tracking the new economy using growth theory to detect changes in trend productivity abstract the acceleration of productivity after 1995 prompted a debate over whether the economy s underlying growth rate would remain high in this paper we draw on growth theory to identify variables other than productivity namely consumption and labor compensation to help estimate trend productivity growth we treat that trend as a common factor with two regimes high and low growth our analysis picks up striking evidence of a return in 1997 to the high growth regime nearly 25 years after a switch from high to low growth we find that both the common factor and regime switching aspects of the model are important for identifying changes in trend productivity and also show that the trend breaks are more difficult to detect with per capita as opposed to per hour based data because of persistent labor supply shifts finally we argue that our methodology is effective in detecting changes in trend in real time in the case of the 1990s the methodology would have signaled the regime switch by 1999 or within roughly six quarters of when it occurred according to the full sample

measuring inflation expectations a survey data approach expectations of inflation can be important determinants of actual inflation because they influence the process of wage bargaining price setting speculative buying and financial investing decisions englander and stone 1989 a central bank given its primary objective of price stability therefore takes a natural interest in inflationary expectations of economic agents in fact as illustrated by the theoretical work of e g kydland and prescott 1977 and barro and gordon 1983 inflationary expectations of the public are an important factor determining the success of the central bank in achieving its policy goal measures of inflation expectations can be used for monetary policy purposes for example as information variables in the sense defiined by friedman 1993 or as intermediate targets in the so called direct inflation targeting strategy svensson 1996 fuhrer 1997

optimal punishment schemes with state dependent preferences i introduction it is well known in the economics of crime literature that both the certainty and severity of punishment can be manipulated to deter criminal behavior as polinsky and shavell 1979 show when punishment takes the form of a fine the optimal combination of the probability of punishment and the magnitude of the fine depends on the risk attitudes of offenders and on the costs of catching and convicting offenders this paper examines how the optimal combination of certainty and severity are affected if offenders preferences are state dependent state dependent utility is commonly used in situations in which the state of the world affects how well individuals are able to enjoy the consumption of their wealth death of the individual is an obvious example and hirschleifer and riley 1992 also suggest the death of a child the loss of use of a limb or the loss of a precious heirloom there are many reasons to add conviction for a crime to this list 1 first if the individual is sent to prison his consumption opportunities are obviously diminished even without a prison sentence though utility might best be modeled as being state dependent for utility to be state independent there must exist some decrease in wealth that has the same effect on the utility function as being convicted of the crime if the offender is risk averse and has state independent utility a loss of wealth reduces the level of utility but increases marginal utility it is easy to imagine why being convicted of a crime would reduce the level of utility but it is difficult to imagine why it would increase the individual s marginal utility of wealth for example drivers who are caught speeding are angered beyond the level consistent with the expected loss of income but this additional anger does not lead to an additional increase in the marginal utility of wealth in addition to these considerations lott 1992a b provides evidence that conviction leads to increased divorce rates and constrained job opportunities the former reduces the level of utility but is unlikely to increase marginal utility and should therefore be modeled as a shift in the utility function constrained job opportunities reduce both income and job satisfaction and the reduction in job satisfaction is again best modeled as a shift in the utility function as a final argument supporting the use of state dependent preferences neilson and winter 1997 show that if offenders preferences are state dependent it is possible for them to be both risk averse and more sensitive to changes in the certainty of punishment than to proportional changes in the severity of punishment becker 1968 notes this empirical finding 2 and concludes that if offenders are expected utility maximizers they cannot be risk averse 3 polinsky and shavell 1979 demonstrate that when offenders are risk averse and have state independent utility increasing the fine increases social loss by increasing the amount of risk borne by offenders consequently in the extreme case in which it is costless to catch and convict offenders the optimal policy has a relatively low fine but punishes criminals with probability one this paper shows that if preferences are state dependent there is an additional social cost associated with setting a high probability of punishment because it makes it more likely that criminals are on their lower utility functions to avoid the additional social cost the certainty of punishment should be reduced ii the model the model presented below is identical to that in polinsky and shavell 1979 except for the addition of state dependent preferences identical individuals choose whether to commit a crime or not 4 gains from crime are random with probability q the individual gains a and with probability 1 q he gains b greater than a even though the gains are random it is assumed that the individual knows the true value of the gain before any decision must be made

on the effective use of stigma as a crime deterrent abstract stigma affects convicted offenders if employers reduce their wage current research considers this kind of informal sanctioning as an effective means for reducing crime and proposes its fostering by the government in this article i first show that increasing stigma may even enhance crime while stigma enhances deterrence of an unconvicted offender it may drive a stigmatized ex convict towards recidivism secondly i provide a solution for guaranteeing stigma s effectiveness notably a harsh er punishment for repeat offenders is required finally with the theoretical analysis as a background stigmatization policies pursued in the states switzerland and spain are compared

the expected penalty for committing a crime several papers have noted and sought to explain the paradox of minimum wage law compliance compliance rates are high even though the penalty for violating the law is allegedly less than the underpayment to workers by comparison we show that the actual penalty exceeds the underpayment we combine our estimates of the costs of violating the law with estimates of the probability of apprehension to arrive at the expected cost of violating the law in contrast with previous work we find that the expected costs are sufficiently high to make compliance rational

