policy relevant treatment effects accounting for individual level heterogeneity in the response to treatment is a major development in the econometric literature on program evaluation a substantial body of empirical evidence demonstrates that econometric models fit on individual level data manifest heterogeneity in treatment effects that is present even after conditioning on observables an important distinction is the one between evaluation models where participation in the program being evaluated is based at least in part on unobserved idiosyncratic responses to treatment and models where participation is not based on unobserved idiosyncratic responses this is the distinction between selection on unobservables and selection on observables the validity of entire classes of evaluation estimators hinges on whether or not they allow agents to act on unobserved idiosyncratic responses in a wide variety of applications the available evidence suggests that not only are ex post postenrollment responses heterogeneous but that ex ante decisions to participate in programs are based in part on these heterogeneous responses heckman and vytlacil 2000b 2001

equity valuation using multiples we examine the valuation performance of a comprehensive list of value drivers and find that multiples derived from forward earnings explain stock prices remarkably well pricing errors are within 15 percent of stock prices for about half our sample in terms of relative performance the following general rankings are observed consistently each year forward earnings measures are followed by historical earnings measures cash flow measures and book value of equity are tied for third and sales performs the worst curiously performance declines when we consider more complex measures of intrinsic value based on short cut residual income models contrary to the popular view that different industries have different best multiples these overall rankings are observed consistently for almost all industries examined since we require analysts earnings and growth forecasts and positive values for all measures our results may not be representative of the many firm years excluded from our sample

combining value estimates to increase accuracy the estimates provided by discounted cash flow the method of comparables and market prices usually disagree combining two or more of these value estimates makes sense because every bona fide estimate provides information and because relying on one estimate ignores the information content of the others how then should financial analysts combine different value estimates to form a more accurate estimate than that provided by any one method drawing from bayesian decision theory the delaware block method and forecasting research this article suggests five rules of thumb for combining two or more value estimates into a superior value estimate

on measures of excess burden and their application abstract new measures of the additional excess burden of a tax reform are proposed and are shown to be useful in three key policy applications these new measures induce a unique measure of marginal excess burden meb among its interesting properties meb is uniformly zero for a proportional tax on inelastically supplied labor problems in applying the standard measures of total excess burden are demonstrated it is concluded that the induced measure of the marginal cost of funds mcf should be regarded as the most useful concept in applied tax analysis

teacher quality in educational production tracking decay and student achievement growing concerns over the inadequate achievement of u s students have led to proposals to reward good teachers and penalize or fire bad ones the leading method for assessing teacher quality is value added modeling vam which decomposes students test scores into components attributed to student heterogeneity and to teacher quality implicit in the vam approach are strong assumptions about the nature of the educational production function and the assignment of students to classrooms in this paper i develop falsification tests for three widely used vam specifications based on the idea that future teachers cannot influence students past achievement in da ta from north carolina each of the vams exclusion restrictions are dramatically viola ted in particular these models indicate large effects of 5th grade teachers on 4th grade t est score gains i also find that conventional measures of individual teachers value added fade out very quickly and are at best weakly related to long run effects i discuss implic ations for the use of vams as personnel tools

head start and the distribution of long term education and labor market outcomes we investigate the effect of head start on education and wage income for individuals in their 30s in the nlsy79 we contribute to the existing literature by examining effects across outcome distrib

measuring the impacts of teachers i evaluating bias in teacher value added estimates are teachers impacts on students test scores value added a good measure of their quality one reason this question has sparked debate is disagreement about whether value added va measures provide unbiased estimates of teachers causal impacts on student achievement we test for bias in va using previously unobserved parent characteristics and a quasi experimental design based on changes in teaching sta using school district and tax records for more than one million children we nd that va models which control for a student s prior test scores exhibit little bias in forecasting teachers impacts on student achievement although teachers have substantial impacts

analysts and information gaps lessons from the ual buyout in addition to earnings forecasts and stock recommendations analysts provide potentially useful information to investors in the form of written commentary and analysis but how such fundamental research affects stock prices has been little studied i investigate the role analysts research played in the 1994 restructuring of ual corporation parent of united air lines in which employees acquired 55 percent of ual stock in exchange for 4 9 billion in wage benefit concessions focusing on the critical first two years of the buyout my analysis suggests that analysts and investors on average initially gave the company little credit for the concessions the transaction was controversial and complicated most analysts were negative or indifferent in their assessment of the deal some analysts also misinterpreted key terms of the deal ual managers responded by reporting an unconventional earnings measure that highlighted the financial concessions ual s stock price relative to the market and industry eve

privatization in developing countries a review of the issues abstract the theory and early experience of privatization in developing countries are reviewed privatization has been spurred by widespread dissatisfaction with the performance of public enterprises and the need to cut government expenditures unless it is accompanied by liberalization measures privatization of public enterprises is unlikely to result in significant gains in economic efficiency the sequencing of privatization and liberalization reforms will often determine their impact on efficiency but the correct order of implementation is not clear political opposition to privatization is likely to be limited to the state bureaucracy which will often be able to mobilize in order to limit the impact of reforms early implementation experiences suggest technical difficulties are as constraining as political factors

measuring the impacts of teachers ii teacher value added and student outcomes in adulthood abstract are teachers impacts on students test scores value added a good measure of their quality this question has sparked debate partly because of a lack of evidence on whether high value ad

