assessing income population and technology impacts on co2 emissions in canada where s the ekc abstract this study investigates the macroeconomic forces underlying carbon dioxide co2 emissions from fossil fuel use in canada in keeping with the relevant literature on environmental degradation three forces are expected to influence co2 emissions gross domestic product per capita gdp capita population and technological change while previous work has employed reduced form models that allow for non linear relationships between co2 and gdp capita it has been common practice to assume linear relationships between co2 and the latter two variables this study tests a more flexible model using a five region panel data set in canada over the period 1970 2000 findings indicate that gdp capita is unrelated to co2 that an inverted u shaped relationship exists with population and that a u shaped relationship exists with technology thus technological and population changes are supported over the commonly hypothesized environmental kuznets curve an inverted u shaped relationship between gdp capita and environmental degradation for affecting co2 emissions from fossil fuel use in canada

baumol s disease and dematerialization of the economy this paper argues that there is reason to be skeptical about the idea that the transition to a service economy will bring about dematerialization of production and consequent environmental improvement this is because the shift to a service economy is an illusion in terms of real production but is instead generated by the fall in the price of manufacturing goods relative to services which is in turn caused by more rapid productivity growth in manufacturing than in services this argument relies on the insights baumol provided on the nature of the service economy and uses swedish long term data on relative sectoral development as an empirical illustration on the other hand the paper argues that there is reason to be cautiously optimistic that structural change may bring about a greening of growth namely the changes in growth patterns sometimes labeled the third industrial revolution which is connected to the emergence of microelectronics swedish co2 emissions show a decline after 1970 which is mainly explained by a politically driven change in the mix of energy carriers but is also related to the stabilization of energy consumption this energy stabilization was caused by slow growth of the economy in conjunction with substantial declines in energy intensity within industrial sectors and an absence of relative growth of the heavy sectors a growth that had marked the economy between 1870 and 1970 microelectronics have contributed to permanently transforming the swedish industrial sector in a lighter direction reducing energy losses in heavy industries and stabilizing household energy consumption so it appears as if there may be some environmental gains from this development that was initiated in the 1970s but not from relatively more production in the service sector

is trade good or bad for the environment sorting out the causality we seek to contribute to the debate over globalization and the environment by asking what is the effect of trade on a country s environment for a given level of gdp we take specific account of the endogeneity of trade using exogenous geographic determinants of trade as instrumental variables we find that trade tends to reduce three measures of air pollution statistical significance is high for concentrations of so2 moderate for no2 and lacking for particulate matter although results for other environmental measures are not as encouraging there is little evidence that trade has a detrimental effect on the environment

the environmental responsibility of business is to increase its profits by creating value within the bounds of private property rights proponents of corporate social responsibility csr typically consider business as usual unsustainable building on historical evidence that long predates the modern environmental movement the contrary case is made that the interplay of voluntary exchange private property rights and self interest has generally resulted in the so called triple bottom line economic social and environmental through more efficient use of materials and the continual creation of higher quality resources however because market processes continually eliminate less competitive firms and tend to concentrate business activities geographically political pressure brought to bear by adversely affected vested interests often results in the creation of policies that cause greater environmental harm than would otherwise be evident environmental csr proponents often misinterpret these government failures as market failures and characteristically advocate policies that further distract firms from their core objective and resulting triple bottom line the article concludes by arguing that the most promising path toward truly sustainable development lies in the unwavering pursuit of profitability within the bounds of well defined and enforced private property rights copyright 2010 the author 2010 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

inflexible rules in incentive problems in practice contracts involve standard terms or rules allowing for variations only under exceptional circumstances we develop a simple model in which optimal contracts display this feature even in the absence of transactions costs rules arise when an agent has countervailing incentives to misrepresent private information these incentives are created by endowing the agent with a critical factor of production ex ante applications in regulatory labor and legal settings

