A Re-Examination of Financial Analysts' Differential Earnings Forecast Accuracy*

Abstract. This research re-examines whether there are differences in the forecast accuracy of financial analysts through a comparison of their annual earnings per share forecasts. The comparison of analyst forecast accuracy is made on both an ex post (within sample) and an ex ante (out of sample) basis. Early examinations of this issue by Richards (1976), Brown and Rozeff (1980), O'Brien (1987), Coggin and Hunter (1989), O'Brien (1990), and Butler and Lang (1991) were ex post and suggest the absence of analysts who can provide relatively more accurate forecasts over multiple years. Contrary to the results of prior research and consistent with the belief in the popular press, we document that differences do exist in financial analysts' ex post forecast accuracy. We show that the previous studies failed to find differences in forecast accuracy due to inadequate (or no) control for differences in the recency of forecasts issued by the analysts. It has been well documented in the literature that forecast recency is positively related to forecast accuracy (Crichfield, Dyckman, and Lakonishok 1978; O'Brien 1988; Brown 1991). Thus, failure to control for forecast recency may reduce the power of tests, making it difficult to reject the null hypothesis of no differences in forecast accuracy even if they do exist. In our analysis, we control for the differences in recency of analysts' forecasts using two different approaches. First, we use an estimated generalized least squares estimation procedure that captures the recency-induced effects in the residuals of the model. Second, we use a matched-pair design whereby we measure the relative forecast accuracy of an analyst by comparing his/her forecast error to the forecast error of another randomly selected analyst making forecasts for the same firm in the same year on or around the same date. Using both approaches, we find that differential forecast accuracy does exist amongst analysts, especially in samples with minimum forecast horizons of five and 60 trading days. We show that these differences are not attributable to differences in the forecast issuance frequency of the financial analysts. In sum, after controlling for firm, year, forecast recency, and forecast issuance frequency of individual analysts, the analyst effect persists. To validate our findings, we examine whether the differences in the forecast accuracy of financial analysts persist in holdout periods. Analysts were assigned a “superior” (“inferior”) status for a firm-year in the estimation sample using percentile rankings on the distribution of absolute forecast errors for that firm-year. We use estimation samples of one- to four-year duration, and consider two different definitions of analyst forecast superiority. Analysts were classified as firm-specific “superior” if they maintained a “superior” status in every year of the estimation sample. Furthermore, they were classified as industry-specific “superior” if they were deemed firm-specific “superior” with respect to at least two firms and firm-specific “inferior” with respect to no firm in that industry. Using either definition, we find that analysts classified as “superior” in estimation samples generally remain superior in holdout periods. In contrast, we find that analysts identified as “inferior” in estimation samples do not remain inferior in holdout periods. Our results suggest that some analysts' earnings forecasts should be weighted higher than others when formulating composite earnings expectations. This suggestion is predicated on the assumption that capital markets distinguish between analysts who are ex ante superior, and that they utilize this information when formulating stock prices. Our study provides an ex ante framework for identifying those analysts who appear to be superior. When constructing weighted forecasts, a one-year estimation period should be used because we obtain the strongest results of persistence in this case.     

The case for price level or inflation targeting—What happened to monetary policy effectiveness during the Japanese disinflation?

This paper examines whether price level or inflation targeting would have been appropriate policy choices for Japan during its disinflation and deflation period. We employ Markov switching and structural vector autoregressions, together with structural IS equations, to investigate monetary policy effectiveness during the Japanese disinflation. We find evidence of regime switching in the mid-1990s in a model including the nominal policy interest rate. When monetary policy shocks are identified by using the McCallum rule for monetary base, a monetary expansion is found to have a statistically significant impact on prices. Moreover, a lower real ex ante interest rate can still stimulate the economy despite the zero lower bound on nominal interest rates.     

The Interactions between Fiscal Policy and Monetary Policy

This paper studies the interactions of fiscal policy and monetarypolicy when they stabilize a single economy against shocks ina dynamic setting. If both policy-makers are benevolent, then,in our model, the best outcome is achieved when monetary policydoes nearly all of the stabilization. If the monetary authoritiesare benevolent, but the fiscal authority discounts the future,or aims for an excessive level of output, then a Nash equilibriumwill result in large welfare losses: after an inflation shockthere will be excessively tight monetary policy, excessive fiscalexpansion, and a rapid accumulation of public debt. However,if, in these circumstances, there is a regime of fiscal leadership,then the outcome will be very nearly as good as when both policy-makersare benevolent. Footnotes ¹ E-mail addresses: t.kirsanova{at}exeter.ac.uk; jari.stehn{at}bnc.ox.ac.uk;david.vines{at}economics.oxford.ac.uk     