the role of market forces in assuring contractual performance the conditions under which transactors can use the market repeat purchase mechanism of contract enforcement are examined increased price is shown to be a means of assuring contractual performance a necessary and sufficient condition for performance is the existence of price sufficiently above salvageable production costs so that the nonperforming firm loses a discounted steam of rents on future sales which is greater than the wealth increase from nonperformance this will generally imply a market price greater than the perfectly competitive price and rationalize investments in firm specific assets advertising investments thereby become a positive indicator of likely performance

uncovering financial market expectations of inflation this paper seeks to uncover market expectations of inflation from the joint dynamics of nominal interest rates and observed inflation i postulate 1 the existence of a stable vector autoregression in unobserved variables and 2 efficient financial markets the estimation procedure requires no further structural assumptions the econometrician need not observe all the information used by agents in forming forecasts or all the variables that influence real interest rates i find no empirical evidence that economic recessions are correlated with inflation forecast errors however postwar recessions are associated with ex ante real interest rates that are twice the postwar average

does conditionality work a test for an innovative us aid scheme performance based aid has been proposed as an alternative to the failed traditional approach whereby donors make aid conditional on the reform promises of recipient countries however hardly any empirical evidence exists on whether ex post rewards are effective in inducing reforms we attempt to fill this gap by investigating whether the millennium challenge corporation mcc was successful in promoting better control of corruption we employ a difference in difference in differences ddd approach considering different ways of defining the treatment group as well as different time periods during which incentive effects could have materialized we find evidence of strong anticipation effects immediately after the announcement of the mcc while increasing uncertainty about the timing and amount of mcc aid appears to have weakened the incentive to fight corruption over time

shirking and sorting in a political market with finite lived politicians this paper analyzes principal agent slack in the context of a political market composed of voters challengers and incumbents the introduction of a last period via finite livedness in combination with voters imperfect information about politicians preferences causes time varying shirking behavior on the part of politicians political markets eventually sort out those politicians with significantly deviant policy preferences potentially providing a solution to the last period problem and enabling politicians to make credible commitments in the extreme sorting can insure that it is not worthwhile for potential shirkers to run for office a systematic relationship between political shirking and number of terms in office may exist and depends on how quickly sorting takes place we show that evidence of little if any shirking is quite consistent with politicians having diverse and strongly held policy preferences in addition if sorting is a significant feature of political markets cross sectional studies will tend to oversample little and non shirking politicians compared to longitudinal studies reinterpretations of existing empirical work are also discussed

squealer dealers the market for information in federal drug trafficking prosecutions never rat on your friends and always keep your mouth shut jimmy conway goodfellas citing his invaluable aid in the war against the mafia a federal judge yesterday rewarded a once powerful mob figure who became a major government informer by sentencing him to just five years in prison despite his admitted involvement in 19 murders the new york times september 27 19941 i introduction since the seminal theoretical work of becker 1968 the economics of crime has developed an extensive empirical literature 2 this article adds to that literature by studying markets for information in federal prosecutions of drug trafficking conspiracies in these markets law enforcement demands information that can help prosecute and imprison suspected drug traffickers while other drug traffickers supply the information 3 the price over which demanders and suppliers higgle is the size of an informer s sentence reduction 4 mustard 2001 using federal sentencing data found that different demographic groups have different rates relative quantities of providing substantial assistance the federal legal term meaning information against other defendants 5 this article adds to mustard 2001 by using federal sentencing of convicted drug traffickers to uncover whether different demographic groups have different relative prices for their information i e whether different groups receive larger sentence reductions higher prices or smaller sentence reductions lower prices when providing substantial assistance then in a simple manner similar to well known examinations of the returns to education in the 1970s and 1980s levy and mumane 1992 murphy and welch 1989 price and quantity determine whether certain groups experience different relative demand or relative supply for their testimony groups experiencing high relative demand have their information highly sought by law enforcement and therefore have high rates quantities of providing substantial assistance and large sentence reductions prices when doing so those with low relative demand have low quantities and low prices groups with high relative supply of substantial assistance have high quantities but low prices while those with low relative supply have low quantities and high prices this article further adds to the literature by going beyond demographic factors and examining what criminality related factors e g criminal history role in a criminal conspiracy and type of drug dealt affect supply and demand for information and by examining supply and demand conditional on expected prison sentence results show that women and better educated defendants experience high relative demand for information while blacks hispanics and non u s citizens experience low relative demand groups facing long prison sentences dealers of harder drugs those with long criminal histories and high level dealers have high relative supply while those facing short sentences primarily low level dealers have low relative supply when controlling for expected sentence crack dealers high level dealers and dealers with long criminal histories experience low demand race specific estimations show that women of all races experience high relative demand for information the rest of this article is organized as follows section ii discusses the federal criminal justice system emphasizing reforms established by the sentencing reform act of 1984 and the anti drug abuse act of 1986 section iii discusses the data and provides summary statistics section iv discusses my empirical methodology section v shows results and section vi attempts to explain them section vii discusses results from race specific estimations and section viii concludes ii federal criminal sentencing through most of the 1980s and before federal judges possessed near total discretion in determining sentences for criminals convicted of violating federal statutes e