the distributional impact of public services when needs differ this is the accepted version of a work that was accepted for publication in journal of public economics changes resulting from the publishing process such as peer review editing corrections structural formatting and other quality control mechanisms may not be reflected in this document changes may have been made to this work since it was submitted for publication a definitive version was subsequently published in journal of public economics 94 9 10 549 562 october 2010

understanding the mechanisms through which an influential early childhood program boosted adult outcomes a growing literature establishes that high quality early childhood interventions targeted toward disadvantaged children have substantial impacts on later life outcomes little is known about the mechanisms producing these impacts this paper uses longitudinal data on cognitive and personality traits from an experimental evaluation of the influential perry preschool program to analyze the channels through which the program boosted both male and female participant outcomes experimentally induced changes in personality traits explain a sizable portion of adult treatment effects

growth and value hybrid valuation model based on mean reversion abstractthis article proposes a novel valuation model growth and value hybrid model to estimate the stock price this proposed model combines the essence of the asset based approach the income based approach and the principle of mean reversion to develop the theoretical closed form formula consisting of three coefficients value coefficient value support coefficient and growth coefficient regression analysis is employed to fit market data to determine these coefficients moreover this study proposes the double sorting method to build the quantile regression models of the formula to estimate the stock price at a specific quantile the results show that the predictive capability of the hybrid valuation model is superior to the model without using value support coefficient which supports the assumption that the pbr is not associated with the roe when the roe is less than a threshold in different time periods of the stock market no significant difference exists on the value support coefficient howe

does early child care affect children s development we study how early child care ecc affects children s development in a marginal treatment effect framework that allows for rich forms of observed and unobserved effect heterogeneity exploiting a reform in germany that induced school districts to expand ecc at different points in time we find strong but diverging effects on children s motor and socio emotional skills children who were most likely to attend ecc benefit in terms of their motor skill development children who were least likely to attend ecc gain in terms of their socio emotional skill development especially boys and children from disadvantaged families such as those with low education or migration backgrounds simulating expansions of ecc we find that a moderate expansion fosters motor skills for all children and language skills for boys and immigrant children a progressive expansion of ecc improves all children s socio emotional development but neither their motor skills nor their language skills

valuation of bankrupt firms this study compares the market value of firms that reorganize in bankruptcy with estimates of value based on management s published cash flow projections we estimate firm values using models that have been shown in other contexts to generate relatively precise estimates of value we find that these methods generally yield unbiased estimates of value but the dispersion of valuation errors is very widethe sample ratio of estimated value to market value varies from less than 20 to greater than 250 cross sectional analysis indicates that the variation in these errors is related to empirical proxies for claimholders incentives to overstate or understate the firm s value

does hometown advantage matter the case of institutional blockholder monitoring on earnings management in korea this study uses a large sample of korean firms to examine institutional blockholders influence on corporate earnings management the korean market is an interesting setting to study institutional monitoring because it is dominated by chaebols which are characterized by ineffective internal governance mechanisms we find evidence that institutional blockholders deter opportunistic financial reporting and such activities are the most evident among domestic institutional blockholders foreign institutional blockholders especially those with short term investment objectives lead to more discretionary reporting our findings are robust to various empirical models and endogeneity checks moreover this study offers new insight into the proximity advantage of domestic institutional investors with regard to monitoring information it also highlights institutional investors roles in shaping corporate governance in emerging markets in which sound corporate governance has become increasingly important for firms long term sustainability one important policy implication is that regulatory authorities should aim to promote institutional investors participation in these markets

longer term effects of head start specially collected data on adults in the panel study of income dynamics are used to provide evidence on the longer term effects of head start an early intervention program for poor preschool age children whites who attended head start are relative to their siblings who did not significantly more likely to complete high school attend college and possibly have higher earnings in their early twenties african americans who participated in head start are less likely to have been booked or charged with a crime there is some evidence of positive spillovers from older head start children to their younger siblings language en

trends in intergenerational income mobility previous studies of recent u s trends in intergenerational income mobility have produced widely varying results partly because of large sampling errors by making more efficient use of the available information in the panel study of income dynamics we generate more reliable estimates of the recent time series variation in intergenerational mobility our results which pertain to the cohorts born between 1952 and 1975 do not reveal major changes in intergenerational mobility

good jobs versus bad jobs this article develops a model of noncompetitive labor markets in which high wage good and low wage bad jobs coexist minimum wages and unemployment benefits shift the composition of employment toward high wage jobs because the composition of jobs in the laissez faire equilibrium is inefficiently biased toward low wage jobs these labor market regulations increase average labor productivity and may improve welfare

optimal capital structure and bankruptcy choice dynamic bargaining versus liquidation abstract we model a firm s optimal capital structure decision in a framework in which it may later choose to enter either chapter 11 reorganization or chapter 7 liquidation creditors anticipate equityholders ex post reorganization incentives and price them into the ex ante credit spreads using a realistic dynamic bargaining model of reorganization we show that the off equilibrium threat of costly renegotiation can lead to lower leverage even with liquidation in equilibrium if reorganization is less efficient than liquidation the added option of reorganization can actually make equityholders worse off ex ante even when they liquidate on the equilibrium path