Asset Prices in the Measurement of Inflation

The debate over including asset prices in the construction of an inflation statistic has attracted renewed attention in recent years. Virtually all of this (and earlier) work on incorporating asset prices into an aggregate price statistic has been motivated by a presumed, but unidentified transmission mechanism through which asset prices are leading indicators of inflation at the retail level. In this paper, we take an alternative, longer-term perspective on the issue and argue that the exclusion of asset prices introduces an excluded goods bias in the computation of the inflation statistic that is of interest to the monetary authority.We implement this idea using a relatively modern statistical technique, a dynamic factor index. This statistical algorithm allows us to see through the excessively noisy asset price data that have frustrated earlier researchers who have attempted to integrate these prices into an aggregate measure. We find that the failure to include asset prices in the aggregate price statistic has introduced a downward bias in the US Consumer Price Index on the order of magnitude of roughly ; percentage point annually. Of the three broad assets categories considered here – equities, bonds, and houses – we find that the failure to include housing prices resulted in the largest potential measurement error. This conclusion is also supported by a cursory look at some cross-country evidence.     

An analysis of RSQE forecasts: 1971–1992

The purpose of this paper is to evaluate the accuracy of ex ante econometric model forecasts of four key macroeconomic variables: real GNP growth, the rate of price inflation measured by the GNP deflator, the civilian unemployment rate, and the Treasury Bill rate. Annual forecasts produced by the Research Seminar in Quantitative Economics (RSQE) based on the Michigan Quarterly Econometric Model of the U.S. Economy are compared with quasi ex ante forecasts from a four-variable vector autoregressive (VAR) model. Statistical tests of the equality of forecast error variances as well as univariate and multivariate forecast encompassing-type tests are conducted. The forecast error variance comparisons indicate that for three of the four variables the RSQE forecasts are more accurate than the VAR forecasts and for one of the variables (real GNP growth) only slightly less accurate. The forecast encompassing-type tests indicate that the RSQE forecasts contain information not contained in the VAR forecasts and, conversely, that VAR forecasts contain information not included in the RSQE forecasts. The scope for improving RSQE forecasts by combining them with VAR forecasts is rather limited, however.     

The implications of monetary expansion in China for the US dollar

We examine the influence of rapid growth in China's money supply on the US dollar within a framework of monetary models of exchange rates. We develop out-of-sample forecasts of the US dollar exchange rate using US and global data on price level, output, and interest rates, and money supply data for the US, China, and the rest of the world for the period 1996–2013. Monetary model forecasts significantly outperform a random walk forecast in terms of mean squared forecast error in the long run. A monetary error correction model with sticky prices performs best. Rolling sample analysis indicates changes over time in the influence of Chinese money supply in forecasting the US dollar. The expectation is that rapid money growth in China would increase the demand for dollars thus raising the value of the dollar, yet our forecasts are to the contrary for the mid 2000s. This is consistent with anticipation of renminbi appreciation under China’s managed exchange rate, which made holding renminbi more attractive. With the break from a dollar peg in 2005 and subsequent currency appreciation, the distortion was alleviated and the forecast direction for the dollar became as expected.     

On Optimal Monetary Policy Rules and the Construction of MCIs in the Open Economy

This paper presents a simple open-economy forward-looking model to underscore the important role of the real exchange rate channel in the conduct of optimal monetary policy. As opposed to the closed economy, optimal monetary policy in the open economy depends on both demand-side and supply-side parameters.The paper also highlights the importance of the exchange rate channel for the design and implementation of a Monetary Conditions Index in the conduct of monetary policy. The model gives rise to an alternative MCI where the weight on the real exchange rate depends on all parameters of the model and the policymakers preferences.     

Interest rate policy of the deutsche bundesbank: An econometric analysis for 1975 to 1992

Summary Internal and external economic targets which a monetary authority tries to achieve make its interest rate policy partly endogenous. This article analyses the Bundesbank's interest rate policy since 1975, the year the Bundesbank published its first intermediate money growth target based on estimates of an inevitable inflation rate and expectations about economic development. Estimation of a discount rate reaction function suggests that German monetary policy responds primarily to the final objective of price level stability and to a smaller extent, to the intermediate money supply target. Moreover, cyclical movements and balance-of payments equilibria are found to significantly influence the Bundesbank's discount rate policy. Both the inflation rate and the current account enter the reaction function in a non-linear way. When inflation is above the targeted rate or when there is a current account deficit, discount rate responses are much stronger than in the case of below target inflation or a current account surplus. Internationally, the Bundesbank discount rate policy is limited by US short-term interest rate movements.     