tax policy and the financing of innovation we study tax policy in a schumpeterian growth model with asymmetric information in the financing of innovation investors cannot a priori distinguish between more or less talented entrepreneurs net worth allows talented entrepreneurs to self invest and avoid being pooled with less talented entrepreneurs in the credit market increasing net worth boosts innovation even when financed through higher profit taxes taxing consumption effectively raises net worth and subsidizes profits simultaneously sufficiently taxing consumption implements the social optimum free of adverse selection if forced to tax consumption less the government implements a second best allocation with adverse selection when boosting net worth enough to avoid adverse selection requires taxing profits excessively

the impact of economic growth on co2 emissions in azerbaijan abstract this paper investigates the relationship between the economic growth and co2 emissions in azerbaijan a cointegration analysis is conducted over the period 1992 2013 for getting more robust results johansen ardlbt dols fmols and ccr methods are employed to explore cointegration and estimate long run coefficients we use cubic quadratic and linear specifications and conclude that the last one is an adequate representation for the impact of the economic growth on co2 emissions in azerbaijan the results from the different cointegration methods are consistent with each other and show that the economic growth has a positive and statistically significant impact on the emissions in the long run implying that the ekc hypothesis does not hold for azerbaijan the income elasticity of co2 emissions using different methods is found to be between 0 7 and 0 8 moreover we find that any short run imbalance can be adjusted towards the long run equilibrium path within less than one year the paper concludes that measures to increase energy efficiency carbon pricing instruments in production and international domestic trade activities and nationwide social awareness programs to instruct about the negative consequences of pollution can be considered as relevant environmental policies aimed at reducing carbon emissions

neoclassical growth the j curve for abatement and the inverted u curve for pollution abstract this paper reexamines the neoclassical environmental growth model of forster to gain insights into the dynamic relationships among pollution abatement effort and economic development whereas the model has heretofore been used to examine steady state levels of capital consumption and environmental quality it also provides a theoretical basis for recent empirical research on j curves for abatement effort and inverted u curves for pollution

a theoretical basis for the environmental kuznets curve abstract this paper attempts to explain the environmental kuznets curve ekc or inverted u shaped relationship between income and environmental degradation in the framework of endogenous growth model considering a closed economy one part of capital is used for commodity production which generates pollution that degrades existing environment and the remaining part is used for abating pollution i e upgrading environment sufficient abatement activity improves restores environmental quality a sufficient abatement activity associated with commodity production could only lead optimally towards steady state the ratio of allocation of capital between two sectors production and abatement is fixed along the optimal path but it varies along the non optimal path that exists in the off steady state in the economy allocation of capital for abatement activity varies over time thus a change from insufficient to sufficient allocation of capital i e investment for abatement activity is the basis for an inverted u shaped relationship between environmental quality and economic growth

multiple equilibria in a stochastic implementation of dice with abrupt climate change abstract integrated assessment modeling of global climate change has focused primarily on gradually occurring changes in the climate system however atmospheric and earth scientists have become increasingly concerned that the climate system may be subject to abrupt discontinuous changes on short time scales and that anthropogenic greenhouse gas emissions could trigger such shifts incorporating this type of climate dynamics into economic or integrated assessment models can result in model non convexity and multiple equilibria and thus complicate policy analysis relative to models with unique globally optimal policies using a version of the nordhaus dice model amended in previous research by keller et al 2004 keller klaus benjamin m bolker david f bradford 2004 uncertain climate thresholds and optimal economic growth journal of environmental economics and management 48 1 723 741 in conjunction with a stochastic global optimization algorithm we generate level sets of solutions which helps identify multiple equilibria resulting from the potential abrupt cessation of the north atlantic thermohaline circulation we discuss the implications of this model geometry for formulating greenhouse gas abatement policy under uncertainty and suggest that this general approach may be useful for addressing a wide range of model non convexities including those related to endogenous technological change

tax policies and the financially constrained farm household this article analyzes the implications of income profit and consumption taxes on the economic decisions of financially constrained farm households within a dynamic intertemporal framework the most important results are that replacing a profits tax with a consumption tax would lead to increases in on farm work farm income and farm production in the short run capital accumulation would be enhanced leading to similar effects in the long run if an income tax is replaced with a consumption tax similar expansive effects would occur in the intermediate and long run but in the short run there would be no effect on farm production