field of study earnings and self selection why do individuals choose different types of post secondary education and what are the labor market consequences of those choices we show that answering these questions is difficult because individuals choose between several unordered alternatives even with a valid instrument for every type of education instrumental variables estimation of the payoffs require information about individuals ranking of education types or strong additional assumptions like constant effects or restrictive preferences these identification results motivate and guide our empirical analysis of the choice of and payoff to field of study our context is norway s post secondary education system where a centralized admission process covers almost all universities and colleges this process creates credible instruments from discontinuities which effectively randomize applicants near unpredictable admission cutoffs into different fields of study at the same time it provides us with strategy proof measures of individuals ranking of fields taken together this allows us to estimate the payoffs to different fields while correcting for selection bias and keeping the next best alternatives as measured at the time of application fixed we find that different fields have widely different payoffs even after accounting for institutional differences and quality of peer groups for many fields the payoffs rival the college wage premiums suggesting the choice of field is potentially as important as the decision to enroll in college the estimated payoffs are consistent with individuals choosing fields in which they have comparative advantage we also test and reject assumptions of constant effects or restrictive preferences suggesting that information on next best alternatives is essential to identify payoffs to field of study

evaluating education programs that have lotteried admission and selective attrition we study the effectiveness of magnet programs in an urban district that ration excess demand by admission lotteries differential attrition arises since students who lose the lottery are more likely to pursue options outside the school district than students who win the lottery when students leave the district important outcome variables are often not observed the treatment effects are not point identified we exploit known quantiles of the outcome distribution to construct informative bounds on treatment effects we find that magnet programs improve behavioral outcomes but have no significant effect on achievement

risk returns and values in the presence of differential taxation abstract we show that there exist separate security market lines smls for debt and equity securities in an equilibrium with differential taxation of debt and equity we characterize the conditions under which these smls have the same price of risk with different intercepts and the conditions under which the tax effect of leverage is linear in debt value as in the adjusted present value method we explore the implications of our results for cost of capital calculations how to calculate the cost of capital for debt and equity and how to unlever betas correctly accounting for differential taxation

is oil supply choked by financial market pressures abstract since the late 1990s financial analysts have focused strongly on short term profitability for benchmarking and valuation of international oil and gas companies the increasing pressure for strict capital discipline among oil and gas companies may have reduced their willingness to invest for future reserves and production growth the current high oil price is partly due to low exploration activity in the oil industry the last decade we present and discuss the background for this development based on previous academic research industry trends and current valuation practices an estimated econometric model of stock market valuation among oil and gas companies suggests that analysts and companies have put exaggerate weight on short term earnings and accounting profitability we therefore expect that the attention will shift back to long term reserve and production growth

who is my peer a valuation based approach to the selection of comparable firms this study presents a general approach for selecting comparable firms in market based research and equity valuation guided by valuation theory we develop a warranted multiple for each firm and identify peer firms as those having the closest warranted multiple we test this approach by examining the efficacy of the selected comparable firms in predicting future one to three year ahead enterprise value to sales and price to book ratios our tests encompass the general universe of stocks as well as a sub population of so called new economy stocks we conclude that comparable firms selected in this manner offer sharp improvements over comparable firms selected on the basis of other techniques

valuing and pricing ipos abstract this paper investigates how underwriters set the ipo firm s fair value an ex ante estimate of the market value using a unique dataset of 228 reports from french underwriters these reports are issued before the ipo shares start trading on the stock market and detail how underwriters determined fair value we document that underwriters often employ multiples valuation dividend discount models and discounted cash flow dcf analysis to determine fair value but that all of these valuation methods suffer from a positive bias with respect to equilibrium market value we also analyze how this fair value estimate is subsequently used as a basis for ipo pricing we report that underwriters deliberately discount the fair value estimate when setting the preliminary offer price part of the intentional price discount can be recovered by higher price updates we find that controlling for other factors such as investor demand part of underpricing stems from this intentional price discount

the effect of the set of comparable firms on the accuracy of the price earnings valuation method the price earnings pie valuation method estimates a firm s stock price as the product of its earnings and the pie multiple determined from a set of comparable firms this paper studies empirically the accuracy of the pie valuation method when comparable firms are selected on the basis of industry risk and earnings growth the effect of adjusting earnings for cross sectional differences in leverage is also examined

does education improve citizenship evidence from the united states and the united kingdom abstract many studies document an association between schooling and civic participation but none credibly investigate causal links we explore the effect of extra schooling induced through compulsory schooling laws on the likelihood of becoming politically involved in the united states and the united kingdom we find that educational attainment is related to several measures of political interest and involvement in both countries we find a strong and robust relationship between education and voting for the united states but not for the united kingdom our us results approach the uk findings when conditioning on registration possibly indicating that registration rules present a barrier to participation

