the changing time series properties of earnings cash flows and accruals has financial reporting become more conservative abstract this paper documents changes in the patterns of earnings cash flows and accruals over the last four decades in the absence of a generally accepted definition of conservatism a number of measures of reporting conservatism are identified and examined these measures rely on the accumulation of nonoperating accruals the timeliness of earnings with respect to bad and good news characteristics of the earnings distribution and the market to book ratio the patterns are consistent with an increase in conservative financial reporting over time the findings have implications for accounting standard setting regulation of financial information and financial statement analysis

using a policy mix for pollution control a review of economic literature this article provides a review of economic studies analyzing the use of multiple policies a socalled policy mix to cope with single pollution problems to guide and structure the review an analytical framework is developed and applied the framework integrates transaction costs into the analysis of pollution problems and policies to overcome them moreover it understands a pollution externality not only as a market failure but more generally as the failure of private governance structures based on this insight two rationales for using a policy mix are identified first a policy mix may help to correct for multiple reinforcing failures of private governance structures such as pollution externalities and technological spillovers second a policy mix can be employed if the implementation of single first best policies brings about high transaction costs e g when marginal pollution damages are heterogeneous or polluters are unlikely to comply with the policy for each rationale the relevant literature is presented based on the review avenues for future research are identified

economic efficiency effects of alternative policies for reducing waste disposal abstract reducing the amount of municipal solid waste that is disposed of has become an important policy goal previous research argued that a virgin material tax offered an efficient method of meeting this goal and it continues to be considered as a policy option today this paper demonstrates however that a virgin material tax is not an efficient method of reducing waste but that an alternative policy a combined disposal tax and reuse subsidy is the combined disposal tax and reuse subsidy is theoretically consistent with unit based household charges for waste disposal but may have advantages in some situations

scrap prices waste and recycling policy this study examines the effect of waste and recycling policy on scrap prices and the importance of scrap price feedbacks as a determinant of policy costs price effects and direct and indirect channels of waste reduction are decomposed for deposit refund advance disposal fee and recycling subsidies scrap price feedbacks decrease the cost of advance disposal fees increase the cost of recycling subsidies and have an ambiguous effect on the cost of deposit refund simulation analysis finds that scrap price feedbacks substantially affect the costs of the policies and alter the ranking of instruments jel q53 q58

sorting and the output loss due to search frictions we analyze a general search model with on the job search ojs and sorting of heterogeneous workers into heterogeneous jobs for given values of nonmarket time the relative efficiency of ojs and the amount of search frictions we derive a simple relationship between the unemployment rate mismatch and wage dispersion we estimate the latter two from standard micro data our methodology accounts for measurement error which is crucial to distinguish true from spurious mismatch and wage dispersion we find that without frictions output would be about 9 5 higher if firms can commit to pay wages as a function of match quality and 15 5 higher if they cannot noncommitment leads to a business stealing externality which causes a 5 5 drop in output

the u s technology frontier in caselli and coleman 2000 we developed a framework that separately identifies the efficiency units embodied in unskilled labor skilled labor and capital in a country s aggregate production function applying that framework to cross country data we showed that countries where unskilled labor is relatively abundant are those with the most efficient unskilled workers while countries where skilled labor and capital are abundant are the most efficient users of these inputs we interpreted these findings as evidence of appropriatetechnology adoption in each country firms choose from a menu of technologies different technologies imply different combinations of values for the efficiency units embodied in the three factors of production in each country the technology is chosen that makes the most of the most abundant factors in this paper we apply the same framework to time series data from the united states over the period 1963 1992 we find that throughout this period the efficiencies of skilled labor and capital have risen the efficiency of unskilled labor has risen in tandem with those of the other factors in the early part of the sample but surprisingly it has been falling since sometime in the 1970 s the exact turning point depends somewhat on some parametric assumptions in analogy with the cross country evidence these changes are closely associated with changes in the relative abundance of skilled labor and capital which increased rather dramatically in this sense the recent history of technologies in use by u s firms may mimic the choice of technologies around the world today as skills and capital become more abundant technologies are chosen that maximize the efficiency of these inputs as we discuss below however in the u s context the converse story relative labor supplies adjusting to exogenous changes in technology is also consistent with the data besides its relevance to models of technology adoption this evidence also sheds new light on the widely documented recent increase in the skilled wage premium in the united states lawrence f katz and kevin m murphy 1992 and david h autor et al 1998 used the relative wage and the relative labor supply series to show that the efficiency of unskilled labor relative to skilled labor must have declined over time our framework allows us to go further and show that indeed the absolute efficiency of unskilled labor has fallen after 1970 while the efficiency of skilled labor and capital have increased a similar result was obtained with different techniques by marta ruiz arranz 2001

