uncertainty and endogenous technical change in climate policy models until recently endogenous technical change and uncertainty have been modeled separately in climate policy models in this paper we review the emerging literature that considers both these elements together taken as a whole the literature indicates that explicitly including uncertainty has important quantitative and qualitative impacts on optimal climate change technology policy

what drives the high moments of hedge fund returns abstractwe study the high moment distribution of hedge fund returns and identify factors that drive high moment risk using hedge fund monthly returns we find a strong correlation between the first four moments of returns i e mean standard deviation sd skewness and kurtosis and different characteristics of the funds such as leverage liquidity incentives and strategy related factors we find that after controlling for other factors incentives related factors and a hedge fund s specific strategy have the greatest impact on the distribution of fund returns our evidence also suggests investors allocate across hedge fund characteristics while placing greater emphasis on fund strategies and incentive factors

effects of welfare reform on women s voting participation this study investigates the effects of welfare reform in the united states in the 1990s on voting among low income women using the november current population surveys with the added voting and registration supplement for the years 1990 through 2004 and exploiting changes in welfare policy across states and over time we estimate the causal effects of welfare reform on women s voting registration and voting participation during the period in which welfare reform unfolded during this time period voter turnout was decreasing in the united states we find robust evidence that welfare reform led to smaller declines in voting about 3 to 4 percentage points which translates to about 10 relative to the baseline mean for women who were exposed to welfare reform compared to several different comparison groups of similar women who were much less exposed the robust findings suggest that welfare reform had prosocial effects on civic participation as characterized by voting the effects were largely confined to presidential elections were stronger in democratic than republican states were stronger in states with stronger work incentive policies and appeared to operate through employment education and income jel d72 h53 i38 j21

does education affect risk aversion evidence from the british education reform individual risk attitudes are frequently used to predict decisions regarding education however using risk attitudes as a control variable for decisions about education has been criticized because of the potential for reverse causality causality between risk aversion and education is unclear and disentangling the different directions it may run is difficult in this study we make the first attempt to investigate the causal effects of education on risk aversion by examining the british education reform of 1972 which increased the duration of compulsory schooling from age 15 to age 16 using regression discontinuity design we find that this additional year of schooling increases the level of risk aversion which is contrary to previous findings in the literature and we also find that this result is particularly strong for individuals with less education this positive causal effect of education on risk aversion might alleviate concerns regarding the endogeneity reverse causality issue when using risk aversion as an explanatory variable for decisions about education the sign would remain credible because the coefficients are underestimated

is education always reducing fertility evidence from compulsory schooling reforms we study the relationship between education and fertility exploiting compulsory schooling reforms in england and continental europe implemented between 1936 and 1975 we assess the causal effect of education on the number of biological children and the incidence of childlessness while we find a negative relationship between education and fertility in england this result can not be confirmed for continental europe the additional education generated by schooling expansions on the continent did not lead to a decrease in the number of biological children nor to an increase in childlessness these findings are robust to a number of sensitivity and falsification checks author s abstract

engineering robust instruments for gmm estimation of panel data regression models with errors in variables a note econometricians have long recognized the need to account in some way for measurement errors specification errors and endogeneity to ensure that the ordinary least squares estimator is consistent this article introduces a new generalized method of moments estimator that relies on robust instruments to estimate panel data regression models containing errors in variables we show how this gmm approach can be generalized for the panel data framework using higher moments and cumulants as instruments the new instruments engineered for greater robustness are proposed to tackle the pervasive problem of weak instruments

education and propaganda tradeoffs to public education provision in nondemocracies abstract nondemocratic regimes face a tradeoff when investing in public education education promotes human capital acquisition expanding the tax base yet it also enhances political sophistication and participation at a cost to nondemocratic regimes to relax this tradeoff a regime can disseminate propaganda through its education system i show that even bayesian citizens can be influenced by propaganda by deterring political opposition propaganda can induce nondemocracies to invest in education when they otherwise would not improving social welfare when propaganda is too strong however it can generate a backlash using cross country and survey data i find evidence consistent with the predictions

uncertain r d backstop technology and ghgs stabilization abstract this paper analyses optimal investments in innovation when dealing with a stringent climate target and with the uncertain effectiveness of r d the innovation needed to achieve the deep cut in emissions is modeled by a backstop carbon free technology whose cost depends on r d investments to better represent the process of technological progress we assume that r d effectiveness is uncertain by means of a simple analytical model we show how accounting for the uncertainty that characterizes technological advancement yields higher investments in innovation and lower policy costs we then confirm the results via a numerical analysis performed with a stochastic version of witch an energy economy climate model the results stress the importance of a correct specification of the technological change process in economy climate models

are there civic returns to education abstract the hypothesized effects of educational attainment on adult civic engagement and attitudes provide some of the most important justifications for government intervention in the market for education in this study i present evidence on whether these externalities exist i assess and implement two strategies for identifying the effects of educational attainment one is based on the availability of junior and community colleges the other on changes in teen exposure to child labor laws the results suggest that educational attainment has large and statistically significant effects on subsequent voter participation and support for free speech i also find that additional schooling appears to increase the quality of civic knowledge as measured by the frequency of newspaper readership