Financial Restraints in a Mature Welfare State--The Case of Denmark

The Scandinavian welfare states are mature in the sense of havinga high level of standards for public provisions of welfare servicesas well as a high replacement level for income transfers, especiallyfor low-income groups. In this welfare model, individuals havebasic rights to welfare services and social transfers independentlyof their ability to pay, their labour-market history, etc. Thefinancial viability of the model relies on a high tax burdenand a high level of labour-force participation for males andfemales. Evaluated on the basis of international comparisonsof income levels and inequality, the model has performed well.In a forward-looking perspective, however, the welfare modelfaces problems that may put the financial viability of the modelat risk. Two important challenges are demographic changes andthe so-called growth dilemma (increased demand for servicesand leisure). We discuss these issues using Denmark as an exampleand argue that while these two challenges may be of the sameorder of magnitude, it is easier to propose solutions to thedemographic challenges than to the growth dilemma which areconsistent with the basic principles of the welfare state. Footnotes ¹ E-mail addresses: tandersen{at}econ.au.dk; lhp{at}dreammodel.dk     

Asset Prices as Indicators of Euro Area Monetary Policy: An Empirical Assessment of Their Role in a Taylor Rule

This paper estimates forward-looking and forecast-based Taylor rules for France, Germany, Italy, and the euro area. Performing extensive tests for over-identifying restrictions and instrument relevance, we find that asset prices can be highly relevant as instruments in policy rules. While asset prices improve Taylor rule estimates, different assets prove most relevant across countries and this result could be seen as complicating the tasks of the European Central Bank. Encompassing tests show that forecast-based outperform forward-looking Taylor rules. A policy implication is that central banks ought to release their own forecasts and the basis upon which they are generated.

Empirical vintage models for the Netherlands: A review in outline

Summary The abundant literature on empirical vintage modelling for the Netherlands is not easily accessible. This article provides a discussion of the main issues covered by that research. Attention is given to (theoretical) model specifications, empirically inspired adjustments and empirical results. The empirical evidence for vintage models appears to be convincing, but it does not seem conclusive with respect to a preference for eitherex ante complementarity orex ante substitutability. Comprehensive modelling for the economy of the Netherlands up to now mainly usesex ante complementarity to describe the production technology. Apart from this, policy implications of such models show a degree of nuance which exceeds but also includes the purely demand oriented approach.     

German dominance in the European Monetary System: Evidence from money supply growth rates

This paper presents further evidence on ostensible German dominance in the European Monetary System (EMS). A dynamic system of equations is built explaining money growth rates as a function of the EMS countries' money growth rates, the world money growth rate, exchange rate objectives, inflation rates, and real income growth rates. A test of German dominance based upon money growth rates is a test of the hypothesis that the EMS has increased the comovements of money demand between countries in the system. It is found that German independence holds, but other central banks can also be important players in the system in that they can conduct independent monetary policies. Monetary policies in the EMS are best characterized as interactive. Therefore, the strict German dominance hypothesis is rejected. It follows that the EMS has not increased significantly the link between money demand functions in the EMS countries in the hierarchical structure as claimed by the dominance argument.     

Information asymmetries and craft guilds in pre‐modern markets: evidence from Italian proto‐industry

This article analyses the relationship between guilds and information asymmetries using a large database of quality disputes from early modern Italy. It finds that a high‐quality urban textile industry was able to solve externalities using a range of ex ante and ex post monitoring mechanisms based on private market relationships and fair sanctions which effectively reduced adverse selection and information asymmetries. Instead, when guilds did use their quality regulations, the effect of the guild on information asymmetries and the industry as a whole was generally negative, by providing mechanisms that could be manipulated by entrenched interest groups for rent‐seeking purposes.     

An evaluation of Chinese economic forecasts

This paper analyses the real GDP growth and inflation forecasts prepared by the International Monetary Fund, the Organization for Economic Cooperation and Development, and the private forecasters between 1999 and 2010. The empirical results show that the long-term growth forecasts were inferior to a naïve model and were biased. The average of a number of short-term private forecasts dominated those made by the international organisations.     

