housing market responses to transaction taxes evidence from notches and stimulus in the uk we investigate housing market responses to transaction taxes using administrative data on all property transactions in the u k from 2004 to 2012 combined with quasi experimental variation from tax notches and tax stimulus we present two main findings first transaction taxes are highly distortionary across a range of margins causing large distortions to the price volume and timing of property transactions secondly temporary transaction tax cuts are an enormously effective form of fiscal stimulus a temporary elimination of a 1 transaction tax increased housing market activity by 20 in the short run due to both timing and extensive responses and less than half of the stimulus effect was reversed after the tax was reintroduced due to re timing because of the complementarities between moving house and consumer spending these stimulus effects translate into extra spending per dollar of tax cut equal to about 1 we interpret our empirical findings in the context of a housing model with downpayment constraints in which leverage amplifies the effects of transaction taxes

distortionary taxes and the provision of public goods economists have long been concerned with finding an efficient level of public expenditure the classic statement of the problem was given by paul samuelson 1954 an optimal level of expenditure is where the sum of the marginal rates of substitution between the public good and a reference good equals the marginal rate of transformation between the public good and the reference good mrs mrt however samuelson s formula assumes that all of the revenue needed to finance public goods can be raised with lump sum taxes since this is not generally possible the formula must be modified to account for the distortionary effects of the tax system an appropriate modification is to multiply the cost side of the equation by a term that is commonly called the marginal cost of public funds mcf in the case of samuelson s formula where government is entirely financed with lump sum taxes the mcf would be exactly 1 0 in the traditional view of economists distortionary taxes cause the mcf to be greater than one thus raising the cost of providing public goods in this paper we discuss some cases where the mcf may be less than one we will illustrate this possibility using numerical examples for labor taxes

health care spending in the us vs uk the roles of medical education costs malpractice risk and defensive medicine abstract we analyze how two key factors contribute to the high cost of healthcare in the us relative to the uk i the higher private cost of medical education and ii the higher risk of malpractice litigation to assess the role of these factors we formulate calibrate and simulate an equilibrium model of physician wages and the supply of medical graduates work hours and treatment decisions of practicing physicians and malpractice risk and malpractice insurance pricing consistent with prior work we find direct costs of malpractice fines and insurance explain little of the high cost of healthcare in the us however the high private cost of medical education interacts with high malpractice risk in an interesting way it leads doctors to i demand high wages and ii use excessive diagnostics to mitigate risk defensive medicine the agency problem that arises because patients cannot judge the efficacy of tests allows them to be over prescribed together these factors increase costs far more than direct malpractice costs specifically physician salaries plus diagnostic tests comprise 4 04 of gdp in the us compared to only 2 3 in the uk the mechanisms emphasized in our model can largely explain the difference our policy simulations imply that more generous medical education subsidies would lead to both improved patient welfare and reduced overall health care costs in the us system a pareto improvement we also find policies to i reduce malpractice risk or ii induce doctors to internalize a small part of diagnostic costs would have similar efficacious effects

progressive taxation and the social marginal cost of public funds abstract this paper describes the calculation of the social marginal cost of public funds smcf for a progressive tax system which distorts individuals labour supply decisions a formula for the smcf indicates that the income and substitution effects of the labour supply response are weighted by the changes in individuals average and marginal tax rates respectively other well known formulas for the smcf are shown to be special cases of this formula the difference between this formula and the mayshar 1991 formula is shown to be due to different but equally valid ways of computing the change in the average tax rate the condition under which a marginal tax rate increase may lead to a reduction in revenues is derived

the marginal welfare cost of public funds theory and estimates abstract we derive a general analytic formula for the marginal welfare cost mwc of public funds without imposing restrictive assumptions on preferences or technologies the framework encompasses the various special cases previously considered and reconciles the disparities among the reported estimates of mwc unresolved differences in existing estimates are fully explained by appropriate interpretations of intended thought experiments and alternative assumptions about the elasticity of labor supply with respect to public spending further progress in measuring mwc requires empirical estimation of labor supply functions that include government spending as an explanatory variable

how financial incentives induce disability insurance recipients to return to work using a local randomized experiment that arises from a sharp discontinuity in disability insurance di policy in norway we provide transparent and credible identification of how financial incentives induce di recipients to return to work we find that many di recipients have considerable capacity to work that can be effectively induced by providing financial work incentives we further show that providing work incentives to di recipients may both increase their disposable income and reduce program costs our findings also suggest that targeted policies may be the most effective in encouraging di recipients to return to work