the optimal research and development portfolio of low carbon energy technologies a study of china to support decision making for an optimal portfolio strategy for low carbon energy technology research and development r d this study proposes a dynamic two stage stochastic programming model taking into account both the uncertainty of technological change and damages of climate change based on china s economic and technology level and expert elicitation an r d investment portfolio strategy looking at three low carbon technologies carbon capture and storage ccs solar photovoltaic pv and nuclear including nine projects is investigated through the proposed model the optimized results show that the optimal r d technology portfolio is robust to different levels of risk in climate damage however the total social costs for the optimal r d technology portfolio is lowest in the medium risk of climate damage scenario under different opportunity costs the composition of the optimal r d portfolio varies however projects for each of the three technologies always constitute the optimal r d portfolio furthermore the implication is that a technology synergistic r d strategy is conducive to enhancing the level of co2 abatement and reducing the total social cost

distributional aspects of emissions in climate change integrated assessment models the recent failure of copenhagen negotiations shows that concrete actions are needed to create the conditions for a consensus over global emission reduction policies a wide coalition of countries in international climate change agreements could be facilitated by the perceived fairness of rich and poor countries of the abatement sharing at international level in this paper i use two popular climate change integrated assessment models to investigate the path and decompose components and sources of future inequality in the emissions distribution results prove to be consistent with previous empirical studies and robust to model comparison and show that gaps in gdp across world regions will still play a crucial role in explaining different countries contributions to global warming

the risk in hedge fund strategies theory and evidence from trend followers hedge fund strategies typically generate option like returns linear factor models using benchmark asset indices have difficulty explaining them following the suggestions in glosten and jagannathan 1994 this article shows how to model hedge fund returns by focusing on the popular trend following strategy we use lookback straddles to model trend following strategies and show that they can explain trend following funds returns better than standard asset indices though standard straddles lead to similar empirical results lookback straddles are theoretically closer to the concept of trend following our model should be useful in the design of performance benchmarks for trend following funds

misreported schooling and returns to education evidence from the uk this paper aims to provide a number of contributions of policy practical and methodological interest to the study of the returns to educational qualifications first we derive estimates of the returns to different qualifications for the uk that allow for the possibility of misreported attainment using data from the british national child development survey to date any major empirical evidence on the importance of this issue is restricted to the us where it was shown that errors might indeed play a non negligible role second we aim to provide the academic and policy community with estimates of the accuracy of commonly used types of data on educational attainment administrative files self reported information close to the date of completion of the qualification and recall information ten years after completion third by using the unique nature of our data we assess how the biases from measurement error and from omitted ability and family background variables interact in the estimation of returns we intend to produce simple calibration rules to allow policymakers to use nationally representative data such as the labour force survey that totally rely on self reported information on qualifications and contain little or no information on individual ability and family background we rely throughout on a unified framework of general applicability to study the impact of misreported treatment status on the estimation of causal treatment effects jel codes c10 i20 j31

the rise of the states u s fiscal decentralization in the postwar period article i nfo article history one of the most dramatic changes in the fiscal federalism landscape during the postwar period has been the rapid growth in state budgets which almost tripled as a share of gdp and doubled as a share of government spending between 1952 and 2006 we argue that the greater role of states cannot be easily explained by changes in tiebout forces of fiscal competition such as mobility and voting patterns and are not accounted for by demographic or income trends rather we demonstrate that much of the growth in state budgets has been driven by changes in intergovernmental interactions restricted federal grants to states have increased and federal policy and legal constraints have also mandated or heavily incentivized state own source spending particularly in the areas of education health and public welfare these outside pressures moderate the forces of fiscal competition and must be taken into account when assessing the implications of observed revenue and spending patterns

climate change and optimal energy technology r d policy public policy response to global climate change presents a classic problem of decision making under uncertainty theoretical work has shown that explicitly accounting for uncertainty and learning in climate change can have a large impact on optimal policy especially technology policy however theory also shows that the specific impacts of uncertainty are ambiguous in this paper we provide a framework that combines economics and decision analysis to implement probabilistic data on energy technology research and development r d policy in response to global climate change we find that given a budget constraint the composition of the optimal r d portfolio is highly diversified and robust to risk in climate damages the overall optimal investment into technical change however does depend in a non monotonic way on the risk in climate damages finally we show that in order to properly value r d abatement must be included as a recourse decision

innovation policy for directing technical change in the power sector this paper discusses policy instruments for redirecting technical change within the electricity sector to mitigate climate change first we unravel the mechanism behind directed technical change explaining why markets may underprovide innovations in expensive renewable technologies in comparison to innovations in energy efficient fossil fuel generators subsequently we characterize technical change in electricity generation technologies stressing the heterogeneity of knowledge spillovers both within and between clean electricity generation technologies we argue that there exists a rationale for a portfolio approach to innovation in the electricity sector i e optimal innovation policies are neither fully generic nor fully specific and they need to be adapted in response to new information learned by the government the existing innovation literature does not however provide a clear cut answer for designing such a policy we compare policy instruments and argue that public r d support to clean technologies either in the form of subsidies or prizes seems to be the prime candidate for implementing non generic innovation policy

large scale scenario analysis of future low carbon energy options abstract in this study we use a multi model framework to examine a set of possible future energy scenarios resulting from rd and portfolios lacking ccs and nuclear tend to be stochastically dominated by others we find that the dominance of ccs becomes even stronger as uncertainty in climate damages increases finally we show that there is significant value in carefully choosing a portfolio as relatively small portfolios can dominate large portfolios

cumulant instrument estimators for hedge fund return models with errors in variables we revisit the factors incorporated in asset pricing models following the recent developments in financial markets i e the rise of shadow banking and the change in the transmission channel of monetary policy we propose two versions of the fung and hsieh 2004 hedge fund return model especially an augmented market model which accounts for the new dynamics of financial markets and the procyclicality of hedge fund returns we run these models with an innovative hausman procedure tackling the measurement errors embedded in the models factor loadings our empirical method also allows for confronting the drawbacks of the instruments used to estimate hedge fund asset pricing models