does schooling cause growth a number of economists find that growth and schooling are highly correlated across countries a model is examined in which the ability to build on the human capital of one s elders plays an important role in linking growth to schooling the model is calibrated to quantify the strength of the effect of schooling on growth by using evidence from the labor literature on mincerian returns to education the upshot is that the impact of schooling on growth explains less than one third of the empirical cross country relationship the ability of reverse causality to explain this empirical relationship is also investigated

garbage recycling and illicit burning or dumping abstract with garbage and recycling as the only two disposal options we confirm prior results that the optimal curbside fee for garbage collection equals the direct resource cost plus external environment cost when illicit burning or dumping is a third disposal option that cannot be taxed directly the optimal curbside tax on garbage changes sign the optimal fee structure is a deposit refund system a tax on all output plus a rebate on proper disposal through either recycling or garbage collection the output tax helps achieve the first best allocation even though it affects the choice between consumption and untaxed leisure

upstream pollution downstream waste disposal and the design of comprehensive environmental policies abstract many policymakers are shifting their focus from media specific pollution problems to product specific life cycle environmental problems in this paper we develop a model of production and consumption that incorporates life cycle externalities and use it to solve for alternative policies to achieve a social optimum in general we find that no single instrument can solve multiple problems contrary to what some observers have suggested however we find that there are alternative ways of reaching the social optimum we also discover that an integrated approach to policy appears to be important no matter what policy options are adopted and finally we find that there is only a limited role for so called product life cycle assessments

an international comparison of capital structure and debt maturity choices this study examines how the institutional environment influences capital structure and debt maturity choices of firms in 39 developed and developing countries we find that a country s legal and tax system corruption and the preferences of capital suppliers explain a significant portion of the variation in leverage and debt maturity ratios specifically firms in more corrupt countries and those with weaker laws tend to use more debt especially short term debt explicit bankruptcy codes and deposit insurance are associated with higher leverage and more long term debt more debt is used in countries where there is a greater tax gain from leverage

a comparison of public policies for lead recycling policies that encourage recycling may be used to reduce environmental costs from waste disposal because direct restrictions on disposal are difficult to enforce four recycling policies have been advanced i taxes on the use of virgin materials ii deposit refund programs iii subsidies to recycled material production and iv recycled content standards in this article i analyze the structure of these policies and their cost effectiveness in achieving reductions in disposal i then examine the policies in the empirical context of the recycling of lead from automobile batteries in order to calculate the effects of recycling programs i estimate the elasticities for primary and secondary lead supply and demand my results suggest that price based policy mechanisms can be successful in increasing lead recovery and that the difference in efficiency between the four approaches is similar

the pecking order debt capacity and information asymmetry abstract we quantify the empirical relevance of the pecking order hypothesis using a novel empirical model and testing strategy that addresses statistical power concerns with previous tests while the classificatory ability of the pecking order varies significantly depending on whether one interprets the hypothesis in a strict or liberal e g modified pecking order manner the pecking order is never able to accurately classify more than half of the observed financing decisions however when we expand the model to incorporate factors typically attributed to alternative theories the predictive accuracy of the model increases dramatically accurately classifying over 80 of the observed debt and equity issuances finally we show that what little pecking order behavior can be found in the data is driven more by incentive conflicts as opposed to information asymmetry

financing preferences evidence from the korean market we investigate the financing decisions of korean firms during the period of 1996 2015 korean firms follow a matching strategy for funding their cash needs cash inflows from investing activities a

schooling data technological diffusion and the neoclassical model this research was supported by the spanish ministry of science and technology through cicyt grants sec99 1189 and sec99 0820 and by the spanish ministry of finance and fundacion caixa galicia