renegotiation and information revelation over time the case of optimal labor contracts the paper analyzes the issue of commitment in grossman and hart s model of optimal labor contracts under asymmetric information about firm profitability we extend their framework by allowing employment to vary over time at equidistant intervals when both parties can precommit ex ante not to renegotiate the contract this replicates the grossman hart outcome each subperiod when precommitment is not possible information revealed through the contract can create pareto improving renegotiation opportunities and the issue of optimal information revelation arises the paper analyzes the impact of ex post pareto improving renegotiations on the optimal contract

the environmental kuznets curve ekc theory part a concept causes and the co2 emissions case abstract the main purpose of this study is to capture the main features of the environmental kuznets curve ekc concept according to the ekc theory the process of economic growth is expected eventually to limit the environmental degradation created in the early stages of development the ekc concept leads many researchers from the early 1990s to assume that each economy should focus on its growth and any environmental problems will be eventually eliminated by the process of economic growth several studies attempt to test empirically the ekc hypothesis using data on many countries and examining various types of environmental degradation while other studies examine the underlying factors that may drive such a relationship this article reviews the evolution of the ekc concept and the possible causes of an ekc pattern like the distribution of income the international trade pollution haven hypothesis structural changes technical progress and improvements in energy efficiency institutions and governance and consumer preferences as co2 emissions are a pollutant with global effects several studies deal with the possible ekc pattern for co2 emissions and these studies are discussed separately the various critiques on the ekc concept are reviewed in the second article of this work

energy efficiency rebound effects and the environmental kuznets curve technological change is one factor used to justify the existence of an environmental kuznets curve and technological improvements have been argued to be a key factor in mitigating the impacts of economic growth on environmental quality in this paper we use a cge model of the scottish economy to consider the factors influencing the impacts of one form of technological change improvements in energy efficiency on absolute levels of co2 emissions on the carbon intensity of the economy co2 emissions relative to real gdp and the per capita ekc relationship these factors include the elasticity of substitution between energy and non energy inputs responses in the labour market and the structure of the economy our results demonstrate the key role played by the general equilibrium price elasticity of demand for energy and the relative influence of different factors on this parameter

economic growth and environmental degradation the environmental kuznets curve and sustainable development abstract in this paper we critically examine the concept of the environmental kuznets curve ekc it proposes that there is an inverted u shape relation between environmental degradation and income per capita so that eventually growth reduces the environmental impact of economic activity the concept is dependent on a model of the economy in which there is no feedback from the quality of the environment to production possibilities and in which trade has a neutral effect on environmental degradation the actual violation of these assumptions gives rise to fundamental problems in estimating the parameters of an ekc the paper identifies other econometric problems with estimates of the ekc and reviews a number of empirical studies the inference from some such ekc estimates that further development will reduce environmental degradation is dependent on the assumption that world per capita income is normally distributed when in fact median income is far below mean income we carry out simulations combining ekc estimates from the literature with world bank forecasts for economic growth for individual countries aggregating over countries to derive the global impact within the horizon of the bank s forecast 2025 global emissions of so 2 continue to increase forest loss stabilizes before the end of the period but tropical deforestation continues at a constant rate throughout the period

economic development and the energy intensity of human well being evidence from the gcc countries abstract this paper empirically investigates the effect of economic development on the energy intensity of human well being eiwb in the gulf cooperation council gcc during the period 1995 2012 we employ a time series cross sectional prais winsten regression model with panel corrected standard errors pcse we conclude that economic development has had a significant positive impact on eiwb during the period 1995 2012 the results indicate that the stress on the environment had increased in a noticeable manner from 1995 until 2006 however over the period 2007 2012 the stress went back to the level observed in 1995 this observation is unfortunate from the perspective sustainable economics