the effect of education on adult mortality and health evidence from britain there is a strong positive and well documented correlation between education and health outcomes in this paper we attempt to understand to what extent this relationship is causal our approach exploits two changes to british compulsory schooling laws that generated sharp across cohort differences in educational attainment using regression discontinuity methods we find the reforms did not affect health although the reforms impacted educational attainment and wages our results suggest caution as to the likely health returns to educational interventions focused on increasing educational attainment among those at risk of dropping out of high school a target of recent health policy efforts jel h52 i12 i21 i28

the impact of alcohol consumption on occupational attainment in england in this study we provide evidence on the effect of alcohol consumption on occupational attainment in england to do this we use samples of employees from the health survey for england between 1992 and 1996 we find that owing to the endogenous nature of alcohol consumption ols estimates may provide a biased picture of the impact of alcohol consumption on occupational attainment using various sets of instrumental variables we find positive and significant returns to moderate levels of drinking for male and female employees which drop off rapidly as consumption increases

technological change and uncertainty in environmental economics abstract technological change is widely believed to play a crucial role in mastering the challenges of man made climate change the drivers and impacts of technological change have therefore become an important research issue in the field of climate economics while models to analyze the interactions between economy energy and the environment initially treated technological change as exogenous more recent modeling approaches often represent technological change as endogenously induced typically models of induced technological change in climate economics are based on perfect foresight in a deterministic world however both technological change and climate impacts are subject to large uncertainties that may substantially affect the design of efficient climate policies against this background the special issue presents five articles contributing to the study of uncertainty and technological change in climate change economics

the relationship between education and adult mortality in the united states prior research has uncovered a large and positive correlation between education and health this paper examines whether education has a causal impact on health i follow synthetic cohorts using successive u s censuses to estimate the impact of educational attainment on mortality rates i use compulsory education laws from 1915 to 1939 as instruments for education the results suggest that education has a causal impact on mortality and that this effect is perhaps larger than has been previously estimated in the literature copyright 2005 wiley blackwell

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

intergenerational transmission of education and mediating channels evidence from a compulsory schooling reform in germany in this paper i estimate the causal effect that an additional year of schooling for parents has on their children s education by exploiting a compulsory schooling reform that was implemented in all west german states between 1946 and 1969 although previous research indicates that the reform had no effect on earnings i find that an additional year of schooling for women strongly affects the education of their sons there is no effect for the other parent child gender pairs i investigate numerous channels that might mediate the positive effect of the education of mothers most importantly i find that individuals with more schooling value their children s educational success as more important

does education increase pro environmental behavior evidence from europe abstract it is often observed that individuals with higher education levels tend to be more environmentally friendly yet the causal evidence is lacking because there may well be omitted variables that cause individuals to attain more education and also cause individuals to be environmentally conscious we implement a regression discontinuity design to estimate the increase in educational attainment due to changes in compulsory education laws in 20th century europe this allows us to overcome the identification problem of endogenous educational attainment using two waves of eurobarometer surveys we find a positive local average treatment effect for 7 of the 8 pro environmental behaviors an analysis of related questions on the survey supports the notion that education causes individuals to be more concerned with social welfare and to accordingly behave in a more environmentally friendly manner

do dropouts drop out too soon wealth health and happiness from compulsory schooling abstract this paper uses compulsory schooling laws to evaluate high school dropout decisions the main empirical result is that lifetime wealth increases by about 15 with an extra year of compulsory schooling students compelled to stay in school are also less likely to report being in poor health unemployed and unhappy the main conclusion is that high school aversion alone is unlikely to explain why dropouts forgo substantial gains to lifetime wealth the results are more consistent with the possibility that adolescents ignore or heavily discount future consequences when deciding to drop out of school if teenagers are myopic making school compulsory or offering incentives to stay in school may help improve lifetime outcomes

schooling and citizenship in a young democracy evidence from postwar germany this paper examines whether schooling has a causal impact on individuals political interest voting turnout democratic values political involvement and political membership using two national representative samples between 1949 and 1969 the number of compulsory years of schooling was increased from eight to nine years in the federal republic of germany gradually over time and across federal states these legislative changes allow one to investigate the causal impact of years of schooling on citizenship in a young democracy years of schooling are found to be positively correlated with a broad range of citizenship outcomes however when exogenous increase in schooling through legislative changes is used there is little evidence of a causal efiect several potential explanations are examined 1 poor or apolitical teaching practices in the post war period 2 shortages of qualifled teachers and adequate teaching material 3 extra curricular civic education and 4 whether civic knowledge might have been acquired prior to the increase in schooling the estimates reject the flrst three explanations whereas ample historical evidence is in favour of the hypothesis that the fundamentals of democracy were learned already earlier in school

corruption and destructive entrepreneurship the negative effects of corruption at the macro level are well documented corruption reduces economic growth lowers investment and erodes trust in government officials creating an institutional environment that pushes entrepreneurs from productive to destructive activities corruption also has effects at the micro level because some industries are better situated to profit from corruption than others corruption not only lowers economic output but also shifts resources toward some industries and away from others using federal convictions in the usa as a measure of corruption regression results show that increased corruption shifts resources toward the construction industry and away from the education industry and professional scientific and technical service industry the evidence also shows that the distance from state capitals and voter turnout moderate the relationship between corruption and firm concentrations