the transatlantic productivity gap is r d the main culprit the literature has pointed to different causes to explain the productivity gap between europe and united states in the last decades this paper tests the hypothesis that the lower european productivity performance in comparison with the us can be explained not only by a lower level of corporate rd however using different estimation techniques the r d coefficients for the us firms always turn out to be significantly higher to see to what extent these transatlantic differences may be related to the different sectoral structures in the us and the eu we differentiated the analysis by sectors the result is that both in manufacturing services and high tech sectors us firms are more efficient in translating their r d investments into productivity increases

pooling forecasts in linear rational expectations models abstract estimating linear rational expectations models in a limited information setting requires replacing the expectations of future endogenous variables either with instrumented actual values or with forecast survey data applying the method of gottfries and persson empirical examinations of the information sets of economic agents quarterly journal of economics 103 251 259 i show how to augment these methods with actual future values of the endogenous variables to improve statistical efficiency the method is illustrated with an application to the us hybrid new keynesian phillips curve where traditional lagged instruments and the median forecast from the survey of professional forecasters both appear to miss significant information used by price setters so that forecast pooling with actual values improves the statistical fit to inflation

pre announcement and timing the effects of a government expenditure shock abstract an econometric strategy to identify a pre announced fiscal policy shock is proposed i show that the reduced form innovations can be recovered by estimating a vector moving average model using the kalman filter the structural effects are identified exploiting the shock s pre announced nature which leads to potentially different signs of the responses of some endogenous variables during the announcement and after the realization of the shock i illustrate my strategy by identifying a pre announced shock to government consumption expenditures i find that the response of private consumption is significantly negative on impact rises and becomes significantly positive two quarters after the realization of the policy shock

a dynamic model of differential human capital and criminal activity this paper presents a dynamic model of criminal activity individuals are endowed with legal and criminal human capital potential incomes in legal and criminal sectors depend on the level of the relevant human capital the rate of return and random shocks human capital can be enhanced by participating in both sectors legal human capital can also be enhanced through investment human capital is subject to depreciation individuals maximize expected discounted lifetime utility which depends on consumption the model allows analyses of the effects of recessions imprisonment rehabilitation scenarios sanctions and returns to human capital new insights such as hysteresis in criminal behaviour are obtained

can futures market data be used to understand the behavior of real interest rates this paper examines whether futures market data can be used to understand the behavior of real interest rates several ways of examining the data indicate that futures market data are not particularly informative about real interest rates not only does this evidence cast some doubt on results in previous research that make use of futures market data to draw inferences about real interest rates but it also indicates that future research on real interest rates may need to turn to a different line of attack understanding the behavior of real interest rates is a central issue in financial economics in previous research on this topic several approaches have been used to measure real interest rates in one approach real interest rates have been calculated by subtracting survey data on inflation expectations such as the livingston data from nominal interest rates the problem with survey based measures of real interest rates is that they are only as good as the survey measure of inflation expectations and there may be little incentive for the survey respondents to answer accurately an even more telling criticism of survey based measures often ignored in the literature is that the behavior of market expectations in driven by economic agents ai the margin who are eliminating unexploited profit opportunities market expectations are unlikely therefore to be well measured by the average expectations of survey respondents 2 because of doubts about survey based measures of real interest rates other

the episodic and unpredictable nature of imf lending an empirical analysis having had excess lending capacity at the beginning of 2008 by the end of the year international monetary fund imf lending had increased and in anticipation of a further increase in the demand for fund assistance arguments were being put forward for a substantial increase in imf resources analysis of imf lending over a protracted period of time reveals considerable volatility using both bivariate and multiple regression estimation this paper investigates the determinants of imf lending and examines the extent to which it is predictable although some significant relationships are discovered many of them are unstable and time variant this makes it difficult to predict imf lending with any degree of confidence the paper goes on to examine briefly the policy implications of unpredictability it is critical of the ways in which the problem has been handled in the past and it offers what it argues is a preferable solution

incarceration length employment and earnings this paper estimates effects of increases in incarceration length on employment and earnings prospects of individuals after their release from prison i utilize a variety of research designs including controlling for observable factors and using instrumental variables for incarceration length based on randomly assigned judges with different sentencing propensities the results show no consistent evidence of adverse labor market consequences of longer incarceration length using any of the analytical methods in either the state system in florida or the federal system in california

the fisher hypothesis a critique of recent results and some new evidence the fisher hypothesis 5 that nominal interest rates should respond point for point to changes in the expected inflation rate while theoretically appealing has had limited success in explaining actual interest rate movements most empirical work has shown that net after tax nominal interest rates are not as sensitive to changes in expected inflation as the hypothesis suggests they should be more troublesome still are the results of two recent studies carmichael and stebbing 3 4 hereafter cs and amsler 1 turn the fisher hypothesis on its head by demonstrating that net nominal yields on financial assets do not respond at all to changes in the expected inflation rate rather the net real yield on these assets falls point for point with increases in the expected inflation rate

