international evidence on output inflation tradeoffs a bootstrap analysis abstract a bootstrap analysis of existing data on international output inflation tradeoffs is performed in contrast to some previous empirical work the results of the bootstrap analysis strongly support lucas 1973 rational expectations model of the natural rate hypothesis

self reinforcing mechanisms and market information abstract we consider the possibility of switching between two technological standards when there are network externalities and imprecise market information by modeling the decisions of each firm by a stochastic process necessary and sufficient conditions for there to be multiple equilibria in market share and for permanent lock in to one of these equilibria not to occur are presented in such a case the market lingers at prevalence of one standard with intermittent transitions to prevalence of the other the frequency of which is derived by the theory of large deviations

the changing relationship between aggregate price and output the british experience over the past two and a half decades great britain has exhibited the most noticeable increase in inflation variability among the ten major noncommunist industrialized countries in addition there has been an apparent worsening in the output inflation tradeoff this paper attempts to identify and empirically assess possible causes of the deterioration in the british output inflation tradeoff in the context of a new classical type model supply side shocks can cause an increase in the inflation rate and a decrease in real output and it is estimatedthat such shocks interacted with inflation variability to reduce real output roughly 3 3 percent between the period 1957 1968 and the period 1969 1980 also contributing to the deterioration in the output inflation tradeoff it is estimated that the decline in the natural rate of real output due to inflation variability as hypothesized by milton friedman amounted to about 2 3 to 2 5 percent between these two subperiods this abstract was borrowed from another version of this item

inflation dynamics and the output inflation trade off international panel data evidence we explore the impact of inflation and its variability on the output inflation trade off using a unified single step approach in a panel data context a limitation of earlier empirical approaches is that they focus on either cross country or country by country time series analyses this paper employs a dynamic heterogeneous panel data specification and uses an all encompassing estimation framework that accounts for parameter heterogeneity cross sectional dependence dynamics and non stationarity our sample covers 60 countries from 1970 to 2010 while inflation variability reduces the trade off for specific periods and country groups an unambiguous and more pronounced negative relation emerges between the inflation rate and the responsiveness of real output to nominal shocks the findings are in line with the new keynesian view of a negative association between the rate of inflation and the output inflation trade off as well as with the observed flattening of the phillips curve over the past decades

competing macro hypotheses in the united states a kalman filtering approach the empirical validity of alternative views about the short run determinants of real output growth in the united states is investigated a nested framework is used to test the macro rational expectations mre hypothesis directly against two competing hypotheses the neo keynesian view that anticipated and unanticpated monetary policy both matter and friedman s 1977 proposition that increased inflation uncertainty reduces real output at least temporarily the unobservable explanatory variables are obtained from time varying parameter models of inflation and money growth which generate forecast errors and their conditional variances consistent with rational expectations under a continuously chaning policy regime the empirical results strongly support friedman s view the mre hypothesis must be rejected since both anticipated and unanticipated monetary changes matter the results prove robust across different model specifications and estimation techniques

anticipated inflation the frequency of transactions and the slope of the phillips curve this paper examines the effects of expected inflation on the responsiveness of output to nominal disturbances in the framework of a localized markets model the mechanism described in the theoretical part of the paper is that expected inflation has a positive effect on the transaction frequency which in turn increases the flow of price information across markets more information implies less misperception of monetary shocks as relative shifts in excess demand resulting in lower sensitivity of real output to these socks the empirical implication of this proposition namely that expected inflation reduces the coefficient of nominal shocks in an output equation is tested first using data across countries and then with time series data from the united states the first test uses lucas s and alberro s estimates of phillips curve coefficients from different countries and the corresponding average inflation rates the second test involves data from the post world war ii period it uses nominal rates of return on treasury bills and corporate bonds as measures of anticipated inflation and barro s estimates of unanticipated money in general results in both tests provide support stronger than expected for the implication of the theory this abstract was borrowed from another version of this item