the taxation of diesel cars in belgium revisited this paper compares the current taxation of diesel and gasoline cars in belgium with the guidelines for optimal taxation we find that diesel cars are still taxed much less than gasoline cars resulting in a dominant market share for diesel cars in the car stock if the fuel tax is the main instrument to control for externalities and generate revenues the diesel excise should be much higher than the excise on gasoline for two reasons diesel is more polluting than gasoline and more importantly through the better fuel efficiency diesel cars contribute less fiscal revenues per mile

an ecological economic assessment of deregulation of international commerce under gatt this paper discusses the ecological economic implications of deregulation of trade as promoted by the general agreement on tariffs and trade gatt 1 this includes both environmental2 and socio economic factors such as standards of living and equity we outline fifteen overlapping problems with deregulation or free trade we argue that many environmental problems cannot be resolved equitably efficiently or sustainably by unregulated markets and that there is no alternative to public intervention in certain situations we repeat the 1987 brundtland commission s question of how far into international trade should regulation penetrate wced 1987 the commission s call for gatt s environmental reform 3 has not yet been heeded

evaluation of four tax reforms in the united states labor supply and welfare effects for single mothers an emerging consensus is that labor force participation is more responsive to taxes and transfers than hours worked to understand the implications of participation responses for the welfare analysis of tax reform this paper embeds this margin of labor supply in an explicit welfare theoretic framework we apply the framework to examine the welfare effects on single mothers in the united states following four tax acts passed in 1986 1990 1993 and 2001 we propose a simulation method combining features of fully structural microsimulation studies and simple deadweight loss calculations our approach accounts for the observed heterogeneity in the microdata but is simple to implement because we do not need to specify utility functions and estimate utility parameters we find that each of the four tax acts created substantial welfare gains and that the gains were concentrated almost exclusively on the participation margin our results imply that standard approaches not modeling the participation decision can make large errors

trade environment and development the issues in perspective abstract this special issue on trade and the environment brings together a number of papers that are constructively critical of the conventional economic wisdom on the topic we think that this criticism is warranted because of the decidely uncritical way in which free trade has been advocated in much of the literature and especially in policy the papers analyse the validity of the underlying assumptions on which the conventional wisdom is based and provide suggestions for ways to facilitate trade that is also adequately protective of the environment sustainability and other social values in this introductory piece we discuss trade the environment and sustainability summarizing arguments in the papers included in this issue and adding a few additional points not covered by them

compliance costs vs tax incentives why do entrepreneurs respond to size based regulations abstract this paper studies the mechanisms behind the responses of entrepreneurs to size dependent tax regulation we exploit the value added tax vat exemption threshold in finland both tax incentives remitted vat and compliance costs frequent filing of vat reports understanding the vat system etc change at this sales based threshold in a discontinuous manner we utilize variation in both the vat rate and reporting requirements to show that the large observed sales response is caused by the compliance costs of vat rather than the level of the vat rate highlighting the key role of compliance costs among small firms and entrepreneurs

measuring economic efficiency using inverse optimum weights abstract this paper provides a method to measure the traditional kaldor hicks notion of economic efficiency when taxes affect behavior in contrast to traditional unweighted surplus measuring efficiency requires weighting individual benefits or surplus by the marginal cost to the government of providing a 1 transfer at each income level these weights correspond to the solution to the inverse optimum program in the optimal tax literature they are the social planning weights that would rationalize the status quo tax schedule as optimal i estimate the weights using the universe of us income tax returns from 2012 the results suggest that measuring economic efficiency requires weighting surplus accruing to the poor roughly 1 5 2 times more than surplus accruing to the rich this is because 1 of surplus to the poor can be turned into roughly 1 5 2 of surplus to the rich by reducing the progressivity of the tax schedule following kaldor and hicks original applications i compare income distributions over time in the us and across countries the results suggest us economic growth is 15 20 lower due to increased inequality than is suggested by changes in gdp because of its higher inequality the u s is unable to replicate the income distribution of countries like austria and the netherlands despite having higher national income per capita

welfare analysis meets causal inference we describe a framework for empirical welfare analysis that uses the causal estimates of a policy s impact on net government spending this framework provides guidance for which causal effects are and are not needed for empirical welfare analysis of public policies the key ingredient is the construction of each policy s marginal value of public funds mvpf the mvpf is the ratio of beneficiaries willingness to pay for the policy to the net cost to the government we discuss how the mvpf relates to traditional welfare analysis tools such as the marginal excess burden and marginal cost of public funds we show how the mvpf can be used in practice by applying it to several canonical empirical applications from public finance labor development trade and industrial organization