juvenile incarceration human capital and future crime evidence from randomly assigned judges over 130 000 juveniles are detained in the united states each year with 70 000 in detention on any given day yet little is known about whether such a penalty deters future crime or interrupts social and human capital formation in a way that increases the likelihood of later criminal behavior this article uses the incarceration tendency of randomly assigned judges as an instrumental variable to estimate causal effects of juvenile incarceration on high school completion and adult recidivism estimates based on over 35 000 juvenile offenders over a 10 year period from a large urban county in the united states suggest that juvenile incarceration results in substantially lower high school completion rates and higher adult incarceration rates including for violent crimes in an attempt to understand the large effects we found that incarceration for this population could be very disruptive greatly reducing the likelihood of ever returning to school and for those who do return significantly increasing the likelihood of being classified as having an emotional or behavioral disorder jel codes k140 i210

fails to deliver short selling and market quality we investigate the aggregate market quality impact of equity shares that fail to deliver hereafter ftds for a sample of 1 492 nyse stocks over a 42 month period from 2005 to 2008 greater ftds lead to higher liquidity and pricing efficiency and their impact is similar to our estimate of delivered short sales furthermore during the operative period of a security and exchange commission sec order mandating stock borrowing prior to short sales the securities affected display relatively lower liquidity and higher pricing errors finally we do not find any evidence that ftds caused price distortions or the failure of financial firms during the 2008 financial crisis

reexamining criminal behavior the importance of omitted variable bias to what extent do changes in the expected penalty alter the willingness of individuals to engage in illegal activity becker 1968 developed a theoretical model of criminal behavior that asserted offenders respond to incentives in much the same way as those who engage in legal activities respond ehrlich 1973 pioneered empirical tests of the model and concluded that there was a strong positive correlation between income inequality and property crimes that the crime rate was positively related to relative gains and negatively related to the costs associated with criminal activity and that law enforcement activity had a deterrent effect for all crimes recently many papers have used arrest rates to mea

drift and breaks in labor productivity abstract we use endogenous break tests and the stock watson tvp mub methodology to investigate changes in the equilibrium rate of growth of labor productivity in the u s the eurozone the u k australia and japan since wwii results for the u s well capture the conventional wisdom of a golden era of high productivity growth the 1950s and 1960s a marked deceleration starting from the beginning of the 1970s and a strong growth resurgence starting from mid 1990s results for the eurozone point towards a deceleration since the early 1980s with the equilibrium rate of growth of output per hour falling to 0 9 in 2004 4

exclusion and reintegration in a social dilemma using a social dilemma game we study the cooperative behavior of individuals who reintegrate their group after being excluded by their peers we manipulate the length of exclusion and whether this length is imposed exogenously or results from a vote we show that people are willing to exclude the least cooperators and they punish more and more severely chronic defections in return a longer exclusion has a higher disciplining effect on cooperation after reintegration but only when the length of exclusion is not chosen by group members its relative disciplining effect is smaller when the length of exclusion results from a vote in this environment a quicker reintegration also limits retaliation the difference in the impact of long vs short exclusion on retaliation is larger when the length of exclusion is chosen by group members than when it is exogenous post reintegration cooperation and forgiveness depend not only on the length of exclusion but also on the perceived intentions of others when they punish

us deficit sustainability revisited a multiple structural change approach in this article we re examine the long run sustainability of us budget deficits using bai and perron s multiple structural change approach while the deficit would have been weakly sustainable over the full sample 1947 1 2005 3 strong sustainability would appear only between january 1982 and february 1996

the quest for prosperity without inflation abstract in recent years activist monetary policy rules responding to inflation and the level of economic activity have been advanced as a means of achieving effective output stabilization without inflation advocates of such policies suggest that their flexibility may yield substantial stabilization benefits while avoiding the excesses of overzealous discretionary fine tuning such as is thought to characterize the experience of the 1960s and 1970s in this study i present evidence suggesting that these conclusions are misguided using an estimated model i show that when informational limitations are properly accounted for activist policies would not have averted the great inflation but instead would have resulted in worse macroeconomic performance than the actual historical experience the problem can be attributed in large part to the counterproductive reliance of these policies on the output gap the analysis suggests that the dismal economic outcomes of the great inflation may have resulted from an unfortunate pursuit of activist policies in the face of bad measurement specifically overoptimistic assessments of the output gap associated with the productivity slowdown of the late 1960s and early 1970s

the new econometrics of structural change dating breaks in u s labor productivity we have seen the emergence of three major innovations in the econometrics of structural change in the past fifteen years 1 tests for a structural break of unknown timing 2 estimation of the timing of a structural break and 3 tests to distinguish unit roots from broken time trends these three innovations have dramatically altered the face of applied time series econometrics in this paper we review these three innovations and illustrate their application through an empirical assessment of u s labor productivity in the manufacturing durables sector