self reinforcing mechanisms and interactive behaviour we consider the possibility of switching between two options when there are benefits from compatibility and imprecise information about the other agents choices we find that lock in to one of multiple equilibria is just a temporary occurrence the system lingers at prevalence of one option with intermittent transitions to prevalence of the other

installed base and compatibility innovation product preannouncements and predation a good is often more valuable to any user the more others use compatible goods the authors show that this effect may inhibit innovation if an installed base exists and transition to a new standard must be gradual early adopters bear a disproportionate share of transient incompatibility costs this can produce excess inertia the installed base however is stranded if the new standard is adopted this may create excess momentum these dynamic effects have strategic implications temporary price cutting can permanently prevent entry and product preannouncements can be critical in innovation these strategic actions have ambiguous welfare effects

money and economic activity inventories and business cycles abstract incomplete information is a necessary condition for any real effects produced by monetary impulses an alternative to the local global inference problem is explored in this paper agents are confronted with permanent and transitory shocks even with full knowledge about the stochastic structure their best perception at any particular time will usually be erroneous prices for each period are set at the beginning of the period on the basis of market conditions the realization of the shock process thus creates a short run disequilibrium absorbed by inventory adjustments this adjustment translates perceived transitory monetary shocks into serially correlated output movements the analysis proceeds within the context of rational expectations it offers a generalization of equilibrium analysis in two respects prices are always in equilibrium relative to perceived conditions but they do not reflect all ongoing shocks quantity adjustments reflect the perceived transitory shocks the framework used involves moreover a stock flow interaction operated by inventory adjustments the stock flow interaction imposes at any time a future expected adjustment path for price level and quantities to the system s unique stock equilibrium a major implication of the analysis resolves a puzzle experienced in a recent paper by robert hall it reconciles intertemporal substitution with lagged effects of monetary impulses it also reconciles small and inconclusive cyclic movements in real wages with the occurrence of production function and large variations in unemployment lastly the nature of the inference problem determined by the pattern of incomplete information produces serially correlated movements conditioned on large permanent shocks

new evidence on the output inflation trade off from developing economies the case of the cfa franc zone this aim of this paper is to give a contribution to the debate on whether output inflation trade offs are negatively influenced by the mean of inflation as postulated by new keynesians or by the variability of inflation as postulated by neo classical economists to remove any concerns about the arbitrariness of the choice of the sample the analysis will focus on a group of countries belonging to the same currency union the franc zone the results do not provide conclusive evidence on either theory as it was found that there existed a negative relation between the output inflation trade offs and the mean of inflation on the one hand and the variability of inflation on the other

the time varying parameter model for modeling changing conditional variance the case of the lucas hypothesis the main econometric issue in testing the lucas 1973 hypothesis in a time series context is estimation of the forecast error variance conditional on past information the conditional variance may vary through time as monetary policy evolves and agents are obliged to infer its present state under the assumption that a monetary policy regime is continuously changing a time varying parameter model is proposed for the monetary growth function based on kalman filtering estimation of recursive forecast errors and their conditional variances the lucas hypothesis is tested for the u s economy 1964 1 1985 4 using monetary growth as aggregate demand variable the lucas hypothesis is rejected in favor of friedman s 1977 hypothesis the conditional variance of monetary growth affects real output directly not through the coefficients on the forecast error term in the lucas type output equation

adaptive expectations and the variance hypothesis abstract it is shown that lucas variance hypothesis on output inflation tradeoff is consistent even with adaptive price expectations hence empirical evidence of the model need not support the rational expectations natural rate hypothesis

the variability of output inflation tradeoffs abstract this paper examines the nature of the variability of the output inflation tradeoff in the united states canada and the united kingdom a stochastic coefficient regression specification is used to allow for the possibility that the tradeoff varies continuously over time where our estimates show evidence of variability in the terms of the output inflation tradeoff we examine the extent to which such variability might be associated with period by period variation in the variance of inflation and aggregate demand along lines suggested by the new classical models of robert lucas