towards a micro founded theory of aggregate labour supply we build a heterogeneous agents life cycle model that captures a large number of salient features of individual male labour supply over the life cycle by education both along the intensive and extensive margins the model provides an aggregation theory of individual labour supply firmly grounded on individual level micro evidence and is used to study the aggregate labour supply responses to changes in the economic environment we find that the aggregate labour supply elasticity to a transitory wage shock is 1 75 with the extensive margin accounting for 62 of the response furthermore we find that the aggregate labour supply elasticity to a permanent compensated wage change is 0 44

trade development and sustainability a critical assessment of the free trade dogma abstract mainstream economic theory argues that trade and especially free trade isbeneficial to everyone involved this fundamental idea which has the character of a dogma still plays an important role in international discussions on trade issues notably in relation to development and environment the purpose of this article is to critically assess the free trade dogma and to investigate the validity of widely used arguments concerning the relations between trade and development and between trade and environment it is argued that the trading system is not something inherently good and especially the developing countries benefits from trade have been very dubious furthermore the trading system has contributed to environmental problems in several ways e g generating undervaluation of natural resources stimulating economic growth with environmental deterioration as a consequence and magnifying and creating externalities the critical approach makes a case for reducing trade

what has been learned about labor supply in the past twenty years the main advance in the study of labor supply in the past 20 years has come in recognizing and interpreting the variety of different labor supply functions that coexist in the empirical literature a crucial theoretical distinction with important empirical payoff is that between labor supply choices at the extensive margin i e labor force participation and employment choices and choices at the intensive margin i e choices about hours of work or weeks of work for workers another important distinction is the one between a descriptive labor supply function and a structural supply function that can be the basis for out of sample policy investigations concerning responses to tax and welfare programs and evaluations of welfare losses a full understanding of the participation hours dichotomy leads to an appreciation of the importance of the problem of selection bias what is the wage to impute to a nonworking person these distinctions are a legacy of the research conducted on labor supply over the past 20 years many important empirical questions have been addressed i how strong are the effects of taxes welfare and transfer programs on labor supply ii how important is intertemporal substitution can life cycle labor supply models explain business cycle labor supply behavior iii has the consensus view of the 1960 s of high labor supply elasticities for married women and low labor supply elasticities for married men held up all of the empirical evidence assembled on labor supply must be called into question in the light of important research on the basic quality of the data conducted by analysts at the university of michigan i discuss this evidence in a concluding section except for my discussion of measurement issues i focus only on the major discoveries about which a general consensus has emerged

automatic stabilizers and economic crisis us vs europe this paper analyzes the effectiveness of the tax and transfer systems in the eu and the us to provide income insurance through automatic stabilization in the recent economic crisis we find that automatic stabilizers absorb 38 of a proportional income shock in the eu compared to 32 in the us in the case of an unemployment shock 47 of the shock is absorbed in the eu compared to 34 in the us this cushioning of disposable income leads to a demand stabilization of up to 30 in the eu and up to 20 in the us there is large heterogeneity within the eu automatic stabilizers in eastern and southern europe are much lower than in central and northern european countries we also investigate whether countries with weak automatic stabilizers have enacted larger fiscal stimulus programs

the political economy of mitigation and adaptation abstract climate policies have very uneven effects in terms of their fiscal impact while mitigation of climate change typically raises revenues adaptation is costly to the taxpayer and the more so the more distortionary the tax system moreover the benefits and costs of mitigation and adaptation vary across generations in an olg model with majority voting we show that even in the absence of international pollution spillovers and strategic considerations neither mitigation nor adaptation can be expected to be set efficiently the reason is that voters have incentives to use climate policy as an instrument for redistribution we find that these incentives depend on the underlying tax system furthermore the chosen mitigation or adaptation level may be inefficiently high in a political equilibrium with a distortionary income tax system although not simultaneously this finding suggests that a distortionary income tax system favors one policy mitigation or adaptation at the expense of the other the calibration of our model to the german economy reveals that both mitigation and adaptation are lower than their socially optimal levels

the optimal taxation of unskilled labor with job search and social assistance abstract in order to explore the optimal taxation of low skilled labor we extend the standard model of optimal nonlinear income taxation in the presence of quasi linear preferences in leisure by allowing for involuntary unemployment job search and an exogenous welfare benefit in trading off low skilled employment against work effort of higher skilled workers the government balances distortions on the search margin with those on work effort higher welfare benefits typically reduce taxes paid by low skilled workers and raise marginal tax rates throughout the skill distribution