sources of variation in international real interest rates this paper analyses the effects of inflation on ex post real interest rates in an international framework a dynamic factor model is estimated in which real interest rates are influenced by real interest and inflation factors that are common to all the countries and by country specific factors we find that the source of domestic inflation is an important determinant of the effect of inflation on real interest rates a common inflation factor has a negative effect on ex post real interest rates lending support to a form of the mundell tobin effect in international real interest rates and that a country specific inflation factor tends to have a positive effect

the dynamo and the computer an historical perspective on the modern productivity paradox the dynamo and the computer an historical perspective on the modern productivity paradox author s paul a david source the american economic review vol 80 no 2 papers and proceedings of the hundred and second annual meeting of the american economic association may 1990 pp 355 361 published by american economic association stable url http www jstor org stable 2006600 accessed 08 12 2010 01 40

are there rational bubbles in foreign exchange markets evidence from an alternative test abstract this paper employs the kalman filter technique to estimate and test for stochastic bubbles for exchange rates between the us dollar and the british pound the japanese yen and the deutsche mark i find no significant evidence of bubbles my results are in sharp contrast with previous findings on exchange rate bubble testing and cast some doubt on those claims that the dollar exchange rates were driven by speculative bubbles in the post bretton woods period

trend breaks long run restrictions and contractionary technology improvements abstract structural vector autoregressions with long run restrictions are extraordinarily sensitive to low frequency correlations recent literature finds that the estimated effects of technology shocks are sensitive to how one treats hours per capita however after allowing for statistically and economically significant trend breaks in productivity results are much less sensitive hours fall when technology improves the issue is that the common high low high pattern of productivity growth and hours i e the low frequency correlation inevitably leads to a positive estimated response the trend breaks control for this correlation this example suggests a practical need for care in using long run restrictions

are expectations of inflation rational or is variation of the expected real interest rate unpredictable abstract the joint hypothesis developed and tested in this paper is that the nominal interest rate is a rational expectation of the real interest rate plus the inflation rate and that variation of the expected real interest rate is unpredictable on the basis of information used in the test this test is applied to quarterly data on three month united states treasury bills of 1954 to 1973 the information used in the tests includes besides past interest rates and inflation rates past growth rates of the source base the money supply and real gnp some of the tests allow for a positive marginal tax rate which changes the results little the hypothesis is generally consistent with the data which provides support for the proposition that predictable changes of the money supply do not affect expected real interest rates over periods as short as a quarter

reasonable doubt and the optimal magnitude of fines should the penalty fit the crime models of the enforcement compliance relationship have assumed that both the probability and magnitude of fines are independent choice variables of policy makers these models indicate that it may be optimal to monitor with lowfrequency but to inflict uniformly maximal penalties for all infractions detected this article shows that if the judicial system is built on the reasonable doubt test then the penalty and the probability of conviction are not independent in particular as the penalty increases the probability of conviction falls as a result uniformly maximal penalties may actually encourage crime rather than deter it this article shows that optimal fines should rise with the severity of the infraction that is the penalty should fit the crime models of the enforcement compliance relationship generally treat both the probability and magnitude of fines as independent choice variables of the government this approach has led becker 1968 and others to conclude that it is optimal to set uniformly maximal penalties for all crimes and to set the probability of conviction at the minimum level necessary to enforce compliance with the law while this normative prescription is natural and intuitive there still remains a larger positive question of why in most nations of the world penalties are not uniformly high but rather rise with the severity of the crime one possible resolution of the positive and normative questions may lie in the fact that penalties and probabilities of conviction are not generally independent convictions are typically determined by judges or jurors who are instructed to convict only if the evidence convinces them beyond a reasonable doubt that the accused is guilty psychologists however have found that a juror s willingness to convict may be influenced by more than just the evidence jurors are very sensitive to the potential penalties that defendants may pay

estimation of unobserved expected monthly inflation using kalman filtering hamilton developed a technique for estimating financial market expectations of inflation based on the observed time series properties of interest rates and inflation the technique is based on a state space representation derived from an underlying vector autoregressive process of the expected real interest rate and the expected inflation rate on lagged expectations and lagged values of the observed treasury bill rate and the actual inflation rate this article extends this work in two ways first we use monthly data since the quarterly data used by hamilton may obscure many interesting movements especially for determining the role of inflationary expectations in stock price movements and this is one of our primary interests second we employ an alternative method developed by burmeister and wall for estimating the parameters of the model and this method leads to a different identification proof both approaches share the use of the kalman filter to estimate the unobserved variables in this case e

inflation real returns and capital investment we find evidence for the hypothesis of mundell 1963 and tobin 1965 that the expected real return component of interest rates is negatively related to the expected inflation component in the mundell tobin model the variation in expected real returns is caused by the variation in expected inflation our evidence suggests however that the variation in expected real returns is more fundamentally an outcome of the capital expenditures process equilibrium expected real returns vary directly with capital expenditures in order to induce equilibrium allocations of resources between consumption and investment this positive relation between expected real returns and real activity which comes out of the real sector combines with a negative relation between expected inflation and real activity which is traced to the monetary sector thus inducing the negative relation between expected inflation and expected real returns predicted by mundell and tobin but explained in terms of a model much different from theirs