Evaluating Monetary Policy Options

We present a procedure for evaluating ex ante the effects of alternative paths of a monetary policy tool (the federal funds rate in our illustrations) on output and the price level within a variant of a widely used vector autoregressive model of the U.S. economy. This exercise is a supplement to, or even an alternative to, analysis that relies on a particular structural model. Illustrations of the method are provided by evaluating the effects of changes in the funds rate target. Additionally, the Taylor rule is used to generate target funds rates for different target inflation rates, and the effects of these are evaluated.     

Inflation Targeting in Practice: Models,Forecasts, and Hunches

This paper reviews the role that model-based forecasts play in the monetary policy process in the United Kingdom, with particular reference to the Bank of England’s new quarterly model and continuing research into other statistical approaches. The Bank’s models provide a consistent framework for considering alternative scenarios and risks but judgement always plays a large role in constructing forecasts. It is hard to say precisely how important forecasts are in driving policy decisions, but there is some evidence that the rethink of key issues during the forecast round has been a source of policy surprises. Forecasts also play a central part in communicating the Monetary Policy Committee’s thinking to the outside world. But forecasts are highly fallible. So the MPC’s forecast centered approach to inflation targeting has gone hand in hand with a determined effort to illustrate the wide range of uncertainties around its central projections.Distinguished address presented at the Fifty-Ninth International Atlantic Economic Conference, March 9–13, 2005, London, England. I am most grateful to Jens Larsen, James Bell, Fabrizio Zampolli, and Robin Windle for research support; and to Charlie Bean, Peter Andrews, Spencer Dale, Phil Evans, Laura Piscitelli, and other colleagues at the Bank of England for helpful comments.     

Forecasting China's economic growth and inflation

Although macroeconomic forecasting forms an integral part of the policymaking process, there has been a serious lack of rigorous and systematic research in the evaluation of out-of-sample model-based forecasts of China's real GDP growth and CPI inflation. This paper fills this research gap by providing a replicable forecasting model that beats a host of other competing models when measured by root mean square errors, especially over long-run forecast horizons. The model is shown to be capable of predicting turning points and to be usable for policy analysis under different scenarios. We find that M2 supply, rather than interest rates, is a key variable for forecasting macroeconomic variables. Annual GDP growth for the next five years is predicted to be close to the 6.5% official target and a future GDP growth path is predicted to be of L-shape rather than U-shape.     

Measuring the monetary policy stance of the People's bank of china: An ordered probit analysis

The People's Bank of China (PBC) has employed a range of different instruments in the implementation of its monetary policy over the past decades, so perhaps no single instrument would constitute an adequate representation of the monetary policy stance. We thus develop a new policy stance index, and examine it in an ordered probit model, which follows the studies by Gerlach (2004) and He and Pauwels (2008). The empirical results show that in a backward-looking model, monetary policy reacts to actual output growth; one the other hand, when deviations from trend levels are considered, the PBC concerns inflation most seriously. In a forward-looking model, when we examine the PBC's statements in its quarterly Monetary Policy Executive Report from 2001Q1 to 2010Q3, it seems that the PBC's assessment of the prospects for inflation plays a key role determining the PBC's monetary policy stance. Our conclusions suggest that the PBC is informally targeting inflation, although no explicit target has ever been announced to the public by the PBC.     

Innovation and Productivity Across Four European Countries

This paper compares the role innovation plays in productivityacross four European countries, France, Germany, Spain, andthe UK, using firm-level data from the internationally harmonizedCommunity Innovation Surveys (CIS3). Despite a considerablenumber of national firm-level studies analysing this relationship,cross-country comparisons using micro data are still rare. Weapply a structural model that describes the link between R&Dexpenditure, innovation output, and productivity (CDM model).Our econometric results suggest that overall the systems drivinginnovation and productivity are remarkably similar across thesefour countries, although we also find interesting differences,particularly in the variation in productivity that is associatedwith more or less innovative activities. Footnotes ¹ E-mail addresses: rgriffith{at}ifs.org.uk; ehuergo{at}ccee.ucm.es;jacques.mairesse{at}ensae.fr; b.peters{at}zew.de     

Monetary policy rules for a developing country: Evidence from Pakistan

This paper estimates forward-looking monetary policy rules to examine the interest rate setting behavior of the State Bank of Pakistan. Considering the external constraints on monetary policy, core inflation and a country-specific measure of the output gap, we demonstrate that the State Bank of Pakistan reacts to changes in inflation, the output gap and the federal funds rate.