redistribution and the marginal cost of public funds abstract discussions of the marginal cost of public funds with distortionary taxation are often cast in the framework of a one consumer economy while the main justification of distortionary taxes is that they are needed for redistribution this paper analyzes the issue in a model with heterogeneous consumers and a linear income tax focusing on the tradeoff between labour market distortions and the redistribution from high wage to low wage workers in an optimal tax system the mcf will be the same for all sources of funds and under certain assumptions less than one without optimality the mcf will in general differ between different sources of finance

work costs and nonconvex preferences in the estimation of labor supply models abstract works costs have not been adequately handled in labor supply estimation likely due to their complexity we show that if work costs are not accounted for in the budget and time constraints in a structural labor supply model they will be subsumed into the data generating preferences even if underlying preferences over consumption and leisure are convex the presence of unobservable work costs can make these preferences appear nonconvex however we show that under plausible conditions policy relevant calculations such as estimates of the effect of tax changes on labor supply and deadweight loss measures are not affected by the fact that estimated preferences incorporate work costs

on the marginal welfare cost of taxation this paper develops a rigorous partial equilibrium analysis of the determinants of margin al welfare cost mwc of taxes on labor earnings it shows that four key parameters interact to determine the magnitude of mwc using aggregate data and plausible ranges of values for the parameters mwc can vary from under 10 percent to more than 300 percent of marginal tax revenue intermediate parameter values sugge st mwc is in the 25 50 percent range however the more extreme estimates cannot be ruled out on the basis of available evidence suggesting that mwc cannot yet be copyright 1987 by american economic association

the extensive macro labor supply elasticity integrating taxes and expenditures abstract this paper shows that accounting for certain public expenditures is crucial when comparing labor tax system efficiencies across countries to measure the extensive margin response to taxation i assemble a large cross country dataset consisting of the employment ratios the average effective tax rates the out of work benefits transfers as well as public expenditures on childcare elderly care and family policy covering all oecd countries and more than two decades when not controlling for the country and year fixed effects the extensive margin elasticities are negative once accounting for transfers the elasticities are negative or at most flat even with fixed effects once additionally accounting for public expenditures subsidies on labor complements which are robustly positively associated with the employment to population ratios i obtain either flat or positive extensive margin elasticities in the lower end of the expected range

the marginal cost of public funds hours of work versus labor force participation this paper extends the theory and measurement of the marginal cost of public funds mcf to account for labor force participation responses our work is motivated by the emerging consensus in the empirical literature that extensive participation responses are more important than intensive hours of work responses in the modelling of extensive responses we argue that it is crucial to account for the presence of non convexities created by fixed work costs in a non convex framework tax and transfer reforms give rise to discrete participation responses generating first order effects on government revenue these revenue effects make the marginal cost of funds higher and we show numerically that the implications for mcf tend to be substantial

dynamic inefficiencies in an employment based health insurance system theory and evidence we investigate the effects of the institutional settings of the us health care system on individuals life cycle medical expenditures health is a form of general human capital labor turnover and labor market frictions prevent an employer employee pair from capturing the entire surplus from investment in an employee s health thus the pair underinvests in health during working years thereby increasing medical expenditures during retirement we provide empirical evidence consistent with the comparative statics predictions of our model using the medical expenditure panel survey meps and the health and retirement study hrs our estimates suggest significant inefficiencies in health investment in the united states

the choice of apportionment factors under formula apportionment thispaperinvestigatesthechoiceofapportionmentfactorsunderacorporatetaxsystemofformulaapportionment in contrast to perceived wisdom we show that the apportionment formula contains both mobile capital and immobile labor factors regardless of whether the formula is determined decentrally by jurisdictions or centrally by a central planner the central planner uses the formula as a corrective instrument to internalize fiscal externalities we calibrate the model to the european union and show that replacing the current system of separate accounting by formula apportionment would substantially increase tax revenue and welfare under both centralized and decentralized formula choices

company tax reform with a water s edge this paper analyzes the effects of switching from a corporate tax system based on separate accounting sa towards a system in which two countries form a formula apportionment fa union while a third country sticks to sa water s edge our analysis draws a positive picture on the water s edge regulation in the short run for given tax rates the transition from sa to fa is likely to reduce profit shifting from the fa union to non fa tax havens in a long run tax competition analysis we find a negative water s edge externality under fa that tends to be less detrimental than the profit shifting externality under sa and may offset other externalities under fa

optimal provision of public goods a synthesis the standard approach to the optimal provision of public goods highlights the importance of distortionary taxation and distributional concerns a new approach neutralizes distributional concerns by adjusting the income tax schedule we demonstrate that both approaches are derived from the same basic formula we also take the new approach further by deriving an intuitive formula for the optimal level of public goods without imposing strong assumptions on preferences this formula shows that distortionary taxation has a role to play as in the standard approach however the main determinants of optimal provision are different and the modified samuelson rule is likely to lead to underprovision