scarcity growth and r d abstract the limits to economic growth due to resource scarcity can be alleviated only by the development of backstop substitutes this paper combines resource based economic growth with r d to reduce the cost of backstop technologies characterizing the entire dynamics of optimal growth and r d processes we find that an economy s growth prospects depend on its type as determined by its production technology and learning ability and by its knowledge capital endowment a wide variety of growth patterns emerges ranging from cases in which an economy that without r d eventually stagnates converges to a steady state is diverted by r d onto a path of sustained growth to cases in which r d is not warranted resource scarcity is shown to encourage r d due to the increased reliance on the backstop technology

nonrevelation in employment contracts the author considers an employment contracting model in which firms have private information that is directly payoff relevant to workers and workers are always free to quit in contrast to existing models firms will sometimes fail to reveal adverse information to workers in equilibrium because of the effect this will have on quits risk averse workers can prefer such pooling contracts to separating ones because inducing truth telling requires firms to cut wages in states that are already bad for the worker applications to firms incentives to reveal unsafe working conditions and impending layoffs or plant closures are discussed copyright 1994 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the dynamics of incentive contracts the paper studies a simple two period principal agent model in which the principal updates the incentive scheme after observing the agent s first period performance the agent has superior information about his ability the principal offers a first period incentive scheme and observes some measure of the agent s first period performance cost or profit which depends on the agent s ability and unobservable first period effort the relationship is entirely run by short term contracts in the second period the principal updates the incentive scheme and the agent is free to accept the new incentive scheme or to quit the strategies are required to be perfect and updating of the principal s beliefs about the agent s ability follows bayes rule the central theme of the paper is that the ratchet effect leads to much pooling in the first period first for any first period incentive scheme there exists no separating equilibrium second when the uncertainty about the agent s ability is small the optimal scheme must involve a large amount of pooling the paper also gives necessary and sufficient conditions for the existence of partition equilibria and looks at the effect of cost uncertainty

output emissions and technology some thoughts abstract the principal goal of this article is to identify the implications of a binding emission constraint on a firm s optimal capital labor ratio and to determine whether it is appropriate to write a firm s production function as an increasing function of its emissions alone i find that even though a firm s supply curve may be written as a positive function of its emissions it is not appropriate to write the production technology as an increasing function of only its emissions except under special circumstances

are there limits to growth a simple theoretical model of pollution is developed that generates an inverted u shape relationship between per capita income and environmental quality this model is then used to study long run growth the same inverted u shape is shown to appear in time series and the prospects for sustained growth are shown to hinge on whether increasingly strict environmental regulation is compatible with a constant rate of return on capital implementation is also studied tax and voucher schemes are shown to have an advantage over direct regulation because they provide the correct incentives for capital accumulation copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

are there increasing returns to pollution abatement empirical analytics of the environmental kuznets curve in pesticides abstract according to the environmental kuznets curve ekc hypothesis economic growth and the reduction of environmental degradation are compatible goals an inverted u shaped relationship between economic performance and environmental pollution suggests that empirically an economy is associated with smaller levels of pollution after some threshold income point one potential explanation for the empirical evidence of an ekc is increasing returns to pollution abatement where the abatement efficiency rises with an increase in the scale of abatement doubling the clean up efforts more than doubles the abatement of pollution as this efficiency gain makes abatement less expensive pollution might fall as more abatement is undertaken this study tests the hypothesis that there are increasing returns to abating pollution empirical evidence on environmental risks in the us agricultural sector since 1970 support the existence of increasing returns in addition i estimate the productivity of pollution abatement using refined empirical productivity measurement methods and explicitly control the level of technology the results show the importance of including an environmental productivity variable in the ekc framework