the effect of price shocks on undocumented students college attainment and completion we examine the effect of a price shock caused by the temporary removal of in state tuition benefits on the attainment of undocumented immigrants enrolled in a large urban college system using a difference in differences identification strategy the 113 one semester tuition increase led to an 8 decrease in reenrollment and a similarly sized reduction in credit accumulation for students who had been enrolled at least a year prior to the policy change the price hike caused them to leave college sooner but did not increase their probability of dropping out conversely students who entered college the semester prior to the policy change experienced lasting reductions in attainment including a 22 decrease in degree receipt compared to students with more college experience at the time of the price shock our results suggest that public subsidies that lower college prices can increase degree completion among resource constrained students who have made the decision to enroll in college with larger benefits accruing to those who are early in their college careers

the impact of growth energy and financial development on the environment in china a cointegration analysis this article aims to investigate the impact of financial development economic growth and energy consumption on environmental pollution in china from 1953 to 2006 using the autoregressive distributed lag ardl bounds testing procedure the main objective is to examine the long run equilibrium relationship between financial development and environmental pollution the results of the analysis reveal a negative sign for the coefficient of financial development suggesting that financial development in china has not taken place at the expense of environmental pollution on the contrary it is found that financial development has led to a decrease in environmental pollution it is concluded that carbon emissions are mainly determined by income energy consumption and trade openness in the long run moreover the findings confirm the existence of an environmental kuznets curve in the case of china

compulsory schooling laws and school crime extensive literature demonstrates that compulsory schooling laws improve educational attainment well being civic involvement and labour market outcomes however at risk youth incapacitated to schools may impact the learning environment and school safety the purpose of this article is to study whether raising the minimum dropout age mda requirement above 16 increases crime committed within us public high schools a difference in difference estimation exploits changes in state level mda laws over time and indicates that schools in states that raise their mda requirement to 18 incur more overall crime relative to schools in states that do not while no effect on overall crime is identified when the mda requirement is raised to 17 furthermore these effects persist for 4 years after passage and more intensely in metropolitan areas coupling this research with existing literature suggests that when the mda requirement is raised to 18 only a small portion of the observed reduction in juvenile crime is

are educated workers really more productive abstract this paper presents a new method for examining the productive nature of education it outlines an econometric model which simultaneously estimates an earnings function and a production function for workers and the firms where they are employed this approach permits a direct comparison to be made between the relative wage and relative productivity of workers with different levels of education using a unique data set from ghana two primary questions are addressed 1 are educated workers more productive than workers with no formal education and 2 do earnings differentials between workers with different levels of education reflect genuine productivity differentials the results suggest that education is positively correlated with productivity in ghanaian manufacturing and that firms pay workers according to their productivity

dynamic linkages between globalization financial development and carbon emissions evidence from asia pacific economic cooperation countries abstract this study determines the dynamic linkages between globalization financial development and carbon emissions in asia pacific economic cooperation apec countries in the presence of energy intensity and economic growth under the framework of environment kuznets curve ekc this study employs the panel data from 1990 to 2016 westerlund cointegration technique to find long run cointegration and continuously updated bias corrected cup bc and continuously updated fully modified cup fm methods to check the long run elasticities between the variables empirical results indicate that globalization and financial development significantly reduce carbon emissions but economic growth and energy intensity increase them these results support the ekc hypothesis for apec countries the dumitrescu and hurlin causality analysis shows that globalization granger causes co2 emissions globalization also causes financial development and energy intensity a feedback effect exists between financial development and co2 emissions furthermore financial development causes economic growth but similar is not true from opposite side in granger sense finally this study presents important policy implications with respect to apec countries

the size of human capital externalities cross country evidence human capital accumulation is usually held to generate positive externalities however the empirical evidence on human capital externalities has been scarce and inconclusive the missing evidence appears to be caused by misleading comparisons between private and social rates of return by incorrect interpretations of regression coefficients or by an inappropriate level of aggregation our own estimates point to relatively robust empirical evidence for a human capital externality that is about twice as large as a benchmark estimate which is derived from a standard parameterization of a simple growth model we ponder a possible causal link from human capital to social capital in the context of alternative views of long run development and argue that the grand transition view paldam 2002 is compatible with the existence of a large human capital externality

does compulsory school attendance affect schooling and earnings we establish that season of birth is related to educational attainment because of school start age policy and compulsory school attendance laws individuals born in the beginning of the year start school at an older age and can therefore drop out after completing less schooling than individuals born near the end of the year roughly 25 percent of potential dropouts remain in school because of compulsory schooling laws we estimate the impact of compulsory schooling on earnings by using quarter of birth as an instrument for education the instrumental variables estimate of the return to education is close to the ordinary least squares estimate suggesting that there is little bias in conventional estimates every developed country in the world has a compulsory schooling requirement yet little is known about the effect these laws have on educational attainment and earnings 1 this paper exploits an unusual natural experiment to estimate the impact of compulsory schooling laws in the united states the experiment stems from the fact that children born in different months of the year start school at different ages while compulsory schooling laws generally require students to remain in school until their sixteenth or seventeenth birthday in effect the interaction of school entry requirements and compulsory schooling laws compel students born