the influence of unanticipated money growth on real output some cross country estimates two major propositions can be deduced from the theories of the business cycle developed in 4 14 15 161 1 monetary growth affects real output only if it is unanticipated 2 the impact on output of unanticipated monetary growth declines the more unpredictable monetary growth becomes proposition 1 has been tested on u k data in 2 3s on u s data in 5 6 7 and on canadian data in 19 the best known but somewhat informal test of proposition 2 is contained in 15 on data from a cross section of eighteen countries l in this paper we apply the method described in 3 to test proposition 1 using data from a range of countries furthermore we develop and discuss a formal method of testing proposition 2 and apply that method to the same data our main conclusion is that neither proposition can be decisively rejected

time varying discrete monetary policy reaction functions a novel dynamic ordered probit model with time varying parameters is proposed to estimate a monetary policy reaction function with narrative based monetary indicators the estimation and inference are carried out using the bayesian simulation based approach empirically these are the following findings first there is strong evidence in support that the central bank in taiwan responds counter cyclically to inflation but weaker if any evidence to economic growth secondly the persistence and consistence in policy making of the monetary authority is confirmed by the significance of the positive autoregressive coefficient although not all the estimates of the tvp dop model provide at least partial support of time varying parameters finally the results indicate that studies of the discrete monetary policy reaction functions without explicitly considering the possible dynamics inherent in the time series data and time variations in model parameters may be inappropriate if not incorrect

costly search and mutual fund flows this paper studies the flows of funds into and out of equity mutual funds consumers base their fund purchase decisions on prior performance information but do so asymmetrically investing disproportionately more in funds that performed very well the prior period search costs seem to be an important determinant of fund flows high performance appears to be most salient for funds that exert higher marketing effort as measured by higher fees flows are directly related to the size of the fund s complex as well as the current media attention received by the fund which lower consumers search costs

inflation and economic growth a multi country empirical analysis the world eocnomy is currently adjusting to a low inflation regime which has implicastions for the cross country distribution of world growth opportunities in contrast to previous related work which assumes unidirectional causality this paper uses the granger methodology to examine both the direction and pattern of causality between inflation and economic growth in 70 countries using annual data over the period 1960 89 among the conclusions are that first the relationship between inflation and growth is non uniform across countries 40 of countries studied reveal no causality one third exhibit unidirectional causality and about one fifth of countries show bidirectional causality second a vast majority of countries which show either uni or bi directional causality beong to the industrial group and third the low world inflation regime will on balance redistribute real growth opportunities benefit away from the developing countries towards the industrialized countries

estimation of a forward looking monetary policy rule a time varying parameter model using ex post data abstract in this paper we consider estimation of a time varying parameter model for a forward looking monetary policy rule by employing ex post data a heckman type 1976 the common structure of statistical models of truncation sample selection and limited dependent variables and a simple estimator for such models annals of economic and social measurement 5 475 492 two step procedure is employed in order to deal with endogeneity in the regressors this allows us to econometrically take into account changing degrees of uncertainty associated with the fed s forecasts of future inflation and gdp gap when estimating the model even though such uncertainty does not enter the model directly we achieve efficiency in estimation by employing the standardized prediction errors for inflation and gdp gap as bias correction terms in the second step regression we note that no other empirical literature on monetary policy deals with this important issue our empirical results also reveal new aspects not found in the literature previously that is the history of the fed s conduct of monetary policy since the early 1970s can in general be divided into three subperiods the 1970s the 1980s and the 1990s the conventional division of the sample into pre volcker and volcker greenspan periods could mislead the empirical assessment of monetary policy

strategic interactions and portfolio choice in money management theory and evidence the author study portfolio choice of strategic fund managers in the presence of a peer based under performance penalty while the penalty generates herding behavior correlated trading among managers is exacerbated when a strategic setting is considered the equilibrium portfolios are driven by the least restricted manager who may vary according to the realization of returns the author compare model predictions to evidence from the colombian pension fund management industry where six asset managers are incharge of portfolio allocation for the mandatory contributions of the working population these managers are subject to a peer based under performance penalty known as the minimum return guarantee mrg the author study trading behavior by managers before and after a change in the strictness of the mrg in june 2007 the evidence suggests that a tighter mrg results in more trading in the direction of peers a behavior that is more pronounced for under performing managers is how that these findings areconsistent with the qualitative and quantitative predictions of the theoretical model