roads to prosperity assessing the link between public capital and productivity does the positive correlation between infrastructure and productivity reflect causation if so in which direction the author finds that when growth in roads the largest component of infrastructure changes productivity growth changes disproportionately in u s industries with more vehicles that vehicle intensive industries benefit more from road building suggests that roads are productive at the margin however road investments do not appear unusually productive intuitively the interstate system was highly productive but a second one would not be road building thus explains much of the productivity slowdown through a one time unrepeatable productivity boost in the 1950s and 1960s

prison s dilemma do education and jobs programmes affect recidivism this paper employs a hazard model to analyse the impact of education and two types of prison employment programmes on recidivism over a ten year period for 4515 prisoners released from ohio prisons in 1992 estimations with a weibull mixture model and propensity score approach provide two means for investigating self selection bias selection bias is detected for participation in the most common prison job programme but has little effect on estimated marginal savings impacts of prison industry and education programmes estimates of the cost savings from postponing return to prison due to programme participation are provided the potential for cost savings through decreasing or delaying return to prison is an important finding given the substantial and increasing cost of incarceration

understanding the fisher equation it is argued that univariate long memory estimates based on ex post data tend to underestimate the persistence of ex ante variables and hence that of the ex post variables themselves because of the presence of unanticipated shocks whose short run volatility masks the degree of long range dependence in the data empirical estimates of long range dependence in the fisher equation are shown to manifest this problem and lead to an apparent imbalance in the memory characteristics of the variables in the fisher equation evidence in support of this typical underestimation is provided by results obtained with inflation forecast survey data and by direct calculation of the finite sample biases to address the problem of bias the paper introduces a bivariate exact whittle bew estimator that explicitly allows for the presence of short memory noise in the data the new procedure enhances the empirical capacity to separate low frequency behaviour from high frequency fluctuations and it produces estimates of long range dependence that are much less biased when there is noise contaminated data empirical estimates from the bew method suggest that the three fisher variables are integrated of the same order with memory parameter in the range 0 75 1 since the integration orders are balanced the ex ante real rate has the same degree of persistence as expected inflation thereby furnishing evidence against the existence of a fractional cointegrating relation among the fisher variables and correspondingly showing little support for a long run form of fisher hypothesis copyright 2004 john wiley sons ltd

reforming imf conditionality as it has for many years international monetary fund conditionality is currently receiving much attention in the context of the global financial crisis at the beginning of the 2000s the fund introduced a policy of streamlining intended to reduce the amount of conditionality and refocus it with a view to increasing country ownership and improving programme implementation this article uses the results of a report by the imf s independent evaluation office into structural conditionality to assess the extent to which the initiative delivered on its promises more significant seem to be the recent changes associated with the global crisis the article discusses the evolution of conditionality and assesses the current situation and the prospects for the future

rational expectations econometric analysis of changes in regime an investigation of the term structure of interest rates abstract this paper is of interest both for its methodological contribution of new tools for analyzing rational expectations models and for its substantive conclusions concerning the term structure of interest rates during the monetary experiment of october 1979 the paper studies systems subject to changes in regime interpreted here as occasional discrete shifts in the parameters governing the time series behavior of exogenous economic variables the specification is shown to be quite tractable both theoretically and empirically the technique is used to analyze yields on three month treasury bills and ten year treasury bonds during 1962 to 1987 a constant parameter linear model for short term rates is shown to be inconsistent both with the univariate time series properties of short rates and with the observed bivariate relation between long and short rates under the expectations hypothesis of the term structure an alternative nonlinear model that admits the possibility of changes in regime affords a much better description of the univariate process for short rates moreover the cross equation restrictions implied by the expectations hypothesis of the term structure are consistent with the nonlinear specification indeed the residuals of the restricted relation have a standard error of only 0 8 basis points this is a third less than that of a completely unrestricted linear regression of long rates on short rates and compares with an unconditional standard deviation of long rates of 142 basis points i conclude that once the recognition by bond traders of changes in regime is taken into account the expectations hypothesis of the term structure of interest rates holds up fairly well for these data

international evidence on time variation in trend labor productivity growth this paper provides international evidence on time variation in trend productivity growth based on the dataset for hours worked constructed by ohanian raffo 2012 applying both the endogenous break tests of bai perron 1998 2003 and the stock watson 1996 1998 tvp mub methodology substantial evidence of time variation in trend productivity growth is detected for most countries for either japan or countries belonging to the eurozone evidence points towards a significant growth decline over the last several decades weaker evidence is reported for the united states for which the 1990 s productivity acceleration is estimated to have been overall mild and of a temporary nature