is cash flow king in valuations contrary to the common perception that operating cash flows are better than accounting earnings at explaining equity valuations recent studies suggest that valuations derived from industry multiples based on reported earnings are closer to traded prices than those based on reported operating cash flows the question addressed in the article is whether the balance tilts in favor of cash flows when the following are considered 1 forecasts rather than reported numbers 2 dividends rather than operating cash flows 3 individual industries rather than all industries combined and 4 companies in non u s markets in all cases studied earnings dominated operating cash flows and dividends ndustry multiples are used often in practice both to provide stand alone quick and dirty valuations and to anchor more complex discounted cash flow valuations to obtain a company valuation one simply multiplies a value driver such as earnings for the company by the corresponding multiple which is based on the ratio of stock price to that value driver for a group of comparable companies choices for value drivers include various measures of cash flow book value earnings and revenues but earnings and cash flows are by far the most commonly used in the study reported here we compared the valuation performance of earnings multiples with the performance of multiples based on two measures of cash flow operating cash flow and dividends for a large sample of companies drawn from 10 national markets valuation performance in our study does not refer to picking mispriced stocks 1 we focused

default effect versus active decision evidence from a field experiment in los alamos abstract we examine how consumers respond to distinct combinations of preset defaults and subsequent economic incentives a randomised controlled trial is implemented to investigate the demand reduction performance of two electricity pricing programmes opt in and opt out critical peak pricing both the intention to treat and the treatment on the treated are more pronounced for customers assigned to the opt in group and the opt in treatment effects are relatively more persistent over repeated interventions this result suggests that the opt in type active enrolment itself had an impact on customers subsequent behaviour and made them more responsive to the treatment interventions moreover only the opt in treatment has significant effects beyond the treatment time window our results therefore highlight the important difference between an active and a passive decision making process we also estimate a marginal treatment effect model to inform the external validity of our experiment

children s schooling and parents behavior evidence from the head start impact study abstract parents may have important effects on their children but little work in economics explores whether children s schooling opportunities crowd out or encourage parents investment in children we analyze data from the head start impact study which granted randomly chosen preschool aged children the opportunity to attend head start we find that head start causes a substantial increase in parents involvement with their children such as time spent reading to children math activities or days spent with children by fathers who do not live with their children both during and after the period when their children are potentially enrolled in head start

the information content of losses abstract this study hypothesizes that because shareholders have a liquidation option losses are not expected to perpetuate they are thus less informative than profits about the firm s future prospects the results are consistent with the hypothesis they also show that the documented increase in the earnings response coefficent as the cumulation period increases appears to be due exclusively to the effect of losses the liquidation option effect extends to profitable cases where earnings are low enough to make the option attractive alternating explanations for the low informativeness of losses such as mean reversal of earnings are not supported by the tests

the rate of return to the high scope perry preschool program abstract this paper estimates the rate of return to the highscope perry preschool program an early intervention program targeted toward disadvantaged african american youth estimates of the rate of return to the perry program are widely cited to support the claim of substantial economic benefits from preschool education programs previous studies of the rate of return to this program ignore the compromises that occurred in the randomization protocol they do not report standard errors the rates of return estimated in this paper account for these factors we conduct an extensive analysis of sensitivity to alternative plausible assumptions estimated annual social rates of return generally fall between 7 and 10 with most estimates substantially lower than those previously reported in the literature however returns are generally statistically significantly different from zero for both males and females and are above the historical return on equity estimated benefit to cost ratios support this conclusion

consequences of the clean water act and the demand for water quality since the 1972 u s clean water act government and industry have invested over 1 trillion to abate water pollution or 100 per person year over half of u s stream and river miles however still violate pollution standards we use the most comprehensive set of files ever compiled on water pollution and its determinants including 50 million pollution readings from 240 000 monitoring sites and a network model of all u s rivers to study water pollution s trends causes and welfare consequences we have three main findings first water pollution concentrations have fallen substantially between 1972 and 2001 for example the share of waters safe for fishing grew by 12 percentage points second the clean water act s grants to municipal wastewater treatment plants which account for 650 billion in expenditure caused some of these declines through these grants it cost around 1 5 million 2014 dollars to make one river mile fishable for a year we find little displacement of municipal expenditure due to a federal grant third the grants estimated effects on housing values are smaller than the grants costs we carefully discuss welfare implications

the equity performance of firms emerging from bankruptcy this study assesses the stock return performance of 131 firms emerging from chapter 11 using differing estimates of expected returns we consistently find evidence of large positive excess returns in 200 days of returns following emergence we also examine the reaction of our sample firms equity returns to their earnings announcements after emergence from chapter 11 the positive and significant reactions suggest that our results are driven by the market s expectational errors not mismeasurement of risk the results provide an interesting contrast but not a contradiction to previous work that has documented poor operating performance for firms emerging from chapter 11 with large corporate bankruptcies being commonplace during the late 1980s and early 1990s there has been a notable increase in the number of firms emerging from bankruptcy altman 1991 1993 when firms emerge from bankruptcy they often cancel the old stock and distribute an entirely new issue of common stock the stocks of firms emerging from a chapter 11 bankruptcy are often called orphan equities among practitioners and there have been reports in the popular press about spectacular returns in this market for example as sandler 1991 p cl states

conflicts in bankruptcy and the sequence of debt issues this paper investigates the optimal sequencing of debt issues our theoretical model suggests that once firms issue debt with one level of seniority they may have an incentive to alternate seniorities because of violations of the priced absolute priority rule apr when we introduce explicit costs of class conflict the model yields cases of alternating seniorities and other cases in which firms issue only one class of debt the implications of the model are consistent with the observed regularities in a large database of debt issues we test several other implications of our model as well