ranking games and gambling when to quit when you re ahead it is common for rewards to be given on the basis of a rank ordering so that relative performance amongst a cohort is the criterion in this paper we formulate an equilibrium model in which an agent makes successive decisions on whether or not to gamble and is rewarded on the basis of a rank ordering of the final position amongst competing players one application of this model is to the behavior of mutual fund managers who are paid depending on funds under management which in turn are greatly influenced by annual or quarterly rank orderings our model deals with a situation in which fund managers can elect either to pick stocks or to use a market tracking strategy in equilibrium the distribution of the final position will have a negative skew we explore how this distribution depends on the number of players the probability of success when gambling the structure of the rewards and on information regarding the performance of other players

evidence on inflation output trade off in developing and industrial countries this paper subjects lucas s output inflation trade off study to further empirical investigation the cross country study divides the 111 countries covered into 90 developing countries and 21 advanced countries lucas s proposition is that volatility of aggregate demand growth should reduce the impact of aggregate demand growth on the cyclical output and the implication of this is that there is no output inflation trade off in line with the natural rate theory we employ annual data over periods that fall between 1958 and 1985 in order to conduct the test our findings suggest that lucas s proposition is valid for developed economies but not for developing economies

price and output responsiveness to nominal changes under differential information abstract the paper considers how changes in nominal income are transmitted into price and output changes within a setting where the traditional assumption of instantaneous market clearing costless coordination is given up in favour of a more realistic setting where price decisions are made by numerous agents firms acting independently on their private decentralized information the responsiveness of firm specific prices is considered and it is shown how absolute or nominal price rigidity can be explained building this into a theory of the general price level it is proved that heterogenously perceived nominal changes affect the price level less than proportionally moreover it is shown how a phillips curve relation between inflation and output can be rationalized within the model finally the issue of relative price variability is considered and related to misallocation of economic resources under differential information

relative vs absolute price rigidity abstract it is shown that to explain some nominal price rigidity it is sufficient to assume changes in costs to be imperfect signals on nominal changes and not necessary to assume nominal costs to respond less than proportionally to nominal changes

changes to mutual fund risk intentional or mean reverting an empirical issue is whether a mutual fund s change in intertemporal risk is intentional or arises from risk mean reversion our methodology uses actual fund trades to identify funds that actively change risk funds that are statistically identified as trading to change return variance or tracking error variance do not exhibit risk mean reversion mostly funds trade to reduce risk and in particular tracking error variance this is most evident for funds that previously attained a low tracking error variance we find no evidence of a relation between past performance and intended changes to return variance or tracking error variance

of tournaments and temptations an analysis of managerial incentives in the mutual fund industry we test the hypothesis that when their compensation is linked to relative performance managers of investment portfolios likely to end up as losers will manipulate fund risk differently than those managing portfolios likely to be winners an empirical investigation of the performance of 334 growth oriented mutual funds during 1976 to 1991 demonstrates that mid year losers tend to increase fund volatility in the latter part of an annual assessment period to a greater extent than mid year winners furthermore we show that this effect became stronger as industry growth and investor awareness of fund performance increased over time

disequilibrium dynamics with inventories and anticipatory price setting this paper studies the sequence of short run quantity constrained equilibria of a model with a single storable output labor and money the durability of output gives rise to inventory fluctuations which influence the course of the equilibria attained one special feature of interest is the assumption that prices are not at the level which would equilibrate all markets if there were no stochastic shocks to the economy with prices frozen at this level the nature of the realized shocks determines the type of disequilibrium realized and the unintended component of inventory change the analysis concentrates on two questions what is the statistical nature of the process governing the real wage output employment and inventories and is it possible to test this model against the alternative hypothesis that prices are continually flexible even after the shocks have disturbed the system we find that although these theories are similar in their qualitative structure tests can be developed we also show how the frequencies of different types of quantity constrained equilibria vary with the stochastic specification this may shed some insight on why it is commonly believed that some types of disequilibrium phenomena have not been observed this abstract was borrowed from another version of this item