criminal deterrence in the reduced form a new perspective on ehrlich s seminal study i introduction perhaps the best known and most influential econometric analysis of the deterrent effect of criminal penalties is isaac ehrlich s 1973 participation in illegitimate activities a theoretical and empirical analysis he reported large and significant marginal deterrent effects of penalties for a wide range of crimes ehrlich s work was heavily criticized on methodological grounds and many subsequent studies have contradicted his results while still others have not 1 nonetheless ehrlich s work remains an important hallmark in the study of criminal deterrence this note is motivated by recent research that indicates that penalties may have indirect consequences that could reduce their deterrent effect higher penalties could for instance encourage a criminal to spend more effort avoiding detection and prosecution malik 1990 and snyder 1990 for instance as lott 1987 1992 shows higher penalties may increase the amount of money criminals spend on legal defense 2 this means that higher penalties could reduce the probability of apprehension and conviction in addition a feature of the legal system may generate another way for higher penalties to reduce the probability of punishment this feature is that judges and juries must apply the reasonable doubt test to their decision to convict a defendant assume that jurors establish the level of doubt which is reasonable by finding the threshold that will minimize expected social losses if juries like criminals have a forecast of likely penalties then as the expected penalty rises the cost of an incorrect conviction also rises this means the juror s threshold level of reasonable doubt will rise as well the effect is to reduce the probability that a given defendant will be convicted andreoni 1991 if either the avoidance or the reasonable doubt effect is significant then this will mitigate the direct deterrent effect of penalties on crime rates reexamining ehrlich s work we see that his prime objective was to identify a single equation in a three equation simultaneous equations system that being the equation predicting crime rates he found significant negative coefficients on penalties which he took as evidence for his theoretical model of criminal behavior in which criminals could be deterred by higher penalties if more recent theories are correct in claiming that higher penalties may also decrease the chance of conviction then ehrlich s estimation of the single equation will not tell a complete story in particular we must estimate a reduced form model which will capture both the direct and indirect effects of penalties on crime rates this paper will address these questions using ehrlich s original data replicating ehrlich s regressions we find strong direct deterrent effects of penalties however we also find that increased penalties have a significant negative affect on the probability of conviction as predicted by the theoretical studies we combine these effects by examining the reduced form equations for both crime rates and probabilities of conviction we find that the total effect of penalties on crime rates is approximately zero for all twelve crime categories considered but that the effects of penalties on probabilities of conviction remain negative and significant in the reduced form equations this note allows for two general conclusions first we provide some evidence for theoretical models that predict that penalties may reduce the probability that criminals will be convicted second and more importantly despite one s views on the many widely discussed methodological issues surrounding ehrlich s seminal work when generalized to account for possibilities that higher penalties may reduce the probability of conviction his data generate much different policy implications than those widely adopted at the time of his paper s publication ii specification this section discusses the specification of the structural equations for ehrlich s original study

the effect of welfare programs on criminal behavior a theoretical and empirical analysis a simple economic model of criminal behavior shows that welfare payments will reduce the time allocated to illegal activities under risk aversion and other reasonable assumptions this theoretical prediction is confirmed by the empirical findings using a set of cross sectional u s state data for 1987 it is found that cash or in kind welfare programs have a negative and often significant effect on property crime more general programs such as public housing seem to have a larger effect than those aimed primarily at women afdc medicaid and school lunch programs apparently have little effect on property crime

does the new economy measure up to the great inventions of the past abstract during the four years 1995 99 u s productivity growth experienced a strong revival and achieved growth rates exceeding that of the golden age of 1913 72 accordingly many observers have declared the new economy to be an industrial revolution even more important than the second industrial revolution of 1860 1900 which made the golden age of productivity growth possible this paper dissects the recent productivity revival subtracts out a cyclical component and concludes that there is no revival of the productivity growth trend in the 88 percent of the private economy lying outside of the durables manufacturing sector the paper explains this surprising finding by pointing to limitations in computers and the internet in comparison with the great inventions of the past

vancouver s gasoline price wars an empirical exercise in uncovering supergame strategies this paper uses a unique data set to determine which dynamic model of tacit collusion best describes behaviour in a particular industry the area investigated is a region of the vancouver british columbia retail gasoline market players are service station managers who compete daily firms choose price in each period using strategies that depend on prices chosen in the previous period periodically unanticipated demand shocks precipitate price wars when shocks occur the firms in the market must determine the new demand conditions and adjust their strategies from an econometric point of view slopes of intertemporal reaction functions are latent variables the resulting system of equations with time varying parameters is estimated via the kalman filter different repeated game oligopoly models correspond to different transition matrices for the latent variables the models can thus be assessed in terms of their power to explain firm behaviour in this market

analysing the effects of labour standards on us export performance a time series approach with structural change the empirical effects of different measures of labour standards on the export performance of the united states are analysed using annual data for the period 1950 1998 applying a time series approach based on the structural change literature hence a model with endogenous breaks is estimated following the methodology proposed by bai and perron econometrica 66 47 78 1998 the results show that the labour standards represented by the number of hours worked the rate of occupational injuries and the unionization rate are all very important to explain the behaviour of exports for the united states in particular it is found that low labour standards may both improve or lead to a deterioration in export performance

cost of capital to the hospital sector this paper provides estimates of the cost of equity and debt capital to for profit and non profit hospitals in the u s for the years 1972 83 the cost of equity is estimated using alternatively the capital asset pricing model and arbitrage pricing theory we find that the cost of equity capital using either model substantially exceeded anticipated inflation the cost of debt capital was much lower accounting for the corporate tax shield on debt and capital paybacks by cost based insurers lowered the net cost of capital to hospitals