privatizing agriculture policy options in developing countries abstract this paper examines the background to and options for privatization of state owned enterprises in the agricultural sector in developing countries it identifies areas of the sector where privatization is feasible and those likely to remain under government control it is concluded that while there is some scope for privatization it is unlikely to be as extensive as in other sectors since much of the production is already in private hands there is limited capacity to pay for services and the capability of the private sector is currently low

the effects of housing assistance on labor supply evidence from a voucher lottery this study estimates the effects of means tested housing programs on labor supply using data from a randomized housing voucher wait list lottery in chicago economic theory is ambiguous about the expected sign of any labor supply response we find that among working age able bodied adults housing voucher use reduces labor force participation by around 4 percentage points 6 percent and quarterly earnings by 329 10 percent and increases temporary assistance for needy families program participation by around 2 percentage points 15 percent we find no evidence that the housing specific mechanisms hypothesized to promote work such as neighborhood quality or residential stability are important empirically jel i38 j22 r23 r38

how do mergers create value a comparison of taxes market power and efficiency improvements as explanations for synergies there is little evidence in the literature on the relative importance of the underlying sources of merger gains prior literature suggests that synergies could arise due to taxes market power or efficiency improvements based on value line forecasts we estimate the average synergy gains in a broad sample of 264 large mergers to be 10 03 of the combined equity value of the merging firms the detailed data in value line projections allow for the decomposition of these gains into underlying operating and financial synergies we estimate that tax savings contribute only 1 64 in additional value while operating synergies account for the remaining 8 38 operating synergies are higher in focused mergers while tax savings constitute a large fraction of the gains in diversifying mergers the operating synergies are generated primarily by cutbacks in investment expenditures rather than by increased operating profits overall the evidence suggests that mergers generate gains by improving resource allocation rather than by reducing tax payments or increasing the market power of the combined firm

the elasticity of taxable income with respect to marginal tax rates a critical review this paper critically surveys the large and growing literature estimating the elasticity of taxable income with respect to marginal tax rates using tax return data first we provide a theoretical framework showing under what assumptions this elasticity can be used as a sufficient statistic for efficiency and optimal tax analysis we discuss what other parameters should be estimated when the elasticity is not a sufficient statistic second we discuss conceptually the key issues that arise in the empirical estimation of the elasticity of taxable income using the example of the 1993 top individual income tax rate increase in the united states to illustrate those issues third we provide a critical discussion of selected empirical analyses of the elasticity of taxable income in light of the theoretical and empirical framework we laid out finally we discuss avenues for future research jel h24 h31 j22

experimental estimates of education production functions this paper analyzes data on 11 600 students and their teachers who were randomly assigned to different size classes from kindergarten through third grade statistical methods are used to adjust for nonrandom attrition and transitions between classes the main conclusions are 1 on average performance on standardized tests increases by four percentile points the first year students attend small classes 2 the test score advantage of students in small classes expands by about one percentile point per year in subsequent years 3 teacher aides and measured teacher characteristics have little effect 4 class size has a larger effect for minority students and those on free lunch 5 hawthorne effects were unlikely

estimating outcome distributions for compliers in instrumental variables models in imbens and ingrist 1994 angrist imbens and rubin 1996 and imbens and rubin 1997 assumptions have been outlined under which instrumental variables estimands can be given a causal interpretation as a local average treatment effect without requiring functional form or constant treatment effect assumptions we extend these results by showing that under these assumptions one can estimate more from the data than the average causal effect for the subpopulation of compliers one can in principle estimate the entire marginal distribution of the outcome under different treatments for this subpopulation these distributions might be useful for a policy maker who wishes to take into account not only differences in average of earnings when contemplating the merits of one job training programme vs another we also show that the standard instrumental variables estimator implicitly estimates these underlying outcome distributions without imposing the required nonnegativity on these implicit density estimates and that imposing non negativity can substantially alter the estimates of the local average treatment effect we illustrate these points by presenting an analysis of the returns to a high school education using quarter of birth as an instrument we show that the standard instrumental variables estimates implicitly estimate the outcome distributions to be negative over a substantial range and that the estimates of the local average treatment effect change considerably when we impose nonnegativity in any of a variety of ways

the oregon health insurance experiment evidence from the first year in 2008 a group of uninsured low income adults in oregon was selected by lottery to be given the chance to apply for medicaid this lottery provides an opportunity to gauge the effects of expanding access to public health insurance on the health care use financial strain and health of low income adults using a randomized controlled design in the year after random assignment the treatment group selected by the lottery was about 25 percentage points more likely to have insurance than the control group that was not selected we find that in this first year the treatment group had substantively and statistically significantly higher health care utilization including primary and preventive care as well as hospitalizations lower out of pocket medical expenditures and medical debt including fewer bills sent to collection and better self reported physical and mental health than the control group