difference in interim performance and risk taking with short sale constraints abstract absent much theory empirical works often rely on the following informal reasoning when looking for evidence of a mutual fund tournament if there is a tournament interim winners have incentives to decrease their portfolio volatility as they attempt to protect their lead while interim losers are expected to increase their volatility so as to catch up with winners we consider a rational model of a mutual fund tournament in the presence of short sale constraints and find the opposite interim winners choose more volatile portfolios in equilibrium than interim losers several empirical works present evidence consistent with our model however based on the above informal argument they appear to conclude against the tournament behavior we argue that this conclusion is unwarranted we also demonstrate that tournament incentives lead to differences in interim performance for otherwise identical managers and that mid year trading volume is inversely related to mid year stock return

myopic risk taking in tournaments abstract there is a common notion that incentive schemes in the financial industry trigger myopia and risk taking in some sense this contrasts with the concept of myopic loss aversion mla which implies that myopia mitigates risk taking a number of experimental studies support the mla hypothesis by showing that people take less risk the more frequently their investments are evaluated in this paper we show experimentally that if subjects are exposed to tournament incentives the standard mla effect disappears rather there is a tendency towards more risk taking the more frequently investments are evaluated

rational expectations supply shocks and the stability of the inflation output tradeoff some time series evidence for the united kingdom 1957 1977 abstract the lucas 1973 supply curve is modified to incorporate both specific and aggregate supply shocks in addition to demand shocks a time series test of the rational expectation natural rate renr hypothesis is derived monthly data for the united kingdom 1957 1977 are split into periods based on a moving variance procedure utilizing zellner palm transfer functions it is shown that a significant reduction in the short run inflation output tradeoff is associated with an increase in the variance of the unanticipated price level this provides evidence in favor of the renr hypothesis moreover the worsened tradeoff is shown to have been caused by higher supply side rather than demand side volatility

technology adoption in the presence of network externalities we analyze technology adoption in industries where network externalities are significant the pattern of adoption depends on whether technologies are sponsored a sponsor is an entity that has property rights to the technology and hence is willing to make investments to promote it key findings include the following 1 compatibility tends to be undersupplied by the market but excessive standardization can occur 2 in the absence of sponsors the technology superior today has a strategic advantage and is likely to dominate the market 3 when one of two rival technologies is sponsored that technology has a strategic advantage and may be adopted even if it is inferior 4 when two competing technologies both are sponsored the technology that will be superior tomorrow has a strategic advantage

what makes the output inflation trade off change the absence of accelerating deflation in japan it is standard to model the output inflation trade off as a linear relationship with a time invariant slope we assess empirical evidence for two sets of theories that allow for endogenous variation in the slope of the short run phillips curve at an empirical level we examine why large negative output gaps in japan in the late 1990s did not lead to accelerating deflation but instead coincided with stable albeit moderately negative inflation our results suggest that this episode is most convincingly interpreted as reflecting a gradual flattening of the phillips curve we find that this flattening is best explained by models with endogenous price durations these models imply that in any economy where trend inflation is substantially lower or substantially higher today than in past decades time variation in the slope of the phillips curve has become too important to ignore