economic growth trade and energy implications for the environmental kuznets curve abstract the environmental kuznets curve ekc hypothesis asserts that pollution follows an inverted u path with respect to economic growth the ekc has been explained in terms of structural changes in the composition of economic output and increased environmental regulation at higher income levels while some authors have incorporated the impact of trade policy orientation on the ekc the impact of the actual movement between countries of goods that embody pollution has not been considered this paper attempts to econometrically quantify the effect using pooled cross country and time series data the ekc hypothesis is examined with respect to commercial energy consumption the source of many serious environmental problems it was found that while both industrializing and industrialized countries have added to their energy requirements by exporting manufactured goods the growth has been substantially higher in the former at the same time industrialized countries have been able to reduce their energy requirements by importing manufactured goods exports of manufactured goods by industrialized countries has thus been an important factor in generating the upward sloping portion of the ekc and imports by industrialized countries have contributed to the downward slope

technical progress structural change and the environmental kuznets curve abstract the paper shows that under reasonable assumptions about technical progress a positive sustainable growth rate fails to exist the argument is that a growing part of income has to be spent for continuing technical progress in order to compensate the pollution effects of growth hence in the long run either the sustainability condition will be violated or the growth rate must decline to zero furthermore in finite time the level of wealth will decrease despite growing income and a constant pollution level thus further growth is no longer reasonable similar arguments also hold for the environmental effects of structural change favoring less pollution intensive economic activities an evolutionary change of goods and production technology may shift the limits of growth and is hence a prerequisite for a long run ekc

sustainable growth and the environmental kuznets curve abstract this paper develops an endogenous growth model with pollution and both human and physical capital human capital is produced cleanly and physical capital can be used for pollution control economic growth is sustainable in the long run it is optimal for human capital to grow more rapidly than physical capital output and consumption while pollution declines for realistic parameter values our results differ sharply from stokey s result for an ak technology that sustained economic growth is not optimal the model can generate an environmental kuznets curve a pollution tax or a voucher system can implement the pareto efficiency solution

towards an integrated framework for development and environment policy the dynamics of environmental kuznets curves abstract environmental kuznets curves ekcs have recently received considerable attention in development and environment policy but little is known on how the interaction between ecological and economic factors may result in an ekc or other qualitatively different outcomes we introduce a restricted class of vector valued differential equations for representing the evolution of socioeconomic and environmental variables which influence or are influenced by the process of economic development our model includes not only the complete path of each variable over time but also the highly critical interactions among multiple variables we demonstrate analytically and numerically that among a multiplicity of possible outcomes an inverted u pattern can only be obtained under specific circumstances and requires attention to the multiple factors which form the economic environmental system rather than a single dominant one

labor contracts under asymmetric information when workers are free to quit this paper examines the impact of workers ability to quit on the performance of labor contracts between workers and privately informed firms while the need to induce workers to remain with the firm necessarily lowers total welfare the effect on employment levels is to reduce the magnitude of the inefficiency due to asymmetric information whether this inefficiency is under or overemployment the model predicts that employment distortions increase with the strength of lock in effects on workers a prediction which contrasts with the results of efficiency wage models and which may help in empirical testing of labor contract theory

models as usual for unusual risks on the value of catastrophic climate change we study the role of alternative intertemporal preference representations in a model of economic growth stock pollutant and endogenous risk of catastrophic collapse we contrast the traditional discounted utility model which assumes risk neutrality with respect to intertemporal utility with a multiplicative choice model that displays risk aversion in that dimension first we show that both representations of preferences can rationalize the same business as usual economy for a given interest rate and no pollution externality second once we introduce a collapse risk whose hazard rate is a function of the pollution stock multiplicative preferences recommend a much more stringent policy response an illustration in the context of climate change indicates that switching to the multiplicative preference representation has a similar effect in terms of policy recommendations as scaling up the schedule of the hazard rate by a factor of 100

environmental externalities and immiserizing structural changes in an economy with heterogeneous agents the way in which natural and physical capital are accumulated distributed and harnessed underpins the functioning and sustainability of the productive system of each society as well as its social stratification significant changes in the interactions between natural and physical capital accumulation give rise to processes of structural change sc which affect not only sectoral composition of the productive system but also social equity and environmental quality we propose a taxonomy of different scs on the basis of distributive environmental and economic outcomes and we study a two sector model with environmental externalities to identify under which conditions each sc can occur our model shows how the type of sc is shaped by the link between agents heterogeneity in terms of productive asset endowment and their vulnerability to environmental degradation in particular we find that a sc associated with reduction in poverty and in environmental pressures can occur only if productivity of the physical capital intensive sector increases but its rate of environmental impact remains relatively lower than that of the natural capital intensive sector