generalized social marginal welfare weights for optimal tax theory this paper proposes to evaluate tax reforms by aggregating money metric losses and gains of different individuals using generalized social marginal welfare weights optimum tax formulas take the same form as standard welfarist tax formulas by simply substitut ing standard marginal social welfare weights with those generalized weights weights directly capture society s concerns for fairness without being necessarily tied to individual utilities suitable weights can help reconcile discrepancies between the welfarist approach and actual tax practice as well as unify in an operational way the most prominent alternatives to utilitarianism such as libertarianism equality of opportunity or poverty alleviation jel d60 d63 h21 h23 i38

taxes and the labor market participation of married couples the earned income tax credit a distinguishing feature of recent changes to the us system of public assistance is its increasing focus on working families and reliance on the tax system to transfer dollars to needy families after a decade in near total obscurity the earned income tax credit eitc was expanded to become the largest cash transfer program for lower income families with children advocates of the eitc argue that unlike traditional welfare the credit helps promote both the values of family and work indeed empirical evidence consistent with economic theory suggests that the eitc promotes employment among eligible unmarried women with children to target benefits to lower income families however the eitc is based on family income leading to traditional welfare type disincentives for most eligible secondary earners in fact the eitc is likely to reduce overall family labor supply among married couples this paper examines the labor force participation response of married couples to eitc expansions between 1984 and 1996 the effect of the credit is estimated using both quasiexperimental and traditional reduced form labor supply models results from both models show the same qualitative conclusion that the eitc expansions reduced total family labor supply of married couples in all cases we find a decline in labor force participation by married women that more than offsets any rise in participation by their spouses while the labor force participation rate of married men increased by about 0 2 percentage points that of married women decreased by just over a full percentage point these aggregate effects mask substantial heterogeneity in the population women facing the strongest disincentives were more than 2 percentage points less likely to work after the expansions these findings imply that the eitc is effectively subsidizing married mothers to stay home and therefore have implications for the design of the program d 2003 elsevier b v all rights reserved

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

the incidence of mandated maternity benefits i consider the labor market effects of mandates which raise the costs of employing a demographically identifiable group the efficiency of these policies will be largely dependent on the extent to which their costs are shifted to group specific wages i study several state and federal mandates which stipulated that childbirth be covered comprehensively in health insurance plans raising the relative cost of insuring women of childbearing age i find substantial shifting of the costs of these mandates to the wages of the targeted group correspondingly i find little effect on total labor input for that group jel 118 j32 h51 in an era of tight fiscal budget constraints mandating employer provision of workplace benefits to employees is an attractive means for a government to finance its policy agenda consequently in recent years there has been a growth of interest in mandated benefits as a tool of social policy for example the centerpiece of president bill clinton s health care proposal is mandated employer provision of health insurance and more than 20 states have man

market based coordination of thermostatically controlled loads part ii unknown parameters and case studies this two part paper considers the coordination of a population of thermostatically controlled loads tcls with unknown parameters to achieve group objectives the problem involves designing the bidding and market clearing strategy to motivate self interested users to realize efficient energy allocation subject to a peak energy constraint the companion paper part i formulates the problem and proposes a load coordination framework using the mechanism design approach to address the unknown parameters part ii of this paper presents a joint state and parameter estimation framework based on the expectation maximization algorithm the overall framework is then validated using real world weather data and price data and is compared with other approaches in terms of aggregated load response simulation results indicate that our coordination framework can effectively improve the operational efficiency of the distribution system and reduce power congestion at key times

optimal income transfer programs intensive versus extensive labor supply responses this paper analyzes optimal income transfers for low incomes labor supply responses are modeled along the intensive margin intensity of work on the job and along the extensive margin participation into the labor force when behavioral responses are concentrated along the intensive margin the optimal transfer program is a classical negative income tax program with a substantial guaranteed income support and a large phasing out tax rate however when behavioral responses are concentrated along the extensive margin the optimal transfer program is similar to the earned income tax credit with negative marginal tax rates at low income levels and a small guaranteed income carefully calibrated numerical simulations are provided

the use of regression statistics to analyze imperfect pricing policies corrective taxes can solve many market failures but actual policies frequently deviate from the theoretical ideal because of administrative or political constraints we present a method to quantif