information aggregation and policy the function of monetary policy to alter the informational content of money price signals is examined in a model where traders can observe an economy wide financial signal and a local commodity price under a passive policy money demand disturbances which are not directly observable are shown to be confused with real productivity shocks and thereby preclude prices from fully reflecting all information even when the policy authority has no informational advantage prospective money growth feedback rules can improve the structure of available information applications of the rational expectations hypothesis to monetary theory have focused on the informational aspects of money price signals a key element of the models of lucas 1972 1975 barro 1976 and sargent and wallace 1975 is that agents have limited powers of information acquisition and use prices as imperfect summaries from the rest of the world those works have suggested that monetary policy can affect the informational content of observed price signals and thereby affect real variables in weiss 1980a it was shown systematic money growth feedback rules can contribute to economic efficiency when the money demands of one group are based on factors not directly observed by all in this context monetary policy can alter the information content transmitted from the informed to the uninformed through observation of nominal price signals a limitation of these analyses is the omission of economy wide financial signals clearly stock and bond prices are observed accurately and costlessly empirically there are strong comovements between financial signals and economic activity traditional keynesian theory argues that financial signals exert an important influence on output by affecting the demand for new capital goods understanding the informational role of such signals is crucial to any theory which explains fluctuations as arising from incomplete information the present analysis investigates the structure of available information with its implications for real variables in a model where agents trade on both an economy wide capital market and a local commodity market the model has positive implications for the comovements of money demand disturbances aggregate investment expected and realized returns as well as normative implications for the conduct of policy the structure of exogenous information in the model differs from that of my earlier paper rather than assuming two types of traders informed and uninformed the model considers traders to have symmetric although noisy exogenous private information in this framework the economy wide market both aggregates and transmits individuals information about an aggregate structural variable this modification is both analytically convenient and illustrates how noise in the price system alters the importance of public relative to private sources of information the idea that prices aggregate individual information was first formalized in grossman 1976 in that paper a non monetary model of a speculative market was developed in which the price system conveyed all relevant information so as to yield an efficient allocation however this feature was also shown to break down if prices are influenced by

the lucas hypothesis on the phillips curve further international evidence abstract this paper is a further attempt to test the lucas hypothesis on the phillips curve by making cross country comparisons that hypothesis posits that nominal shocks affect real aggregates only if individuals mistake them for what they are not movements in real variables the existence of a trade off between output and inflation is conditional on economic agents misinterpreting the price movements they observe countries with widely fluctuating exogenous shocks will have a more vertical phillips curve as their inhabitants sharpen their instrumental to differentiate between real and nominal shocks hence cross country comparisons provide fertile grounds to test this hypothesis if it holds true we should find a positive correlation between phillips curve slopes and the standard deviations of the exogenous shocks the evidence presented here confirms lucas s findings

cross regime evidence of macroeconomic rationality rational expectations macromodels predict that the short run effects of monetary shocks on real output x should be negatively related across policy regimes to the variability of such shocks this paper presents cross regime tests of this and related propositions based on a sample of 47 countries the within regime estimates reveal a consistent pattern of positive short run real output effects with neutrality of money holding in the long run the cross regime tests show that x is negatively related to the variance of monetary shocks positively related to the variance of real output shocks negatively related to the variance of velocity shocks and unrelated to either the mean or variance of anticipated money growth

testing the rational expectations hypothesis further evidence this article tests the macro rational expectations hypotheses of rationality and neutrality for quarterly u s data the vector autoregressive representation is derived and the implied interequation nonlinear restrictions are tested using the wald statistic despite several modifications adopted here the results confirm the robustness of earlier findings that is the test results support rationality but not neutrality

risk taking behavior in mutual fund tournaments abstract we develop a two period model of a brown et al j finance 51 1996 85 mutual fund tournament in which two fund managers with unequal midyear performances compete for new cash inflows when one of the managers is an exogenous benchmark winning managers index and losing managers gamble however when both managers are active the winning manager is more likely to gamble expecially when the midyear performance gap is high or when stocks offer high returns and low volatility empirical evidence that winning managers gamble has been documented by other researchers but it has been interpreted as evidence against the tournament model with a dataset of weekly returns from 1984 to 1996 for 660 mutual funds we text for other tournament effects predicted by the model our results suggest a role for the theory of tournaments in studies of mutual fund behavior

