothesis 1 introduction rod cross part i the theoretical framework 2 the origins and further development of the natural rate of unemployment edmund phelps 3 the natural rate as new classical macroeconomics james tobin 4 theoretical reflections on the natural rate of unemployment frank hahn 5 of coconuts decomposition and a jackass the genealogy of the natural rate huw dixon part ii adjustment ranges of equilibria and hysteresis 6 the economics of adjustment andrew caplin and john leahy 7 hysteresis and memory in the labour market g c archibald 8 models of the range of equilibria ian mcdonald 9 hysteresis revisited a methodological approach bruno amable jerome henry frederic lordon and richard topol 10 is the natural rate hypothesis consistent with hysteresis rod cross part iii empirical tests and macro models 11 the natural rate hypothesis and its testable implications hashem pesaran and ron smith 12 non linear dependence in unemployment output and inflation empirical evidence for the uk david peel and alan speight 13 prices wages and unemployment in the us economy a traditional model and tests of some alternatives albert ando and flint brayton 14 the natural rate in empirical macroeconomic models simon wren lewis part iv political economy 15 is the natural rate of unemployment a useful concept for europe maria demertzis and andrew hughes hallett 16 the natural rate of unemployment a fundamentalist keynesian view meghnad desai 17 politics and the natural rate hypothesis a historical perspective bernard corry

interest rate innovations and the business cycle abstract recent evidence from vector autoregressions points towards the importance of interest rate innovations in explaining output variations we show that this evidence supports an interpretation of business cycles based on nominal contractual rigidities rather than cotinuous market clearing

interest rate rules and price determinacy the role of transactions services of bonds abstract interest rate rules have been associated with price indeterminacy when they do not respond aggressively enough to inflation price indeterminacy is typically associated with indeterminacy of real bond balances suggesting that the missing element is a meaningful role for government bonds we assume that government bonds provide arbitrarily small transactions services and show that this can dramatically change the local and global determinacy conditions in particular the specification of fiscal policy affects the aggressiveness with which monetary policy must respond to inflation to deliver local determinacy a range of passive monetary policies even an interest rate peg may yield determinacy

global stability and the choice of policy targets under rational expectations abstract it is shown that if the supply of capital is properly incorporated in a macromodel with rational expectations the government cannot peg its expenditures wholly in real terms since otherwise the economy will be globally unstable

interest rate rules and transitional dynamics in an endogenously growing open economy abstract this paper sets up an endogenous growth model of an open economy in which the monetary authority implements a gradualist interest rate rule with targets for both inflation and economic growth we show that under a passive rule a monetary equilibrium exists and is unique moreover the equilibrium is locally determinate by contrast an active rule implies either two equilibria one high growth and one low growth or none in the case of two equilibria the high growth equilibrium is locally determinate while the low growth equilibrium is a source besides the stabilization and growth effects of alternative target policies are also explored in this study moreover in departing from the existing literature we turn to focus on the analysis of transition with a particular emphasis on the case of imperfect credibility

a reconsideration of the uncovered interest parity relationship abstract this paper argues that the uncovered interest parity uip relationship is distinct from and more important than the unbiasedness of forward exchange rates as predictors of future spot rates the standard finding that the slope estimate b is roughly 3 in regressions of s t on t 1 s t 1 implies rejection of unbiasedness but not necessarily uip the hypothesis that monetary authorities manage interest rates so as to smooth their movements while also resisting changes in exchange rates is attractive conceptually and is capable of explaining not only the b 3 finding but also several other notable features of the data

interest rate rules vs money growth rules a welfare comparison in a cash in advance economy abstract this paper considers the welfare consequences of two particularly simple rules for monetary policy an interest rate peg and a money growth peg the model economy consists of a real side that is the standard real business cycle model and a monetary side that amounts to imposing cash in advance constraints on certain market transactions the paper also considers the effect of assuming a rigidity in the typical household s cash savings choice the competitive equilibrium of the economy is not pareto efficient partly because of two distortions a distortion on the capital accumulation decision and a distortion on portfolio choice that arises from the assumed rigidity the principal result of the paper is that the interest rate rule but not the money growth rule entirely eliminates these two distortions and is thus the benevolent central banker s policy choice

is technical analysis in the foreign exchange market profitable a genetic programming approach using genetic programming techniques to find technical trading rules we find strong evidence of economically significant out of sample excess returns to those rules for each of six exchange rates over the period 1981 1995 further when the dollar deutsche mark rules are allowed to determine trades in the other markets there is significant improvement in performance in all cases except for the deutsche mark yen betas calculated for the returns according to various benchmark portfolios provide no evidence that the returns to these rules are compensation for bearing systematic risk bootstrapping results on the dollar deutsche mark indicate that the trading rules detect patterns in the data that are not captured by standard statistical models