mobility and the return to education testing a roy model with multiple markets self selected migration presents one potential explanation for why observed returns to a college education in local labor markets vary widely even though u s workers are highly mobile to assess the impact of self selection on estimated returns this paper first develops a roy model of mobility and earnings where workers choose in which of the 50 states plus the district of columbia to live and work available estimation methods are either infeasible for a selection model with so many alternatives or place potentially severe restrictions on earnings and the selection process this paper develops an alternative econometric methodology that combines lee s 1983 parametric maximum order statistic approach to reduce the dimensionality of the error terms with more recent work on semiparametric estimation of selection models e g ahn and powell 1993 the resulting semiparametric correction is easy to implement and can be adapted to a variety of other polychotomous choice problems the empirical work which uses 1990 u s census data confirms the role of comparative advantage in mobility decisions the results suggest that self selection of higher educated individuals to states with higher returns to education generally leads to upward biases in ols estimates of the returns to education in state specific labor markets while the estimated returns to a college education are significantly biased correcting for the bias does not narrow the range of returns across states consistent with the finding that the corrected return to a college education differs across the u s the relative state to state migration flows of college versus high school educated individuals respond strongly to differences in the return to education and amenities across states

oaxaca blinder as a reweighting estimator the classic regression based estimator of counterfactual means studied by ronald oaxaca 1973 and alan blinder 1973 is shown to constitute a propensity score reweighting estimator based upon a linear model for the conditional odds of being treated

hedging and vertical integration in electricity markets this paper analyzes the interactions between competitive wholesale spot retail and forward markets and vertical integration in electricity markets we develop an equilibrium model with producers retailers and traders to study and quantify the impact of forward markets and vertical integration on prices risk premia and retail market shares we point out that forward hedging and vertical integration are two separate mechanisms for demand and spot price risk diversification that both reduce the retail price and increase retail market shares we show that they differ in their impact on prices and firms utility because of the asymmetry between production and retail segments vertical integration restores the symmetry between producers and retailers exposure to demand risk whereas linear forward contracts do not vertical integration is superior to forward hedging when retailers are highly risk averse we illustrate our analysis with data from the french electricity market this paper was accepted by wei xiong finance

how does your kindergarten classroom affect your earnings evidence from project star in project star 11 571 students in tennessee and their teachers were randomly assigned to classrooms within their schools from kindergarten to third grade this article evaluates the long term impacts of star by linking the experimental data to administrative records we first demonstrate that kindergarten test scores are highly correlated with outcomes such as earnings at age 27 college attendance home ownership and retirement savings we then document four sets of experimental impacts first students in small classes are significantly more likely to attend college and exhibit improvements on other outcomes class size does not have a significant effect on earnings at age 27 but this effect is imprecisely estimated second students who had a more experienced teacher in kindergarten have higher earnings third an analysis of variance reveals significant classroom effects on earnings students who were randomly assigned to higher quality classrooms in grades k 3 as measured by classmates end of class test scores have higher earnings college attendance rates and other outcomes finally the effects of class quality fade out on test scores in later grades but gains in noncognitive measures persist

optimal priority structure capital structure and investment we study the interaction between financing and investment decisions in a dynamic model where the firm has multiple debt issues and equityholders choose the timing of investment jointly optimal capital and priority structures can virtually eliminate investment distortions because debt priority serves as a dynamically optimal contract examining the relative efficiency of priority rules observed in practice we develop several predictions about how firms adjust their priority structure in response to changes in leverage credit conditions and firm fundamentals notably financially unconstrained firms with few growth opportunities prefer senior debt while financially constrained firms with or without growth opportunities prefer junior debt moreover lower rated firms are predicted to spread priority across debt classes finally our analysis has a number of important implications for empirical capital structure research including the relations between market leverage book leverage and credit spreads and tobin s q the influence of firm fundamentals on the agency cost of debt and the conservative debt policy puzzle the author 2011 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please e mail journals permissions oup com oxford university press

structural adjustment policies in developing economies this paper examines structural adjustment policies in ldcs defined as policy responses to external or internal shocks that are carried out with the objective of regaining the pre shock growth path the introductory section of the paper reports on policy experience that indicates that countries applying an outward oriented development strategy were better able to cope with external shocks than economies following an inward oriented strategy it is further shown that the adoption of realistic exchange rates and interest rates the avoidance of large budget deficits and the productive use of the proceeds of foreign borrowing eased the process of adjustment the paper examines in detail the elements of a policy package that may be applied in response to external or internal shocks in the case prevalent in developing economies when optimal policies are not applied thus the recommendations simultaneously aim at responding to shocks and undertaking incentives incentives to save and to invest the choice of public investments sectoral policies in energy and agriculture budgetary policies and monetary policies in the conclusions the interdependence of the various policy measures is indicated with further attention given to foreign borrowing

a unified welfare analysis of government policies we conduct a comparative welfare analysis of 133 historical policy changes over the past half century in the united states focusing on policies in social insurance education and job training taxes and cash transfers and in kind transfers for each policy we use existing causal estimates to calculate both the benefit that each policy provides its recipients measured as their willingness to pay and the policy s net cost inclusive of long term impacts on the government s budget we divide the willingness to pay by the net cost to the government to form each policy s marginal value of public funds or its mvpf comparing mvpfs across policies provides a unified method of assessing their impact on social welfare our results suggest that direct investments in low income children s health and education have historically had the highest mvpfs on average exceeding 5 many such policies have paid for themselves as governments recouped the cost of their initial expenditures through additional taxes collected and reduced transfers we find large mvpfs for education and health policies amongst children of all ages rather than observing diminishing marginal returns throughout childhood we find smaller mvpfs for policies targeting adults generally between 0 5 and 2 expenditures on adults have exceeded this mvpf range in particular if they induced large spillovers on children we relate our estimates to existing theories of optimal government policy and we discuss how the mvpf provides lessons for the design of future research