balancing solar pv deployment and rd d a comprehensive framework for managing innovation uncertainty in electricity technology investment planning abstract we present a new framework for studying the socially optimal level of generating capacity and public rd d investments for the electric power sector under decision dependent technical change uncertainty we construct a bottom up stochastic electricity generation capacity expansion model with uncertain endogenous rd d based technical change focusing on solar pv rd d investment planning for its current prominent role in sustainable energy and climate policy deliberations we characterize the decision dependent process of technical change uncertainty as unknown outcomes of rd d investments that increase the likelihood of success with increasing amounts of rd d and calibrate to a novel expert elicitation dataset that accounts for this decision dependence the problem is framed as a multi stage decision under uncertainty where the decision maker learns and adapts to new information between decision periods specifically our application considers four decision stages with the decision maker choosing investment levels for new capacity and solar pv rd d while learning about rd d outcomes that can reduce solar pv costs between each stage the problem is thus formulated to match the manner in which real world decisions about rd d investments in renewable energy are made and avoids common assumptions of perfect foresight or uncertainty but no learning that are often used in practice numerical results show that when uncertainty and learning features are both included the optimal solar pv rd d investment strategy changes from solutions using other methods considering uncertainty and learning results in solar rd d investment differences as high as 20 percent lower in the first stage and 300 percent higher in later stages we also show that when uncertainty is considered without learning the fraction of new solar pv capacity investments can be depressed overall this paper shows that it is possible to unify several realistic features of the deployment and development problem for the electricity sector to meet sustainability goals into one framework

a portfolio decision analysis approach to support energy research and development resource allocation abstract research sponsored by the us department of energy doe aims to facilitate a clean and independent energy future for the nation strategic planning for energy research and development r d can be complex and dynamic in part due to federal budgetary constraints and volatility managing r d funding to advance energy technologies in spite of these challenges is a crucial component of the nation s long term energy policy this study demonstrates a portfolio decision analysis pda approach to support r d resource allocation decisions for the doe office of fossil energy s carbon capture and storage r d program a multi attribute value model uses technology readiness levels trls and other metrics to represent the overall objectives of the r d program in order to evaluate alternative research portfolios given limited funding mathematical optimization identifies efficient funding allocations for each technology program area to maximize the multi attribute value generated from the total budget this is especially useful for responding to externally imposed budget changes as the case study demonstrates explicitly funding the most value generating options leads to greater expected r d programmatic value than typical strategies of equal or proportional distributions of a budget change among technology program areas

analysing wage differentials when workers maximize the return to human capital investment abstractthe analysis of the determinants of differences in wages across workers has traditionally relied on the estimation of average earnings functions in this article we propose a new theoretical model where it is the workers who decide the amount they wish to invest in human capital taking into account the costs of acquiring those skills for the purpose of maximizing earnings in this model both human capital and marginal productivity are likely to be influenced by the individual s unobserved characteristics such as ability or motivation potentially giving rise to endogeneity problems in this context the empirical implementation of our theoretical model allows us under certain assumptions to obtain consistent estimates even under the assumption of endogeneity we present an empirical application to the education sector using data from the spanish structure of earnings survey 2010 our results show that females and workers in the private education sector face more difficulties in achieving t

beyond ses a resource model of political participation this paper develops a resource model of political participation the resources considered are time money and civic skills those communications and organizational capacities that are essential to political activity these skills are not only acquired early in life but developed in the nonpolitical institutional settings of adult life the workplace organizations and churches and synagogues these resources are distributed differentially among groups defined by socioeconomic status a two stage least squares analysis shows these resources have powerful effects on overall political activity thus explaining why socioeconomic status has traditionally been so powerful in predicting participation we disaggregate overall activity into three kinds of acts those that involve giving time those that entail donating money and voting each requires a different configuration of resources resulting in different patterns of stratification across various political acts

returns to education evidence from u k twins we use a new sample of uk female identical twins to estimate private economic returns to education we report findings in three areas first we use identical twins to control for family effects and genetic ability bias and the education reported by the other twin to control for schooling measurement error our estimates suggest a return to schooling for uk females of about 7 7 second we investigate within twin pair ability differences by examining within twin pair and between family correlations of education with observable correlates of ability including birthweight ability tests and reading scores our findings suggest lower ability bias in within twin pair regressions than pooled regressions third using data on twins smoking we show smoking reflects family background and using it as an instrument exacerbates ability bias this abstract was borrowed from another version of this item

the marginal and average returns to schooling in the uk abstract we explore the possibility that different instruments may affect different margins of the schooling distribution and consistent with recent evidence we find a large significant downward bias in the least squares estimate of the returns to schooling and that the estimates are stable with respect to the choice of instruments however when we remove the assumption that log wages are linear in years of schooling we find sensitivity to the choice of instrument

does political knowledge increase turnout evidence from the 1997 british general election a number of recent formal models predict a positive effect of political knowledge on turnout both information acquisition and turnout however are likely to be determined by a similar set of variables rendering hard the identification of a causal link in empirical investigations available empirical regularities should therefore be interpreted as mere correlations i address this problem by using an intrumental variables approach where the instruments are represented by various proxies of information supply on mass media using survey data from the 1997 british general election study i show that political knowledge has a sizeable influence on the probability of voting and that mass media play an important role in influencing political participation

the schooling decision family preferences intergenerational conflict and moral hazard in the brazilian favelas this paper experimentally analyzes the schooling decisions of poor households in urban brazil we elicit parents choices between monthly government transfers conditional on their adolescent child attending school and guaranteed unconditional transfers of varying sizes in the baseline treatment an overwhelming majority of parents prefer conditional transfers to larger unconditional transfers however few parents prefer conditional payments if they are offered text message notifications whenever their child misses school these findings suggest important intergenerational conflicts in these schooling decisions a lack of parental control and observability of school attendance and an additional rationale for conditional cash transfer programs the monitoring they provide

on the link between urban form and automobile use evidence from german survey data this study investigates the influence of urban form on automobile travel using household survey data from germany two dimensions of car use are considered the discrete decision to own a car and the continuous decision of distance traveled because these decisions are likely influenced by factors unobservable to the researcher the authors apply censored regression models to evaluate the role of biases emerging from sample selectivity unlike much of the literature it is found that urban form variables are a significant determinant of both automobile ownership and use a finding that holds even after using instrumental variables to control for endogeneity