a new data set measuring income inequality this article presents a new data set on inequality in the distribution of income the authors explain the criteria they applied in selecting data on gini coefficients and on individual quintile groups income shares comparison of the new data set with existing compilations reveals that the data assembled here represent an improvement in quality and a significant expansion in coverage although differences in the definition of the underlying data might still affect inter temporal and international comparability based on this new data set the authors do not find a systematic link between growth and changes in aggregate inequality they do find a strong positive relationship between growth and reduction of poverty

trade offs in designing markets with multiple objectives abstract this paper explores some of the problems involved in designing markets with multiple objectives the first part of the paper considers the issue of how such markets are designed in theory while the second part reviews some evidence on actual applications in the field of air pollution control

green consumption under misperceived prices an application to active transportation we propose a consumption model that captures the impact that perceived price ambiguities may have upon decision making in green markets in general and in active transportation markets in particular the basic intuition for the model is that a consumer who may be misperceiving the price of the green good the active transportation mode would be willing to pay a positive amount from her income in the current period to resolve the misperception going forward we posit that the basis for the price misperception in the active transportation context is misperception of the relative risks involved in taking that mode the compensating variation that aligns perceived and objective risk is derived we show how raising green consumption via price misperception correction can be superior to traditional economic policy instruments the results shed light on the more general family of situations in which agents may consistently misperceive aspects of the decision environment

revenue sharing coordination in reverse logistics a reverse supply chain as a post consumption activity aims at extracting value from products at the end of their life cycle it could be comprised of reusing refurbishing remanufacturing and recycling activities in this paper we revisit the issue of revenue sharing in reverse supply chains to formulate the decision problems of coordinating parties manufacturer and retailer the coordination is formed in a dynamic setting where a feedback relationship exists between the return incentive policy of the retailer and the revenue sharing incentive strategy of the manufacturer to model this process we have adopted the use of a system dynamics sd approach sd is well suited for studying the behavior of complex systems over time and where internal feedbacks and delays exist we first identify pareto optimal solutions for individual players and from environmental perspectives of landfill diversion and carbon offset we then focus on revenue sharing as a widely practiced coordination scheme in reverse supply chains it resembles a leader follower stackelberg strategic decision making game with an equilibrium solution that yields lower performance for environmental criteria in this context we investigate if how a revenue sharing mechanism can be coordinated to achieve a higher environmental performance

law finance and firm growth we investigate how differences in legal and financial systems affect firms use of external financing to fund growth we show that in countries whose legal systems score high on an efficiency index a greater proportion of firms use long term external financing an active though not necessarily large stock market and a large banking sector are also associated with externally financed firm growth the increased reliance on external financing occurs in part because established firms in countries with well functioning institutions have lower profit rates government subsidies to industry do not increase the proportion of firms relying on external financing the corporate finance literature suggests that market imperfections caused by conflicts of interest and informational asymmetries between corporate insiders and investors constrain firms in their ability to fund investment projects the magnitude of these imperfections depends in part on the effectiveness of the legal and financial systems because these systems differ across countries the literature implies that there should exist systematic cross country differences in firms ability to obtain external capital to finance investment in this paper we examine whether the underdevelopment of legal and financial systems does prevent firms in some countries from investing in potentially profitable growth opportunities in particular we focus on the use of long term debt or external equity to fund growth see our earlier work demirgut kunt and maksimovic 1996a which compares firms financial structures in developed and developing countries and finds the greatest difference to be in the provision of long term credit we estimate a financial planning model to obtain the maximum growth rate that each firm in our thirty country sample could attain without access to long term financing we then compare these predicted growth rates to growth rates realized by firms in countries with differing degrees of development in their legal and financial systems our approach enables us to identify specific characteristics of the legal and financial systems that are associated with long term financing of firm growth thus we provide a micro level test of the hypoth