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

more giving or more givers the effects of tax incentives on charitable donations in the uk abstract this paper estimates the effects of tax incentives on charitable contributions in the uk using the universe of self assessment income tax returns between 2005 and 2013 we exploit variation from a large reform in 2010 to estimate intensive and extensive margin tax price elasticities of giving using a predicted tax rate instrument for the price of giving relative to consumption we find an intensive margin elasticity of about 0 2 and an extensive margin elasticity of 0 1 yielding a total elasticity of about 0 3 to further explore the extensive margin response we propose a model with a fixed cost of declaring donations and obtain a structural estimate of that cost of around 47 we also study the welfare effects of tax incentives extending the theoretical literature to allow for extensive margin giving and for a fixed cost of declaring donations taking into account these factors there is a case for increasing the subsidy on charitable giving in the uk

optimal dynamic carbon taxes in a climate economy model with distortionary fiscal policy how should carbon be taxed as a part of fiscal policy the literature on optimal carbon pricing often abstracts from other taxes however when governments raise revenues with distortionary taxes carbon levies have fiscal impacts while they raise revenues directly they may shrink the bases of other taxes e g by decreasing employment this article theoretically characterizes and then quantifies optimal carbon taxes in a dynamic general equilibrium climate economy model with distortionary fiscal policy first this article establishes a novel theoretical relationship between the optimal taxation of carbon and of capital income this link arises because carbon emissions destroy natural capital they accumulate in the atmosphere and decrease future output consequently this article shows how the standard logic against capital income taxes extends to distortions on environmental capital investments second this article characterizes optimal climate policy in sub optimal fiscal settings where income taxes are constrained to remain at their observed levels third this article presents a detailed calibration that builds on the seminal dice approach but adds features essential for a setting with distortionary taxes such as a differentiation between climate change production impacts e g on agriculture and direct utility impacts e g on biodiversity existence value the central quantitative finding is that optimal carbon tax schedules are 8 24 lower when there are distortionary taxes compared to the setting with lump sum taxes considered in the literature

labour force and land distributional effects of agricultural technology a case study of coffee abstract land reform frequently refers to government policies which expropriate large farms and fragment them into smaller units however land reform can also refer to the opposite process that of consolidation of farms which are too small for efficient production in the latter sense that of land consolidation land reform may or may not be socially desirable and prompt government intervention possible gains in efficiency accruing from land consolidation may not be desirable if it entails agricultural unemployment and accelerated rural urban migration in which case governments may try to intervene this paper looks at land reform in the context of one crop coffee new techniques of coffee cultivation will increase output labour output land and labour land ratios offering the prospect for higher coffee employment and output however economic and institutional barries will preclude higher output as a result coffee employment and small coffee farms will be threatened this paper examines the economic implications of the new coffee technology in the context of columbia

diagram for a small planet the production and ecosystem possibilities curve abstract with the development of the gpi there is now an ecological alternative to gdp for measuring a country s economic performance but we still lack an ecological alternative to the ppc for illustrating a country s economic problem the diagram suggested here illustrates a country s production and ecosystem possibilities including climate stability flood control carbon sequestration aquifer recharge scenery recreation biological diversity and so on burning a rainforest to clear the land shifts a country s ppc outward giving the visual impression of an unmitigated improvement but such development causes a movement along the country s pepc as ecosystem services are transformed into gdp the slope of the pepc is the marginal rate of transformation which equals the ratio of the land s marginal marketable product to its marginal ecosystem product changes in technology create substitution and income effects that help explain the enclosure movement and the environmental kuznets curve much as employment of the human resource can be restrained to allow more leisure development of the natural resource can be restrained to preserve more ecosystem services commercial lobbying interests and rivalries for positional goods create distortions that move a country along its pepc to a materialistic misallocation with too little conservation an idealistic misallocation is also possible with too much preservation of the natural environment small is beautiful up to a point and that is evident in this diagram jacob viner s viner j 1937 studies in the theory of international trade harper and brothers new york analytical objections to the ppc are revived

nudging farmers to use fertilizer theory and experimental evidence from kenya we model farmers as facing small fixed costs of purchasing fertil izer and assume some are stochastically present biased and not fully sophisticated about this bias such farmers may procrastinate post poning fertilizer purchases until later periods when they may be too impatient to purchase fertilizer consistent with the model many farmers in western kenya fail to take advantage of apparently profit able fertilizer investments but they do invest in response to small time limited discounts on the cost of acquiring fertilizer free deliv ery just after harvest calibration suggests that this policy can yield higher welfare than either laissez faire policies or heavy subsidies