schooling political participation and the economy abstract we investigate how the link between individual schooling and political participation is affected by country characteristics using individual survey data we find that political participation is more responsive to schooling in land abundant countries and less responsive in human capital abundant countries even while controlling for country political institutions and cultural attitudes we find related evidence that political participation is less responsive to schooling in countries with a higher skill premium as well as within countries for individuals in skilled occupations the evidence motivates a theoretical explanation in which patterns of political participation are influenced by the opportunity cost of engaging in political rather than production activities

priceless the nonpecuniary benefits of schooling copyright 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 by the american economic association permission to make digital or hard copies of part or all of american economic association publications for personal or classroom use is granted without fee provided that copies are not distributed for profit or direct commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation including the name of the author copyrights for components of this work owned by others than aea must be honored abstracting with credit is permitted the author has the right to republish post on servers redistribute to lists and use any component of this work in other works for others to do so requires prior specific permission and or a fee permissions may be requested from the american economic association administrative office by going to the contact us form and choosing copyright permissions request from the menu copyright 2016 aea

does education raise productivity or just reflect it education has an important effect on wages but it not clear whether this is because education raises productivity or because education is simply a signal of ability we implement a number of existing tests for discriminating between these two explanations and find that they do not support the signalling hypothesis however we have severe reservations about these results and we propose an alternative test based on changes in education incentives caused by changes in the minimum school leaving age in the 1970s using this idea we find that uk data appear to strongly support the human capital explanation an important issue in the economics of education is that an individual s education has an effect on wages paid in the labour market for example blundell et al 2003 uses detailed education and subsequent earnings information for a cohort of male individuals born in 1958 to estimate that the returns to a uk degree typically of 3 year duration relative to graduating from high school at 18 with 2 a level qualifications a necessary but not sufficient condition for admission to university is a 24 wage premium human capital explanations pioneered by becker 1962 and schultz 1963 suggest that the correlation between education and wages is due to education enhancing productivity however earnings may rise in response to education not because of any effect on productivity but simply because education may act as a signal of productivity employers believing that education is correlated with productivity will screen workers for their education and pay higher wages to the more educated the employers beliefs will be confirmed by their experience if it is the case that high productivity individuals signal this by choosing high levels of education it will be optimal for individuals to behave in this way if the cost of acquiring education is less for high productivity individuals than it is for low productivity individuals thus under reasonable conditions the market will be characterised by a separating equilibrium where higher productivity individuals choose higher levels of education than lower productivity workers and earn correspondingly higher wages the theory is largely due to spence 1973 1979 and the subsequent empirical literature was reviewed by groot and oosterbeek 1994 riley 2001 provides an excellent modern survey chevalier harmon and walker are fellows of iza in bonn and are affiliated with the institute for the study of social change issc in dublin this paper is part of the issc policy evaluation programme chevalier and walker are also affiliated with the centre for the economics of education at the london school of economics lse the support of all of these bodies for facilitating our collaboration is acknowledged harmon is grateful to university college london for their hospitality during his nuffield foundation new career development fellowship in the social sciences comments from steve machin and three anonymous referees greatly improved the exposition of this paper we are also grateful to richard blundell and to seminar participants at the lse and the tinbergen institute in amsterdam for their comments and to vincent o sullivan for excellent research assistance the usual disclaimer applies

labour market consequences of a high school diploma this article compares the labour market outcomes of high school dropouts to high school graduates who did not enrol into higher education but immediately entered the labour market using parental

does higher economic and financial development lead to environmental degradation evidence from bric countries abstract a vast number of studies addressed the environmental degradation and economic development but not financial development moreover as argued by stern 2004 the rise and fall of the environmental kuznets curve world development 32 1419 1439 they present important econometric weaknesses using standard reduced form modeling approach and controlling for country specific unobserved heterogeneity we investigate the linkage between not only economic development and environmental quality but also the financial development panel data over period 1992 2004 is used we find that both economic and financial development are determinants of the environmental quality in bric economies we show that higher degree of economic and financial development decreases the environmental degradation our analysis suggests that financial liberalization and openness are essential factors for the co 2 reduction the adoption of policies directed to financial openness and liberalization to attract higher levels of r d related foreign direct investment might reduce the environmental degradation in countries under consideration in addition the robustness check trough the inclusion of us and japan does not alter our main findings

r d investment strategy for climate change abstract the economic costs of stabilizing greenhouse gas concentrations over the coming century depend critically on the development of new technologies in the energy sector our research and development r d investment strategy is the control variable for technology availability this paper proposes an analytic framework for determining optimal r d investment allocation and presents some numerical results to demonstrate the implementation of the methodology the value of technological advance in three targeted areas fossil based generation renewables and carbon capture and storage is represented by the increase in expected welfare in the presence of an emissions policy constraint of initially uncertain stringency r d expenditure increases the probability of advance optimal investment is determined by its relationship with success probability which is assumed to exhibit decreasing returns to scale relative to the value of success while the numerical results are speculative the paper offers insights into the nature of an optimal technology strategy for addressing climate change

poverty and the political economy of public education spending evidence from brazil a large body of literature has emphasized the elite capture of democratic institutions as the explanation for the low levels of spending on public education in many low income democracies this paper provides an alternative to that longstanding hypothesis motivated by new cross country facts and evidence from brazilian municipalities we hypothesize that many democratic developing countries might invest less in public education spending because poor decisive voters prefer the government to allocate resources elsewhere one possible explanation is that low income voters could instead favor redistributive programs that increase their incomes in the short run such as cash transfers to test for this possibility we design and implement an experimental survey and an incentivized choice experiment in brazil the findings from both interventions support our hypothesis