the impact of renewable energies on eex day ahead electricity prices in this paper we analyze the impact of renewable energies wind and photovoltaic on the formation of day ahead electricity prices at eex we give an overview of the policy decisions concerning the promotion of renewable energy sources in germany and discuss their consequences on day ahead prices an analysis of electricity spot prices reveals that the introduction of renewable energies enhances extreme price changes in the frame of a dynamic fundamental model we show that there has been a continuous electricity price adaption process to market fundamentals furthermore the fundamental drivers of prices differ among hours with different load profiles our results imply that renewable energies decrease market spot prices and have implications on the traditional fuel mix for electricity production however the prices for the final consumers increased overall because they must pay in addition the feed in tariffs for the promotion of renewable energy

intracountry evidence on the lucas variance hypothesis intracountry evidence on the lucas variance hypothesis i introduction seventeen years ago lucas 1973 developed an aggregate supply model that challenged the efficacy of neo keynesian macroeconomic stabilization policy and significantly altered the development of macroeconomic models employing a multimarket stochastic equilibrium model lucas assumed that individual suppliers decide how much to produce based on perceived relative prices their expectations of future prices and demand are formed rationally using all available information about specific and economy wide prices and quantities changes in market specific prices however reflect both changes in the general price level and changes in relative prices individual suppliers cannot distinguish between the two because they have instantaneous information about their own specific prices but only lagged information about the general price level thus a current unanticipated increase in the general price level and nominal aggregate demand will be partly perceived by suppliers as an increase in the relative price and relative demand for their goods and they will temporarily increase output a highly volatile general price level and nominal aggregate demand result in less general relative price confusion and a fading of the short run output inflation tradeoff that is the lucas model suggests an inverse relationship between the output inflation tradeoff and the variability of the rate of inflation and the rate of change of nominal aggregate demand lucas used a sample of eighteen countries to see whether the terms of the output inflation tradeoff vary across countries in the way predicted by the natural rate theory 1973 330 he estimated the following reduced form supply function over the 1952 67 period y sub ct pi delta pi delta chi sub t lambda y sub c t 1 1 where y sub ct is detrended real gnp delta chi sub t is the change of the natural logarithm of nominal gnp delta is the average rate of demand expansion lambda is the speed of adjustment with lambda less than to 1 and pi is the response of real gnp to changes in nominal gnp with 0 is not less than or equal to pi is not less than or equal to 1 since the estimated tradeoff coefficients were found to be greater for a group of sixteen stable countries than for two highly volatile countries lucas argued that the behavior of the estimated pi values across countries is in striking conformity with the natural rate hypothesis 1973 332 empirical studies by albero 1981 attfield and duck 1983 fernadez 1977 hanson 1980 hercowitz 1983 and koskela and viren 1980 have generally provided cross country evidence supporting luca s variance hypothesis froyen and waud 1980 however presented in addition to cross country evidence limited intracountry evidence for 1 the relationship between the output inflation tradeoff and the variances of the rate of change of nominal income and the price level and 2 the relationship between the variance of the inflation rate and the variance of the rate of change of nominal income they examined these relationships on a cross country basis for each of ten industrialized countries for the 1956 76 period the 1957 66 and 1967 76 subperiods were used to make intracountry comparisons in individual countries their cross country and intracountry results support the hypothesis that the output inflation tradeoff and the variance of the inflation rate are inversely related their evidence however does not suggest that the variance of the rate of change of nominal income is negatively correlated with the tradeoff and positively correlated with the variance of the inflation rate 1 it is assumed in luca s paper and all other cross country studies that the slope of the supply curve gamma and the variance of the specific market price from its economy wide average tau

how tournament incentives affect asset markets a comparison between winner take all tournaments and elimination contests abstract we investigate the impact of investment managers tournament incentives on investment strategies and market efficiency distinguishing between winner take all tournaments wta where a minority wins and elimination contests ec where a majority wins theoretically we show that investment managers play heterogeneous strategies in wta and homogeneous strategies in ec and markets are more prone to mispricing in wta than in ec experimentally we find that investment managers play more heterogeneous strategies in wta than in ec but this does not trigger significant differences in prices moreover prices in wta and ec do not differ significantly from markets composed of linearly incentivized subjects