curbside recycling in the presence of alternatives we measure the extent to which curbside access affects quantity recycled we use novel data to distinguish between new recycling and material diverted from other recycling modes we find that the marginal impact of expanding curbside programs on total recycled quantities is small in part because curbside programs significantly cannibalize returns from drop off recycling centers failure to account for cannibalization from other modes may substantially over estimate the benefits of curbside programs we conclude with simple cost effectiveness comparisons results suggest that incremental expansion of curbside access may not be cost effective

promise and pitfalls in the use of secondary data sets income inequality in oecd countries as a case study this paper examines the role of secondary data sets in empirical economic research taking the field of income distribution as a case study we illustrate problems faced by users of secondary statistics showing how both cross country comparisons and time series analysis can depend sensitively on the choice of data after describing the genealogy of secondary data sets on income inequality we consider the main methodological issues and discuss their implications for comparisons of income inequality across oecd countries and over time the lessons to be drawn for the construction and use of secondary data sets are summarized at the end of the paper

educational expansion and the kuznets effect the objective in this note is to show the change in wage dispersion in response to increases in the relative supply of educated workers in two low income countries we also measure the relative contributions to that change of its two components the effect of the educational expansion on the educational composition of the labor force holding the educational structure of wages constant and the resultant compression of that structure holding composition constant the paper s analysis is based on three precisely comparable surveys of wage employees conducted in tanzania in 1971 and 1980 and in kenya in 1980

measurement error in education and growth regressions the use of the perpetual inventory method for the construction of education data per country leads to systematic measurement error this paper analyzes its effect on growth regressions we suggest a methodology for correcting this error the standard attenuation bias suggests that using these corrected data would lead to a higher coefficient our regressions reveal the opposite we discuss why this is the case

greenhouse gas emissions waste and recycling policy abstract this paper examines least cost policies for waste reduction incorporating upstream greenhouse gas externalities associated with the production of consumption goods from various materials in particular we decompose the effect of deposit refund advance disposal fees and recycling subsidies on upstream greenhouse gas emissions we find that the benefits of reducing greenhouse gas emissions are of the same order as or larger than the benefits of reducing solid waste disposal implying larger optimal total waste reduction than previous studies furthermore the least cost intervention levels will be material specific and vary substantially across materials finally despite the reductions in emissions implied by increased recycling rates direct recycling subsidies are more costly and generate less emissions reductions than a deposit refund or advance disposal fee

efficient implementation of collective extended producer responsibility legislation extended producer responsibility epr is a policy tool that holds producers financially responsible for the post use collection recycling and disposal of their products many epr implementations are collective a large collection and recycling network crn handles multiple producers products in order to benefit from scale and scope economies the total cost is then allocated to producers based on metrics such as their return shares by weight such weight based proportional allocation mechanisms are criticized in practice for not taking into account the heterogeneity in the costs imposed by different producers products the consequence is cost allocations that impose higher costs on certain producer groups than they can achieve independently this may lead some producers to break away from collective systems resulting in fragmented systems with higher total cost yet cost efficiency is a key legislative and producer concern to address this concern this paper develops cost allocation mechanisms that

does microfinance reduce income inequality this study addresses the question whether participation of the poor in microfinance contributes to reducing a country s level of income inequality using data from 70 developing countries we show that higher levels of microfinance participation are indeed associated with a reduction of the income gap between rich and poor people we also show however that the effects of microfinance on reducing income inequality are relatively small the results of this study add to the discussion on the impact of microfinance on poverty by showing that although access to microfinance does seem to improve the relative income position of the poor this improvement is modest which is probably because the use of microfinance is generally small as compared to the size of the economy of the countries in our sample microfinance should therefore not be seen as a panacea for bringing down income inequality in a significant way

extended producer responsibility instruments and innovation in eco design an exploration through a simulation model abstract this paper presents an agent based simulation model that models both economical and physical relations between firms recyclers and consumers this framework allows an investigation into the connection between physical environmental variables waste flows virgin material flows and economic decisions of agents in the product chain i e firms innovation strategies consumers choices and development of recycling activities the paper highlights the value of using agent based modeling as an operational tool to investigate the effect of waste prevention policy on economic and technological decisions of agents we focus on three types of extended producer responsibility epr instruments which are recycling fees tax subsidy and norms the simulation results show that the impact of each instrument depends on the policy design in particular on the level of stringency and on the reward system which is implemented we show that only tax subsidy systems and stringent norms can lead to radical innovations and to significant changes in product designs in the case of tax subsidy the impact relies more on an innovation effect while in the case of norm it mainly relies on a selection effect