the expansion and convergence of compulsory schooling in western europe 1950 2000 this paper examines the expansion of compulsory schooling in fifteen western european countries over 1950 2000 we show that a convergence process has occurred across these countries since 1950 we argue that the major driver of this phenomenon is the existence of decreasing aggregate returns to education that have limited the extension of compulsory schooling then we test whether convergence holds when confronted with other explanations described in the literature conditional convergence does hold and we find that openness has been another significant determinant of compulsory years of schooling reflecting the need of a skilled labour force in an increasingly globalized world

cost benefit analyses versus referenda we consider a planner who chooses between two public policies and ask whether a referendum or a cost benefit analysis leads to higher welfare we find that a referendum leads to higher welfare than a cost benefit analysis in a common value environment cost benefit analysis is better in a private value environment

the effects of financial development economic growth coal consumption and trade openness on co2 emissions in south africa abstract this paper explores the effects of financial development economic growth coal consumption and trade openness on environmental performance using time series data over the period 1965 2008 in case of south africa the ardl bounds testing approach to cointegration has been used to test the long run relationship among the variables while short run dynamics have been investigated by applying error correction method ecm the unit root properties of the variables are examined by applying saikkonen and lutkepohl 2002 econometric theory 18 313 348 structural break unit root test our findings confirmed long run relationship among the variables results showed that a rise in economic growth increases energy emissions while financial development reduces it coal consumption has significant contribution to deteriorate environment in south african economy trade openness improves environmental quality by reducing the growth of energy pollutants our empirical results also verified the existence of environmental kuznets curve this paper opens up new insights for south african economy to sustain economic growth by controlling environment from degrdation through efficient use of energy

estimating the economic return to schooling on the basis of panel data this paper is concerned with estimating the economic return to schooling of men in the netherlands an iv approach is adopted to estimate a panel data model with random individual effects the fact that older individuals have relatively less schooling than younger individuals is exploited to construct instruments and gnp per worker at the time an individual turned 16 is included to control for birth cohort effects the estimated return to schooling is about 15 ignoring the endogeneity of schooling results in a lower return to schooling ignoring birth cohort effects results in a lower return to work experience

co2 emissions energy consumption income and foreign trade a south african perspective abstract the effect of trade liberalisation on environmental conditions has yielded significant debate in the energy economics literature although research on the relationship between energy consumption emissions and economic growth is not new in south africa no study specifically addresses the role that south africa s foreign trade plays in this context a surprising fact given trade is one of the most important factors that can explain the environmental kuznets curve this study employs recent south african trade and energy data and modern econometric techniques to investigate this the main finding of interest in this paper is the existence of a long run relationship between environmental quality levels of per capita energy use and foreign trade in south africa as anticipated per capita energy use has a significant long run effect in raising the country s co 2 emission levels yet surprisingly higher levels of trade for the country act to reduce these emissions granger causality tests confirm the existence of a positive bidirectional relationship between per capita energy use and co 2 emissions whilst the study also finds positive bidirectional causality between trade and income per capita and between trade and per capita energy use it appears however that trade liberalisation in south africa has not contributed to a long run growth in pollution intensive activities nor higher emission levels

mobilizing private finance for low carbon innovation a systematic review of barriers and solutions this paper analyses the field of innovation studies regarding barriers to low carbon innovation and consequences for finance investment and divestment and contributes to a more holistic understanding of the underlying mechanisms a combination of technological barriers combined with economic barriers institutional and political barriers contribute to sub optimal low carbon investment all along the innovation cycle policy makers need to take a systemic approach to enable the redirection of diverse private financial sources instruments range from cutting dirty r d subsidies and support for clean technology innovation and diffusion levelling the institutional playing field and making risks of high carbon and low carbon technologies transparent to providing a consistent but adaptive long term transition strategy this would allow financiers to gradually shift their investments away from high carbon mainstream markets and scale low carbon technology niche markets however financiers also need to sharpen their competencies with regard to new clean technologies and markets

advanced solar r d combining economic analysis with expert elicitations to inform climate policy the relationship between r d investments and technical change is inherently uncertain in this paper we combine economics and decision analysis to incorporate the uncertainty of technical change into climate change policy analysis we present the results of an expert elicitation on the prospects for technical change in advanced solar photovoltaics we then use the results of the expert elicitations as inputs to the minicam integrated assessment model to derive probabilistic information about the impacts of r d investments on the costs of emissions abatement

bayesian fuzzy regression discontinuity analysis and returns to compulsory schooling summary this paper is concerned with the use of a bayesian approach to fuzzy regression discontinuity rd designs for understanding the returns to education the discussion is motivated by the change in government policy in the uk in april of 1947 when the minimum school leaving age was raised from 14 to 15 a change that had a discontinuous impact on the probability of leaving school at age 14 for cohorts who turned 14 around the time of the policy change we develop a bayesian fuzzy rd framework that allows us to take advantage of this discontinuity to calculate the effect of an additional year of education on subsequent log earnings for the latent class of subjects that complied with the policy change we illustrate this approach with a new dataset composed from the uk general household surveys copyright 2015 john wiley sons ltd

capital asset pricing models revisited evidence from errors in variables abstract this paper revisits an instrumental variable technique to minimize the errors in variables problem in capital asset pricing models our results show that dagenais and dagenais dagenais m g dagenais d l 1997 higher moment estimators for linear regression models with errors in the variables journal of econometrics 76 193 221 estimator based on higher moments is well suited to correct for the bias induced by measurement errors in both the capm and the three factor model of fama and french fama e f french k r 1997 industry costs of equity journal of financial economics 43 153 193