labor contracts with voluntary quits this paper considers labor contracts between the risk neutral firm and risk averse workers with heterogeneous outside opportunities alternative wages which become known to the worker after a costly on the job search in the case of a deterministic alternative wage self selection over a menu of contract wages would achieve the first best contract if the alternative wages are stochastic the second best contract emerges as a trade off between productive efficiency and risk sharing workers who voluntarily search are fewer and workers who search are less likely to quit if the search effort is not monitored even fewer workers search

climate change and uneven development in this paper using a theoretical model with endogenous capital depreciation we study the effects of climate change and adaptation on long run development we show that climate change affects economic growth depending on climate exposure and adaptation efficiency which are asymmetric between different countries poor countries are likely to be hurt more because of the negative effects of climate change on the rate of depreciation of the assets that represent the engine of growth these asymmetries generally induce growth deficits and unsustainability traps in less developed economies

the environmental kuznets curve and the structural change hypothesis we provide a very simple macroeconomic investigation of the role that structural changes might play in generating inverted u shaped income pollution relationships differently from previous research which mainly focuses on empirical static or general equilibrium models we develop a standard balanced growth path bgp analysis we show that along the bgp equilibrium an inverted u shaped income pollution relationship may occur as a response to structural changes but whether this is the case or not it will crucially depend upon the magnitude of a production externality parameter moreover we show that the negative relationship between income and pollution can only be a transitory phenomenon and in the long run pollution will increase as income rises generating overall an n shaped pattern

on the informational content of wage offers this article investigates signaling and screening roles of wage offers in a single play matching model with two sided unobservable characteristics it generates the following predictions as matching equilibrium outcomes i good jobs offer premia if high quality worker population is large ii bad jobs pay compensating differentials if the proportion of good jobs to low quality workers is large iii all firms may offer a pooling wage in markets dominated by high quality workers and firms or iv gresham s law prevails good types withdraw if bad types dominate the population the screening signaling motive thus has the potential of explaining a variety of wage patterns

intra industry trade in intermediate products pollution and internationally increasing returns this paper examines the relationship between intra industry trade in intermediate products pollution and increasing returns we develop a two country model in which production occurs in two stages final and intermediate good production intermediate goods are produced under monopolistic competition and final good production exhibits increasing returns with respect to the number of varieties of intermediates pollution occurs in the production of the final good when polluting intermediates are used we analyze the effects of international trade in intermediate products on pollution output and welfare under an endogenous tax scenario and with two types of pollution functions the results show that because of increasing returns international trade either leads to lower total pollution in each country or lower pollution per unit of output in at least one country in addition intra industry trade causes countries to import the environmental quality of their trading partners

a tradable permit system in an intertemporal economy it is known that in an intertemporal competitive economy a tradable permit system may not achieve efficiency without setting appropriate permit interest rates i e rewards for holding permits to find the rates however we need to know in advance the path of efficient permit prices which is difficult to obtain this study intends to solve this problem in two ways first we analyze a special case in which the permit interest rates are given by a simple rule for example if the marginal abatement cost of pollution emission is constant then the appropriate rate is to equal the monetary interest rate as is the case for global warming if the damage is caused in the future far beyond the planning period of the environmental program the appropriate rate coincides with the marginal self recovery of environmental stock under certain conditions as a second approach we propose a tradable permit system with a permit bank as a mechanism by which the permit interest rates are generated endogenously without governmental intervention other than the issuance of permits however we also show that this approach raises the problem of indeterminacy of the equilibrium