the value of creditor control in corporate bonds this paper introduces a measure that captures the premium in bond prices that is due to the value of creditor control we estimate the premium as the difference in the bond price and an equivalent synthetic bond without control rights that is constructed using credit default swap cds contracts we find empirically that this premium increases as firm credit quality decreases and around important credit events such as defaults bankruptcies and covenant violations the increase is greatest for bonds most pivotal to changes in control changes in bond and cds liquidity do not appear to drive increases in the premium

earnings determination and taxes evidence from a cohort based payroll tax reform in greece author s saez emmanuel matsaganis manos tsakloglou panos abstract this paper analyzes the response of earnings to payroll tax rates using a cohort based reform in greece all individuals who started working on or after 1993 face permanently a much higher earnings cap for payroll taxes creating a large and permanent discontinuity in marginal payroll tax rates by date of entry in the labor force for upper earnings workers using full population administrative social security data and a regression discontinuity design we estimate the long term incidence and effects of marginal payroll tax rates on earnings standard theory predicts that in the long run new regime workers should bear the entire burden of the payroll tax increase relative to old regime workers in contrast we find that employers compensate new regime workers for the extra employer payroll taxes but not for the extra employee payroll taxes we do not find any evidence of labor supply responses around the discontinuity suggesting low efficiency costs of payroll taxes the non standard incidence results are the same across firms of different sizes tax incidence however is standard for older workers in the new regime as they bear both the employee and employer tax those results combined with a direct small survey of employers can be explained by social norms regarding seniority based pay which create a growing wedge between pay and productivity as workers age

evaluating public programs with close substitutes the case of head start this paper empirically evaluates the cost effectiveness of head start the largest early childhood education program in the united states using data from the randomized head start impact study hsis we show that head start draws a substantial share of its participants from competing preschool programs that receive public funds this both attenuates measured experimental impacts on test scores and reduces the program s net social costs a cost benefit analysis demonstrates that accounting for the public savings associated with reduced enrollment in other subsidized preschools can reverse negative assessments of the program s social rate of return estimates from a semi parametric selection model indicate that head start is about as effective at raising test scores as competing preschools and that its impacts are greater on children from families unlikely to participate in the program efforts to expand head start to new populations are therefore likely to boost the program s social rate of return provided that the proposed technology for increasing enrollment is not too costly

the debt crisis structural explanations of country performance abstract this paper develops a cross country statistical model of debt rescheduling and the secondary market valuation of ldc debt which links these variables to key structural characteristics of developing countries such as the trade regime the degree of income inequality and the share of agriculture in gnp our most striking finding is that higher income inequality is a significant predictor of a higher probability of debt rescheduling in a cross section of middle income countries we attribute this correlation to various difficulties of political management in economies with extreme inequality we also find that outward orientation of the trade regime is a significant predictor of a reduced probability of debt rescheduling

ceo compensation in financially distressed firms an empirical analysis this paper studies senior management compensation policy in 77 publicly traded firms that filed for bankruptcy or privately restructured their debt during 1981 to 1987 almost one third of all ceos are replaced and those who keep their jobs often experience large salary and bonus reductions newly appointed ceos with ties to previous management are typically paid 35 less than the ceos they replace in contrast outside replacement ceos are typically paid 36 more than their predecessors and are often compensated with stock options on average ceo wealth is significantly related to shareholder wealth after firms renegotiate their debt contracts however managers compensation is sometimes explicitly tied to the value of creditors claims

market in efficiency in valuing electric utilities the case of norwegian generating companies after deregulation of the energy market in norway a number of mergers and acquisitions of hydropower generating companies have taken place however valuation of these companies has proved controversial from an ex post perspective there is support for the criticism that generation assets have been sold too cheaply this article presents a simple valuation model providing evidence of how value has evolved on the basis of these results we discuss the valuation from an ex ante perspective and in the light of the market efficiency hypothesis of fama 1970 1991

the effect of education on crime evidence from prison inmates arrests and self reports we estimate the effect of high school graduation on participation in criminal activity accounting for endogeneity of schooling we begin by analyzing the effect of high school graduation on incarceration using census data instrumental variable estimates using changes in state compulsory attendance laws as an instrument for high school graduation uncover a significant reduction in incarceration for both blacks and whites when estimating the impact of high school graduation only ols and iv estimators estimate different weighted sums of the impact of each schooling progression on the probability of incarceration we clarify the relationship between ols and iv estimates and show that the weights placed on the impact of each schooling progression can explain differences in the estimates overall the estimates suggest that completing high school reduces the probability of incarceration by about 76 percentage points for whites and 3 4 percentage points for blacks we corroborate these findings using fbi data on arrests that distinguish among different types of crimes the biggest impacts of graduation are associated with murder assault and motor vehicle theft we also examine the effect of drop out on self reported crime in the nlsy and find that our estimates for imprisonment and arrest are caused by changes in criminal behavior and not educational differences in the probability of arrest or incarceration conditional on crime we estimate that the externality of education is about 14 26 of the private return to schooling suggesting that a significant part of the social return to education comes in the form of externalities from crime reduction