optimal policies for solid waste disposal taxes subsidies and standards abstract pricing trash collection and disposal services can be politically unpopular and may lead to increased illegal disposal of trash several studies have shown that deposit refund systems can act like disposal charges without the illegal disposal problem and thus can generate an optimal amount of solid waste disposal we assess the efficiency implications of an alternative policy currently in use in some states in the u s and considered at the federal level recycled content standards these are requirements that a certain fraction of total material use in production be comprised of secondary materials we find that such standards by themselves cannot generate the optimal amount of disposal but must be combined with additional taxes on both the final product and other inputs to production moreover the information requirements for setting the optimal standards and accompanying taxes are high the deposit refund approach would be preferred in most cases

education and income growth implications for cross country inequality this paper examines the extent to which patterns of human capital convergence can account for observed patterns of income inequality between countries to do this i decompose national income into three components one due to education levels one reflecting the return to education and a residual component i then examine in turn the contribution of each of them to changes in income dispersion among the developed countries convergence in education levels has resulted in a reduction in income dispersion however for the world as a whole incomes have diverged despite substantial convergence in education levels this is a result of increases in the return to education that favor the developed countries at the expense of the less developed countries

corporate behavior in adjusting to capital structure and dividend targets an econometric study this study of financing decisions by u s corporations examines the issuance of long term debt issuance of short term debt maintenance of corporate liquidity issuance of new equity and payment of dividends given costs and imperfections inherent in markets a firm s financial behavior is characterized as partial adjustment to long run financial targets individual firm data are used so that speeds of adjustment are allowed to vary by company and over time the results suggest that financial decisions are interdependent and that firm size interest rate conditions and stock price levels affect speeds of adjustment this study of financing decisions by u s corporations examines the issuance of long term debt short term debt and equity the maintenance of corporate liquidity and the payment of dividends the firm s financial behavior is characterized as partial adjustment to long run financial targets and individual firm data 1966 1978 are used to estimate firm specific time varying speeds of adjustment the results suggest that financial decisions are interdependent and that firm size interest rate conditions and stock price levels affect speeds of adjustment also the estimated coefficients are more plausible than the very small taggart 28 or very large spies 26 values found in earlier studies section i of the paper introduces the general model in section ii a tractable empirical model is developed section iii presents the data to be used in the study and discusses econometric issues in section iv results and conclusions are offered

identifying human capital externalities theory with applications the identification of aggregate human capital externalities is still not fully understood the existing mincerian approach confounds positive externalities with wage changes due to a downward sloping demand curve for human capital as a result the mincerian approach yields positive externalities even when wages equal marginal social products we propose an approach that identifies human capital externalities whether or not aggregate demand for human capital slopes downward another advantage of our approach is that it does not require estimates of the individual return to human capital applications to u s cities and states between 1970 and 1990 yield no evidence of significant average schooling externalities copyright 2006 wiley blackwell

the wage distribution in a model of the assignment of skills to jobs this paper discusses a general equilibrium model of the assignment of heterogeneous workers to heterogeneous jobs both jobs and workers are measured along a continuous one dimensional scale the c

comparative advantage relative wages and the accumulation of human capital i apply ricardo s principle of comparative advantage to a theory of factor substitutability in a model with a continuum of worker and job types highly skilled workers have a comparative advantage in complex jobs the model satisfies the distance dependent elasticity of substitution dides characteristic substitutability between types declines with their skill distance i analyze changes in relative wages due to human capital accumulation the concept of a complexity dispersion parameter or compression elasticity is introduced empirical studies suggest its value to be equal to two a 1 percent increase in the stock of human capital reduces the mincerian return by 2 percent