optimal monetary policy endogenous supply and rational expectations abstract in this paper we demonstrate that the choice of monetary policy regime will affect the variability of output when private agents in forming their supply decisions take into account the authority s selection of a policy rule a striking feature of the analysis is that the choice between policy rules in sargent wallace 1975 framework but with endogenous aggregate supply depends only on the variability of aggregate demand under each rule and not on the variability of aggregate supply it follows that the choice of monetary policy rules reduces to the problem analyzed by poole 1970 in the stochastic keynesian structure

interest rates and exchange rates under money supply targets the swiss evidence abstract short term effects of monetary policy on interest rates and exchange rates are evaluated with monthly and daily data for switzerland from 1974 to 1991 during this period the swiss national bank generally pursued a policy of targeting the money supply some evidence in favor of liquidity effects on interest rates is found the influence of changes in monetary aggregates is however not very strong both in terms of magnitude and explanatory power and depends on the time period investigated exchange rates do not react systematically to monetary policy actions

monetary instruments and policy rules in a rational expectations environment abstract this paper explores the implications of rational expectations and the aggregate supply theory advanced by lucas 1973 and barro 1976 for analysis of optimal monetary policy under uncertainty along the lines of poole 1970 returning to a topic initially treated by sargent and wallace 1975 not surprisingly these two classical concepts alter both the menu of feasible policy choice and the desirability of certain policy actions in our setup unlike that of sargent and wallace 1975 the systematic component of monetary policy is a relevant determinant of the magnitude of business fluctuations that arise from shocks to the system central bank behavior both the selection of monetary instruments and the framing of overall policy response to economic conditions can work to diminish or increase the magnitude of business fluctuations however the activist policies stressed by the present discussion bear little if any relationship to the policy options rationalized by the conventional analysis of monetary policy under uncertainty in particular in contrast to poole s analysis money supply responses to the nominal interest rate are not important determinants of real economic activity rather the central bank should focus on policies that make movements in the general price level readily identifiable by economic agents

the incredible volcker disinflation abstract the reduction in inflation that occurred in the early 1980s when the federal reserve was headed by paul volcker is arguably the most widely discussed and visible macroeconomic event of the last 50 years of u s history inflation had been dramatically rising but under volcker the fed first contained and then reversed this process using a simple modern macroeconomic model we argue that the real effects of the volcker disinflation were mainly due to its imperfect credibility in our view the observed upward volatility and subsequent stubborn elevation of long term interest rates during the disinflation are key indicators of that imperfect credibility studying transcripts of the federal open market committee recently released to the public we find to our surprise that volcker and other fomc members likewise regarded the long term interest rates as indicative of inflation expectations and of the credibility of their disinflationary policy drawing from the transcripts and other contemporary sources we consider the interplay of monetary targets operating procedures and credibility during the volcker disinflation

inflation targeting in brazil constructing credibility under exchange rate volatility abstract this paper assesses the challenges faced by the inflation targeting regime in brazil the inflation targeting framework has played a critical role in macroeconomic stabilization we stress two important challenges construction of credibility and exchange rate volatility the estimations indicate the following results i the inflation targets have worked as an important coordinator of expectations ii the central bank has reacted strongly to inflation expectations iii there has been a reduction in the degree of inflation persistence and iv the exchange rate pass through for administered or monitored prices is two times higher than for market prices

the use of fundamental and technical analyses by foreign exchange dealers hong kong evidence abstract this article reports the results of a questionnaire survey conducted in february 1995 on the use by foreign exchange dealers in hong kong of fundamental and technical analyses to form their forecasts of exchange rate movements our findings reveal that 85 of respondents rely on both fundamental and technical analyses for predicting future rate movements at different time horizons at shorter horizons there exists a skew towards reliance on technical analysis as opposed to fundamental analysis but the skew becomes steadily reversed as the length of horizon considered is extended technical analysis is considered slightly more useful in forecasting trends than fundamental analysis but significantly more useful in predicting turning points interest rate related news is found to be a relatively important fundamental factor in exchange rate forecasting while moving average and or other trend following systems are the most useful technical technique

the indeterminacy of prices under interest rate pegging the non ricardian case abstract this paper investigates the issue of price level indeterminacy under a pure interest rate peg in models that depart from standard ricardian assumptions using a monetary version of blanchard s finite horizons model i find wealth effects operating on government bonds are not sufficient to determine a unique price level next i consider price determination under a non ricardian fiscal authority i show that if agents rationally perceive the possibility of fiscal default the price level is again indeterminate i conclude that departures from ricardian equivalence are not sufficient to ensure a unique price level under a monetary policy of pure interest rate pegging