uncovering financial markets beliefs about inflation targets this paper exploits the term structure of interest rates to develop testable economic restrictions on the joint process of long term interest rates and inflation when the latter is subject to a targeting policy by the central bank in an empirical application to the canadian inflation target zone results indicate that financial markets perceive the band to be of approximately the same width as announced but asymmetrically distributed around the official target this finding suggests that in practice the monetary authority might attach different weights to positive and negative inflation deviations from the target copyright 2000 john wiley sons ltd

if homo economicus could choose his own utility function would he want one with a conscience reply in my model of the evolution of honesty 1 i assumed the existence of a signal a blush perhaps extreme values of which served to identify some individuals as being honest with certainty joseph harrington notes that without this assumption honest individuals have difficulty invading a population initially dominated by defectors for readers who do not wish to work through the algebra in his comment the argument is easily summarized in nontechnical terms suppose two honest mutants a and b arrive in an uncountably large population consisting entirely of dishonest persons and suppose that the probability that an honest person exhibits an intense blush is say 0 999 while the corresponding probability for everyone else is only 0 001 when a sees an intense blush on the face of b what will then be his estimate of the probability that b is honest assuming that a knows the laws of elementary probability and corrects for the base rate of honest persons in the population it will be zero when virtually everyone in the population is dishonest even a person with an intense blush will be pegged as dishonest provided that even the smallest fraction of dishonest persons also shows an intense blush with

real interest rates and inflation an ex ante empirical analysis we develop a method of measuring ex ante real interest rates using prices of index and nominal bonds employing this method and newly available data we directly test the fisher hypothesis that the real rate of interest is independent of inflation expectations we find a negative correlation between ex ante real interest rates and expected inflation this contradicts the fisher hypothesis but is consistent with the theories of mundell and tobin darby and feldstein and stulz we also find that nominal interest rates include an inflation risk premium that is positively related to a proxy for inflation uncertainty

an examination of the relationship between australian industry equity returns and expected inflation this paper analyses the relationship between inflation and equity returns in australia over the period january 1974 to march 1996 analysis is based on monthly and quarterly data using value weighted equity indices at both the aggregate market and industry level three price indices the consumer price index cpi quarterly and the manufactured materials used index mmu and the manufacturing articles produced index map both monthly and quarterly are used to measure inflation results provide little evidence of the statistically significant negative relationship observed in the us for the full study period analysis is also conducted on three subperiods monetary targeting july 1976 january 1985 checklist approach february 1985 december 1989 and anti inflation january 1990 march 1996 at the market level the anti inflation subperiod does provide some evidence of a negative relationship between inflation and equity returns though statistical significance is not apparent with quarterly tim

should the wealthy be able to buy justice this paper shows that allowing wealthy individuals to influence the outcome of their trials through the purchase of legal services can be consistent with the optimal penalty literature using this analysis the author reviews some of the advantages and disadvantages of varying the length of jail terms versus varying the probability of conviction finally implications for the bail prosecutorial and plea bargaining systems are examined copyright 1987 by university of chicago press

recent trends and structural breaks in us and eu15 labour productivity growth this article examines shifts in labour productivity growth in the us and in europe between 1970 and 2007 based on econometric tests of structural breaks additionally it makes use of time series based projections of labour productivity growth up to 2009 in order to detect breaks depending on confidence intervals of the projections the identification of structural breaks in the us labour productivity growth is far from obvious a statistically significant break is found in the late 1990s only if at least the 97 5th percentile of forecasts materializes in the future which means that despite a clear pick up in productivity growth in the second half of the 1990s the size of the hump is not large enough compared with past variations to make this change a statistically significant break however a significant break point is detected in the mid 1990s for the difference in labour productivity growth between the us and the eu15 even when controlling for the convergence of europe towards the us productivity l

on criminals risk attitudes abstract if criminals are expected utility maximizers and more sensitive to changes in the certainty than the severity of punishment they must be risk preferrers we show that risk aversion is not ruled out if the expected utility hypothesis is weakened 1997 elsevier science s a

do we punish high income criminals too heavily many critics believe that since high income criminals can afford to purchase better legal services they are less severely punished than poor criminals who commit equivalent crimes others are concerned that the penalties imposed on criminals are too small this paper shows that ignoring the effect conviction has on later earnings dramatically underestimates the total monetary penalty paid by those convicted and that the penalty structure is extremely progressive where evidence on the probability of conviction is available it shows that the highest income criminals face the highest expected penalties

are fines and prison terms used efficiently evidence on federal fraud offenders optimal penalty theory predicts that because imprisonment is costly and fines are costless fines will be used to the maximum extent possible before they are supplemented with imprisonment if criminal procedure functions as a market system as some observers have suggested then optimizing models of sanctions may be viewed as positive and not just normative descriptions of criminal sentencing this article examines the use of fines and prison terms to punish federal fraud offenders we find that prison terms depend strongly and positively on harms while fines depend strongly and positively on ability to pay in addition individuals punished with higher fines receive shorter prison terms a finding that supports efficient punishment over some of its alternatives these results demonstrate optimizing tendencies in sentencing even if not optimality itself