can downstream waste disposal policies encourage upstream design for environment design for environment takes place when firms explicitly incorporate environmental issues in their product design and manufacturing decisions joseph fiksel 1996 to reduce waste associated with consumer products for example firms can reduce product weight including the amount of packaging that comes with a product and make products easier and less costly to recycle the latter can be accomplished by changing the type of material used in a product avoiding mixing of materials in a single product coding and labeling when different materials are used and designing for ease of disassembly u s congress office of technology assessment 1992 fiksel 1996 an important debate centers around the question of whether design for environment dfe needs to be explicitly targeted using policy instruments focused upstream on producers or whether downstream instruments send sufficient signals back upstream one important downstream instrument is a disposal fee i e charging households a price per pound per bag or per can for their trash many observers feel that downstream instruments do not send appropriate signals back upstream some economists and others have suggested on the other hand that disposal fees can in theory send signals upstream to producers karen palmer and walls 1998 we find that disposal fees provide incentives for efficient dfe only when there is a fully functioning recycling market i e only when recyclers pay households a price for each of their recyclable items and that price varies with the degree of product recyclability in the real world transactions costs of paying households for each individual item recycled would be prohibitively high in a more realistic setting in which households may place some items in a recycling bin but are not paid for doing so a disposal fee by itself will not yield a social optimum it encourages households to place items in the bin but all items allowed in the bin are of equal value to the household i e there is no reason to prefer an easily recyclable aluminum can to a difficult to recycle plastic milk jug this means that there is no signal to producers to make products more recyclable if the government can set product taxes that vary with product recyclability the social optimum can be restored but this option is not practicable 2 we argue that the infeasibility of i paying households for recycling and ii taxing products according to their recyclability means that a first best outcome is no longer attainable instead we set up a constrained second best optimum and solve for policy instruments that achieve this outcome we find that a disposal school of economics and finance victoria university of wellington wellington new zealand walls is also a university fellow with resources for the future washington dc the helpful comments of karen palmer don fullerton and hilary sigman are greatlv appreciated 1 manufacturer take back requirements such as germany s well known packaging take back law were developed at least in part as a way to encourage dfe see www oecd org env epr index htm for updates from a series of oecd workshops held in 1997 1999 on the broader topic of extended producer responsibility in practice individual german producers do not actually take back their own products at end of life they have formed a consortium that arranges to collect members waste from households marked with a green dot and recycle it we do not address take back mandates in this paper 2 in calcott and walls 1999 we derive these taxes don fullerton and wenbo wu 1998 show that a direct subsidy to recyclability combined with other instruments can yield a social optimum this subsidy depends on production function parameters thus if firms differ the subsidy would vary across firms more i mportantly observing and measuring recyclability to determine subsidy payments would be virtually impossible

the two part instrument in a second best world abstract standard pigovian tax theory has been extended in two directions first many polluting activities are difficult to tax because they are not market transactions and so recent papers have shown that the same effects can be achieved by use of a two part instrument 2pi a tax on output or income and a subsidy for clean alternatives to pollution it is a generalization of a deposit refund system drs second a different literature concerns the second best pollution tax in the presence of other tax distortions here we combine the two extensions by looking at the second best 2pi when government needs revenue is the deposit larger and the rebate smaller we find explicit solutions for each tax and subsidy in a general equilibrium model with other tax distortions and we compare these to the rates in a first best model the tax subsidy combination is explained in terms of a tax effect an environmental effect and a revenue effect the model allows for flexible interpretation to show various applications of the 2pi we also discuss important caveats

impact of government financial intervention on competition among green supply chains abstract this work analyzes the effects of governmental financial intervention on green supply chain competition using a three stage game theoretic model nash equilibrium solutions for governmental and chain member decisions are derived analytical results suggest that the government should adopt green taxation and subsidization to ensure that green profit attributed to green product production is non negative strategically low wholesale price strategies are suggested to recycled component suppliers under green subsidization to stimulate manufacturers intention of green product production under green taxation numerical results reveal that under equilibrium conditions social welfare and chain based profits improve by 27 8 and 306 6 respectively compared with the case without financial intervention

feed in subsidies taxation and inefficient entry we study energy markets with dirty production and lumpy entry costs of clean production renewables for intermediate entry costs markets yield inefficient production and inefficient entry a mix of three popular regulatory instruments polluter taxation feed in subsidies for renewables and consumption taxation cannot correct these market failures for larger entry costs the instruments are imperfect because they affect marginal incentives whereas entry is a lumpy fixed cost problem whenever the first best is implementable feed in subsidies and consumption taxes are redundant the second best requires feed in subsidies or consumption taxes in addition to a pollution tax and overshoots first best levels given production levels the instruments do not affect the regulator s budget