does head start improve children s life chances evidence from a regression discontinuity design this paper exploits a new source of variation in head start funding to identify the program s effects on health and schooling in 1965 the office of economic opportunity oeo provided technical assistance to the 300 poorest counties to develop head start proposals the result was a large and lasting discontinuity in head start funding rates at the oeo cutoff for grant writing assistance we find evidence of a large drop at the oeo cutoff in mortality rates for children from causes that could be affected by head start as well as suggestive evidence for a positive effect on educational attainment i introduction head start was established in 1965 as part of the war on poverty to provide preschool health and other social services to poor children age three to five and their families and currently serves over 900 000 children each year at a cost of around 7 billion hhs 2006 this paper provides new evidence on the effects of the head start program on schooling and health by drawing on a new source of variation in program funding spe

attracting attention in a limited attention world exploring the causes and consequences of extreme positive earnings surprises we investigate why extreme positive earnings surprises occur and the consequences of these events we posit that managers know before analysts when extremely good earnings news is developing but can have incentives to allow the earnings news to surprise the market at the earnings announcement in particular managers can use an extreme positive earnings surprise to attract investor attention when they believe their stock is neglected and future performance is expected to be strong analysts who must allocate scarce resources across many firms can also be inattentive and miss signals that suggest good performance is going to be announced using various proxies for extreme positive earnings surprises management expectations for future performance and desire for attention and analyst neglect we find evidence that an extreme positive earnings surprise is a predictable event these findings are incremental to controlling for a firm s information environment earnings volatility and operating leverage finally we show that extreme positive earnings surprises are a successful method for attracting attention with significant increases in the number of institutional owners the number of analysts and trading volume during the subsequent three years this paper was accepted by mary barth accounting

firm characteristics and analyst following abstract this paper examines the major determinants of the number of analysts following a firm a simple model of analyst following is proposed and several firm characteristics are suggested that are likely to influence the extent of a firm s analyst following by either affecting the aggregate demand for or supply of analyst services or both for the firm almost all of these characteristics are found to be strongly significant in affecting the extent of analyst following of firms and the empirical results generally accord well with economic intuition

substitution and dropout bias in social experiments a study of an influential social experiment this paper considers the interpretation of evidence from social experiments when persons randomized out of a program being evaluated have good substitutes for it and when persons randomized into a program drop out to pursue better alternatives using data from an experimental evaluation of a classroom training program we document the empirical importance of control group substitution and treatment group dropping out evidence that one program is ineffective relative to close substitutes is not evidence that the type of service provided by all of the programs is ineffective although that is the way experimental evidence is often interpreted

lock in effects in relationship lending evidence from dip loans do prior lending relationships result in pass through savings lower interest rates for borrowers or do they lock in higher costs for borrowers theoretical models suggest that when borrowers experience greater information asymmetry higher switching costs and limited access to capital markets they become locked into higher costs from their existing lenders firms in chapter 11 seeking debtor in possession dip financing often fit this profile we investigate the presence of lock in effects using a sample of 348 dip loans we account for endogeneity using the instrument variable iv approach and the heckman selection model and find consistent evidence that prior lending relationship is associated with higher interest costs and the effect is more severe for stronger existing relationships our study provides direct evidence that prior lending relationships do create a lock in effect under certain circumstances such as dip financing

do firms undertake self tender offers to optimize capital structure this study investigates capital structure around 286 self tender offers from 1980 to 1997 firms that undertake self tender offers generally have debt ratios below their predicted levels before the offers the debt ratios following nondefensive self tender offers are close to predicted levels while the ratios following defensive self tender offers are above predicted levels further 20 and 43 of the debt ratings are downgraded following nondefensive and defensive self tender offers respectively finally the increases in debt ratios around the offers are negatively related to the difference from the predicted debt ratio before the offers

stick to the fundamentals and discover your peers the use of industry as a criterion for selecting peers for multiples based valuation rests on the notion that companies operating in the same industry are more likely to share fundamental value drivers i e profitability growth and risk however such companies may not have similar characteristics in terms of these drivers and thus should not be traded at the same multiple we analyze this issue by developing the sum of absolute rank differences sard approach the sard approach can account for an infinite number of proxies for profitability growth and risk while remaining independent of industry classifications our results indicate that the sard approach yields significantly more accurate valuation estimates than the industry classification approach

early kindergarten maternal labor supply and children s outcomes evidence from italy abstract we analyze a reform that introduced early access to subsidized childcare for 2 year old children in italy exploring the effects on several measures of maternal labor supply and on children s cognitive outcomes our identification strategy exploits discontinuities in the eligibility rules and the staggered implementation of the reform we find that the policy increased mothers participation in the labor market and lowered the reservation wage of the unemployed thus increasing their likelihood of finding a job at the same time the newly introduced childcare arrangement did not affect children s cognitive development irrespective of their family background

comparable firms and the precision of equity valuations abstract i investigate the relationship between the amount of information provided by a firm s comparables i e firms in the same line of business as the firm being valued and the precision of the firm s equity valuation when investors have more information previous studies argue that investors can make a more precise estimate of a firm s true equity value and this implies a lower excess stock return volatility around corporate events such as earnings announcements i develop a simple model that shows a negative relationship between the amount of information provided by a firm s comparables and the firm s stock return volatility using alternative measures of information provided by comparables and different definitions of comparables i consistently find a negative and significant relationship between these information measures and stock return volatility ceteris paribus