the raising of the school leaving age returns in later life using the recently released uk household longitudinal study we examine whether the raising of the school leaving age in 1972 had a permanent impact on earnings for individuals in their early 50s

equal worth equal opportunities pay and promotion in an internal labour market using personnel data from a large financial company the authors find some evidence that women have to meet more stringent criteria than men for promotion but that much of the difference between men and women s attainment is due to their attributes for example lack of work experience is more important quantitatively than glass ceilings in preventing the preferment of women the authors data also suggest that the differential barriers confronting women are greatest at the lower end of the job ladder and that men and women may receive equal treatment once senior grades have been reached copyright 1996 by royal economic society

dynamic portfolio selection of npd programs using marginal returns selecting program portfolios within a budget constraint is an important challenge in the management of new product development npd optimal portfolios are difficult to define because of the combinatorial complexity of project combinations however at the aggregate level of the strategic allocation of resources across product lines investment in a program is not an all or nothing decision but can beadjusted resulting in a higher or lower program benefit e g higher or lower quality in some cases resources can be adjusted even for individual projects with this insight one can usemarginal analysis to optimally allocate the scarce budget this article develops a dynamic model of resource allocation taking into account multiple interacting factors such as independent or correlated uncertain market payoffs that change over time increasing or decreasing returns from the npd investment carry over of the investment benefit over multiple periods and interactions across market segments we characterize optimal policies in closed form and derive qualitative decision rules for managers

political rents and voter information in search equilibrium abstract political parties committed to grab rents may run for election and even win if citizens are uninformed but how is the political equilibrium affected if citizens can mitigate this information problem through costly information search we propose a political equilibrium theory with endogenous information search and turnout we show that i the political equilibrium generates political uncertainty characterized by a distribution of rent policies i i the expectation of this rent distribution is inversely u shaped in the information search cost i i i turnout is lower and rents are higher the more proportional is the electoral system

abstention ideology and information acquisition we consider an election in which each voter can collect information of different precision voters have asymmetric information and preferences that vary both in terms of ideology and intensity in contrast to all other models of voting with endogenous information in equilibrium voters collect information of different qualities we show that information and abstention are not necessarily negatively correlated some voters are more likely to abstain the more informed they are we also discuss the manner in which incentives to acquire information are non monotonic in terms of both ideology and the level of intensity

estimating the variance of wages in the presence of selection and unobserved heterogeneity abstract identification of potential wage distributions by education is important to the study of the causal links between education inequality and uncertainty potential wage inequality within an educational group that is the variance in wages if all workers had the same education exceeds the observed statistics because self selected education truncates wage distributions decomposing potential wage inequality into heterogeneity known to the agent making the educational choice and uncertainty unknown to the agent suggests that wage uncertainty does not necessarily rise with education it is unobserved heterogeneity not uncertainty that explains the observed relationship between college graduation and higher wage inequality

the swing voter s curse the authors analyze two candidate elections in which some voters are uncertain about the realization of a state variable that affects the utility of all voters they demonstrate the existence of a swing voter s curse less informed indifferent voters strictly prefer to abstain rather than vote for either candidate even when voting is costless the swing voter s curse leads to the equilibrium result that a substantial fraction of the electorate will abstain even though all abstainers strictly prefer voting for one candidate over voting for another copyright 1996 by american economic association

estimating average and local average treatment effects of education when compulsory schooling laws really matter the change to the minimum school leaving age in the united kingdom from 14 to 15 had a powerful and immediate effect that redirected almost half the population of 14 year olds in the mid twentieth century to stay in school for one more year the magnitude of this impact provides a rare opportunity to a estimate local average treatment effects late of high school that come close to population average treatment effects ate and b estimate returns to education using a regression discontinuity design instead of previous estimates that rely on difference in differences methodology or relatively weak instruments comparing late estimates for the united states and canada where very few students were affected by compulsory school laws to the united kingdom estimates provides a test as to whether instrumental variables iv returns to schooling often exceed ordinary least squares ols because gains are high only for small and peculiar groups among the more general population i find instead that the benefits from compulsory schooling are very large whether these laws have an impact on a majority or minority of those exposed

the political economy of intergenerational income mobility the intergenerational elasticity of income is considered one of the best measures of the degree to which a society gives equal opportunity to its members while much research has been devoted to measuring this reduced form parameter less is known about its underlying structural determinants using a model with exogenous talent endowments endogenous parental investment in children and endogenous redistributive institutions we identify the structural parameters that govern the intergenerational elasticity of income the model clarifies how the interaction between private and collective decisions determines the equilibrium level of social mobility two societies with similar economic and biological fundamentals may have vastly different degrees of intergenerational mobility depending on their political institutions we offer empirical evidence in line with the predictions of the model we conclude that international comparisons of intergenerational elasticity of income are not particularly informative about fairness without taking into account differences in politico economic institutions jel e24 j62 j68 p16

endogenous technological change in climate change modelling this article investigates the impact on optimal co2 abatement and carbon tax levels of introducing endogenous technological change in a macroeconomic model of climate change we analyse technological change as a function of cumulative capacity as incorporated recently in energy systems models our calculations confirm that including endogenous innovation implies earlier emission reduction to meet atmospheric carbon concentration constraints however the effect is stronger than suggested in the literature moreover the development of non fossil energy technologies constitutes the most important opportunity for emission reductions optimal carbon tax levels reducing fossil energy use are lower than usually advocated