the value of life and the rise in health spending over the past half century americans spent a rising share of total economic resources on health and enjoyed substantially longer lives as a result debate on health policy often focuses on limiting the growth of health spending we investigate an issue central to this debate is the growth of health spending a rational response to changing economic conditions notably the growth of income per person we develop a model based on standard economic assumptions and argue that this is indeed the case standard preferences of the kind used widely in economics to study consumption asset pricing and labor supply imply that health spending is a superior good with an income elasticity well above one as people get richer and consumption rises the marginal utility of consumption falls rapidly spending on health to extend life allows individuals to purchase additional periods of utility the marginal utility of life extension does not decline as a result the optimal composition of total spending shifts toward health and the health share grows along with income in projections based on the quantitative analysis of our model the optimal health share of spending seems likely to exceed 30 percent by the middle of the century

the paper work of medicine understanding international medical costs this paper draws on international evidence on medical spending to examine what the united states can learn about making its healthcare system more efficient we focus primarily on understanding contemporaneous differences in the level of spending generally from the 2000s medical spending differs across countries either because the price of services differs for example a coronary bypass surgery operation may cost more in the united states than in other countries or because people receive more services in some countries than in others for example more bypass surgery operations within the price category there are two further issues whether factors earn different returns across countries and whether more clinical or administrative personnel are required to deliver the same care in different countries we first present the results of a decomposition of healthcare spending along these lines in the united states and in canada we then delve into each component in more detail administrative costs factor prices and the provision of care received bringing in a broader range of international evidence when possible finally we touch upon the organization of primary and chronic disease care and discuss possible gains in that area

analysis of tax incentives for energy efficient durables in the eu climate change is one of the most significant challenges faced by societies this century energy consumption is directly associated with co2 emissions and climate change the european commission has set out emission reduction targets that require a great deal of energy consumption savings in the next 10 years in european countries this paper presents the results of an analysis of the potential cost effectiveness of different policy options aimed to foster the production and consumption of energy efficient appliances in different european countries our results suggest that incentives to promote the use of energy efficient appliances can be cost effective but whether or not they are depends on the particular country and the options under consideration from the cases considered tax credits on boilers appear to be a cost effective option in denmark and italy while subsidies on cfli bulbs in france and poland are cost effective in terms of ton of co2 abated comparing the subsidies against the energy tax options we find that the subsidies are in most cases less cost effective than the energy tax

market based coordination of thermostatically controlled loads part i a mechanism design formulation this paper focuses on the coordination of a population of thermostatically controlled loads tcls with unknown parameters to achieve group objectives the problem involves designing the device bidding and market clearing strategies to motivate self interested users to realize efficient energy allocation subject to a peak energy constraint this coordination problem is formulated as a mechanism design problem and we propose a mechanism to implement the social choice function in dominant strategy equilibrium the proposed mechanism consists of a novel bidding and clearing strategy that incorporates the internal dynamics of tcls in the market mechanism design and we show it can realize the team optimal solution this paper is divided into two parts part i presents a mathematical formulation of the problem and develops a coordination framework using the mechanism design approach part ii presents a learning scheme to account for the unknown load model parameters and evaluates the proposed framework through realistic simulations

public finance solutions to the european unemployment problem public finance solutions a tax shift away from low paid labour may fight unemployment unemployment in europe is heavily concentrated among low skilled workers it has therefore been suggested that structural unemployment could be reduced by shifting the tax burden away from low skilled labour and away from the production of consumer services which are intensive in the use of such labour this paper finds that a tax shift away from low paid labour may raise aggregate employment and welfare but only if wage formation is sufficiently responsive to changing tax incentives the analysis also suggests that non negligible employment and welfare gains could be reaped by offering tax concessions or subsidies to those parts of the consumer service sector which compete most directly with low productivity home production and with underground economic activity peter birch sorensen

the welfare cost of factor taxation in a perfect foresight model this paper examines the marginal efficiency cost of various factor taxes in a dynamic general equilibrium model the au thor solves for the excess burden of anticipated and unanticipated t emporary and permanent tax policies using a range of estimates for taste and technology parameters he finds excess burdens larger than those indicated by previous studies that use static models these exc ess burdens are sensitive to parameter values and timing however th e rankings of alternative tax policies turn out to be insensitive to structural parameter values copyright 1987 by university of chicago press

cap and trade taxes and distributional conflict enacting market based environmental regulation such as emissions taxes and cap and trade programs often create rents that are contested by agents in this paper we create a framework that compares social welfare from alternative market based environmental policy instruments under the presence of rent seeking we show that contrary to the commonly held view non revenue raising instruments nrris are in many cases preferable over revenue raising instruments rris we find that the choice of instrument depends on the size of a potential revenue recycling effect and the level of preassigned rents