devaluations and income distribution in latin america although the adoption of floating exchange rates by industrial countries may have reduced their foreign trade preoccupations most developing countries ldcs retain some form of fixed rates and have to confront with seemingly increasing frequency the dilemmas raised by large balance of payment deficits in spite of the clamor that arises over the allegedly negative impact on real wages and income distribution of the typical stabilization package of exchange rate devaluation and domestic contraction little rigorous study of the problem has been attempted since diaz alejandro s pathbreaking work of over two decades ago 12 in this article we present a model in which devaluations and domestic contraction2 lower the real wage and worsen the distribution of income and test that hypothesis for nine latin american countries for the theoretical presentation of our argument we construct a pair of aggregate supply curves one modeling labor supply along classical lines the other utilizing what is called the new classical macroeconomics the demand side is composed alternatively of a straightforward function representing changing domestic demand or of formulations of devaluations utilizing either of two markedly different assumptions about what happens to the money supply although these models have different implications about what happens to aggregate output 47 they all agree as to the effects on real wages a brief argument is then presented as to why changes in real wages should determine changes in labor s share of output or the functional distribution of income empirical tests support our hypotheses we also discuss the relation between labor s share and the size distribution of income and the broader question of intersectoral income redistribution due to these demand shifts we end the paper with some concluding remarks on related issues

does anticipated monetary policy matter an econometric investigation a heated debate has arisen over the policy ineffectiveness proposition associate with the work of lucas sargent and wallace it postulates that anticipated aggregate demand policy will have no effect on business cycle fluctuations so that one deterministic feedback policy rule is as good as any other from the point of view of stabilizing the economy this paper develops a methodology for empirically analyzing rational expectations models displaying this neutrality result and then applies it to the important question of whether anticipated monetary policy matters to the business cycle

incidence and consequences of risk taking behavior in tournaments evidence from the nba we empirically explore the relevance and efficiency of risk taking behavior in tournaments we use data from the national basketball association nba and measure risk taking by the fraction of three point shots in basketball games we examine how point differences between teams during games affect their subsequent risk taking behavior it is found that teams that are trailing are more likely to increase their use of three point shots we additionally analyze the consequences of this change in behavior enhanced risk taking is inefficient in the vast majority of cases and is only beneficial if a team is trailing by a rather large margin we discuss possible explanations for these decision errors jel m5 d81 j30

disinflation credibility and price inertia a danish exposition this paper analyses the disinflationary policy pursued in denmark since october 1982 focusing on the phillips curve trade off and the credibility of this disinflationary policy the overall conclusion confirms no significant indication of the disinflationary policy being credible

does option compensation increase managerial risk appetite this paper solves the dynamic investment problem of a risk averse manager compensated with a call option on the assets he controls under the manager s optimal policy the option ends up either deep in or deep out of the money as the asset value goes to zero volatility goes to infinity however the option compensation does not strictly lead to greater risk seeking sometimes the manager s optimal volatility is less with the option than it would be if he were trading his own account furthermore giving the manager more options causes him to reduce volatility managers with convex compensation schemes play an important role in financial markets this paper solves for the optimal dynamic investment policy for a risk averse manager paid with a call option on the assets he controls the paper focuses on how the option compensation impacts the manager s appetite for risk when he cannot hedge the option position on one hand the convexity of the option makes the manager shun payoffs that are likely to be near the money under the optimal policy the manager either significantly outperforms his benchmark or else incurs severe losses furthermore in examples of optimal trading strategies asset volatility goes to infinity as asset value goes to zero yet option compensation does not strictly lead to greater risk seeking as asset value grows large or if the evaluation date is far away the manager moderates asset risk for example if the manager has constant relative risk aversion crra asset volatility converges to the merton constant as asset value goes to infinity in some situations the manager actually chooses a lower asset volatility than he would if he were investing on his own because the leverage inherent in his option magnifies his exposure to the asset volatility in addition with all constant or decreasing absolute risk averse utility functions from the hyperbolic absolute risk averse hara class giving the manager more options causes him to reduce asset volatility in the crra case for example the manager targets a fixed volatility for his personal