long run substitutability between more and less educated workers evidence from u s states 1950 1990 we estimate the aggregate long run elasticity of substitution between more educated workers and less educated workers the slope of the inverse demand curve for more relative to less educated workers at the u s state level our data come from the five 1950 1990 decennial censuses our empirical approach allows for state and time fixed effects and relies on time and state dependent child labor and compulsory school attendance laws as instruments for endogenous changes in the relative supply of more educated workers we find the aggregate long run elasticity of substitution between more and less educated workers to be around 1 5

education growth and income inequality estimates of the effect of education on gdp the social return have been hard to reconcile with micro evidence on the private return to schooling we present a simple explanation combining two ideas imperfect substitution and endogenous skill biased technological progress and use cross country panel data on inequality and gdp to test these ideas a one year increase in the level of education reduces the private return by 2 percentage points consistent with katz murphy s 1992 elasticity of substitution we find no evidence for reversal of this initial effect as in acemoglu 2002 in the short run the social return equals the private return

factors influencing willingness to accept different waste management policies empirical evidence from the european union abstract improving waste management strategies with more collaborative participation and responsibility of different public and private agents is a matter of increasing concern for academia and policy makers based on data from 28 european countries the present study unlike other previous studies analyzing the influence of individual drivers for waste generation or recycling evaluates different options for waste management government based fair consumer and producer responsibility for this the influence of individual and socio demographic characteristics age gender education level and occupational status contextual variables rural or urban country of origin and the environmental awareness of 23 976 individuals are considered being a woman being well educated having a good job and living in a rural or small town increase the probability of being a fair consumer while men and people living in a large town are more willing to entrust this responsibility to firms the government based solution is only chosen by low educated people finally individuals with the highest environmental awareness and effort prefer to pay while those who are less environmentally conscious prefer government action the findings show that factors explaining individual acceptance of these different waste management policies wmp are essential for implementing proactive and preventive approaches to enhance responsibility and involvement of all stakeholder groups consumers firms and institutions

skill biased technological change and the business cycle over the past two decades technological progress in the united states has been biased towards skilled labor what does this imply for business cycles we construct a quarterly skill premium from the cps and use it to identify skill biased technology shocks in a var with long run restrictions hours fall in response to skill biased technology shocks indicating that at least part of the technology induced fall in total hours is due to a compositional shift in labor demand investment specific technology shocks reduce the skill premium indicating that capital and skill are not complementary in aggregate production

returns to investment in education a global update the author updates compilations of rate of return estimates to investment in education published since 1985 and discusses methodological issues surrounding those estimates some key patterns among the three main levels of education primary education continues to exhibit the highest social profitability in all world regions private returns are considerably higher than social returns because of the public subsidization of education the degree of public subsidy increases with the level of education which is regressive social and private returns at all levels generally decline by the level of a country s per capita income overall the returns to female education are higher than those to male education but at individual levels of education the pattern is more mixed the returns to the academic secondary school track are higher than the vocational track since unit cost of vocational education is much higher and the returns for those who work in the private competitive sector of the economy are higher than in the public noncompetitive sector and the returns in the self employment unregulated sector of the economy are higher than in the dependent employment sector controversies in the literature are discussed in the light of the new evidence the undisputable and universal positive correlation between education and earnings can be interpreted in many ways the causation issue on whether education really affects earnings can be answered only with experimental data generated by randomly exposing different people to various amounts of education given the fact that moral and pragmatic considerations prevent the generation of such pure data researchers have to make do with indirect inferences or natural experiments some have been attempted the author looks at the research on overeducation or surplus schooling the conclusions reinforce earlier patterns they confirm that primary education continues to be the number one investment priority in developing countries they also show that educating females is marginally more profitable than educating males that the academic secondary school curriculum is a better investment than the technical vocational tract and that the returns to education obey the same rules as investment in conventional capital that is they decline as investment is expanded