marginal welfare cost calculations differential analysis vs balanced budget analysis abstract in a differential analysis tax revenue collections are held constant in a balanced budget analysis the spending level is changed and the level of distortionary taxation is changed correspondingly here income effects are important and efficiency calculations depend chiefly on uncompensated elasticities unless government exhaustive expenditure is assumed to substitute closely for cash a small scale computational general equilibrium model is constructed and differential and balanced budget experiments are performed results show that marginal welfare costs calculated from balanced budget experiments can be negative when labor supply functions are backward bending interactions among parameter values and efficiency costs are explored

health care is an individual necessity and a national luxury applying multilevel decision models to the analysis of health care expenditures health care is neither a necessity or a luxury it is both since the income elasticity varies with the level of analysis with insurance individual income elasticities are typically near zero while national health expenditure elasticities are commonly greater than 1 0 the debate over whether health care is or is not a luxury good arises primarily from the failure to specify levels of analysis clearly so as to distinguish variation within groups from variation between groups apparently contradictory empirical results are shown to be consistent with a simple nested multilevel model of health care spending

coffee in mexico international market agricultural landscape and ecology abstract the amount of energy and land devoted to the production of export crops in developing countries is associated with the economic behavior of the commodity in the international market stable increments in the international price of cash crops are expected to drive farmers and agricultural institutions in producing countries to increase production and yields of export crops the increase in crop production which can take place by incorporating new land into agricultural production and or by introducing technological innovations to increase yield may in turn affect the regional landscape and ecology the present study examines the effects of the international coffee price during the 1970s and 1980s upon the regional landscape and coffee farm ecology of mexico s coffee regions the effects upon the landscape and ecology of coffee production in mexico are discussed within the framework of the debate on trade and environment

organizing the health insurance market this paper presents a new approach to organizing universal health insurance first the government divides the entire population into many large groups then the government creates a federal health insurance system healthfed modeled on the federal reserve system to fill the role now played by the benefits office of a large firm the healthfed would create a short menu of alternatives solicit bids for insuring the entire group and price alternatives there would be redistribution between groups and pricing of alterna tives to reflect optimal social insurance principles there would be no connection between health insurance and employment it may seem odd that this presidential address is my first publication in health economics at the time when i might have been working on an alternative address i was chair of an expert panel for the advisory council on social security looking at issues in both retirement income and medical care 2 in the process of this work i have come up with a new approach to organizing universal health insurance that is the subject of this paper before starting on health insurance i will say a few words about a wider context offering what i will say as an example in that setting 3 a great deal of attention has been focused on the exciting issue of reorganizing economies dropping central planning commonly economists from those countries em brace capitalism or more specifically laissez faire competition with an enthusi asm which exceeds that ofwestern economists although not necessarily western businessmen yet laissez faire capitalism has received little serious support in the west for a very long time we all know the fundamental welfare theorem which shows many ways that capitalism can be imperfect we have also seen a growth in discussion and analysis of the many ways governments can mess up resource allocation the real question is the design of arrangements that try to integrate the things that each type of institution does better this is hard for two reasons one is that it is in the realm of second best with many constraints the more the constraints the harder the analysis the second is that we do not have good positive theories of government behavior good examples yes good theories no thus the analysis is more intuitive less theory driven than in our picture of private markets but also in our private market analyses we have been greatly complicating our picture recognizing all sorts of information imperfec tions that affect the way that private markets work so i will present to you a proposal for universal health insurance meant to combine something that

why the european union should adopt formula apportionment with a sales factor using a two country tax competition model with a multinational enterprise mne this paper addresses the question of whether the european union should replace separate accounting sa in corporate income taxation by formula apportionment fa and if so which apportionment factors should be used our main result is that fa with a sales factor may mitigate or even eliminate fiscal externalities caused by the countries tax policy hence our analysis provides a microfoundation for the sales apportionment factor in an empirical calibration to the eu 15 we show that the transition from sa to fa with a sales only formula raises average tax rates by 2 and average tax revenues by 1 billion euros or 0 1 of gdp these effects result in an increase of welfare

welfare the earned income tax credit and the labor supply of single mothers during 1984 1996 welfare and tax policy were changed to encourage work by single mothers the earned income tax credit was expanded welfare benets were cut welfare time limits were added and welfare cases were terminated medicaid for the working poor was expanded as were training programs and child care during this same time period there were unprecedented increases in the employment and hours of single mothers we show that a large share of the increase in work by single mothers can be attributed to the eitc and other tax changes with smaller shares for welfare benet cuts welfare waivers training programs and child care programs