credit constraints and the inverted u relationship between competition and innovation empirical studies have uncovered an inverted u relationship between product market competition and innovation this is inconsistent with the original schumpeterian model where greater competition always reduces the profitability of innovation and thus the incentives to innovate we show that the model can predict the inverted u if the innovators talent is heterogeneous and asymmetrically observable when competition is low and profitability is high talented innovators are credit constrained since untalented innovators are eager to mimic them as competition increases and profitability decreases untalented innovators become less eager to mimic and talented innovators can invest more this generates the increasing part of the relationship when competition is high and profitability is low credit constraints disappear and the relationship is decreasing our theory generates additional specific predictions that are well borne out by the existing evidence

signalling ability to pay and rent sharing dynamics abstract it is often argued that competitive and rent sharing models of wage determination should be distinguished by their long run properties in general rent sharing models predict the existence of a long run relationship between wages and firm specific ability to pay but the competitive model does not i present a two period counter example which demonstrates that rent sharing can be merely a short run phenomenon in the separating equilibria the firm signals ability to pay through first but not second period wage offers the model also has pooling equilibria in which the firm pays rents in the long run

a theory of trickle down growth and development this paper develops a model of growth and income inequalities in the presence of imperfect capital markets and it analyses the trickle down effect of capital accumulation moral hazard with limited wealth constraints on the part of the borrowers is the source of both capital market imperfections and the emergence of persistent income inequalities three main conclusions are obtained from this model first when the rate of capital accumulation is sufficiently high the economy converges to a unique invariant wealth distribution second even though the trickle down mechanism can lead to a unique steady state distribution under laissez faire there is room for government intervention in particular redistribution of wealth from rich lenders to poor and middle class borrowers improves the production efficiency of the economy both because it brings about greater equality of opportunity and also because it accelerates the trickle down process third the process of capital accumulation initially has the effect of widening inequalities but in later stages it reduces them in other words this model can generate a kuznets curve

a tale of two elasticities a general theoretical framework for the environmental kuznets curve analysis abstract we show that a variety of seemingly diverse concepts used to theoretically explaining the ekc have a common origin in two key preference and production elasticities we also prove that they jointly correspond to a unique underlying preference technology theoretical framework

voting for pollution policy the importance of income inequality and openness to trade abstract this paper analyzes how openness and the distribution of factor ownership interact to determine individual and aggregate demand for pollution policy analysis of voter preferences in autarky shows that an increased stake in either the dirty or the clean industry can induce an individual voter to prefer stricter environmental policy similarly the paper shows that poorer voters may be the greener voters within an electorate the model also reveals that the incidence of pollution policy depends upon a country s trade regime with consequences for the direction in which income inequality influences aggregate demand for pollution policy

equilibrium long term labor contracts the paper presents a labor market equilibrium analysis of implicit contract theory a two period single good model is used to propose consistent notions of labor market equilibrium for long term employment contracts both when labor is specialized and cannot move in the second period and when there is free mobility without costs the result that long term contracts emerge in equilibrium even without mobility costs is novel and contrary to common beliefs the main features of equilibrium are that risk neutral firms will insure risk averse workers against downside risk yielding downward rigid wages wages are not fully rigid as in earlier work on contract theory because workers may quit and wages have to be bid up to retain them the firm gets its return of the insurance deal by paying less than marginal product in the first period the resulting equilibrium is second best and lies between productive efficiency and full insurance workers gain from long term contracts in comparison to spot markets whereas owners may not in the model with specialized skills there exist transfer payments such that both parties are better off within an equilibrium with long term contracts

optimal severance pay with incomplete information this paper contrasts optimal employment contracts in a world of full information and in a world in which the worker s alternative employment possibilities cannot be observed by the firm the difference between income and severance pay that is the opportunity cost of separating will be higher in more productive states of nature with complete wage insurance no longer possible we therefore have an explanation of higher ability individuals receiving high wages in the short run in long term contracts the explanation does not rely as past explanations have done on the imperfections in bonding arrangements or in loan markets

status concern and the exploitation of common pool renewable resources we examine the impact of social status concern in a common pool renewable resource oligopoly a small number of players share access to a common pool resource and sell their production in a common market where they are oligopolists we depart from the mainstream literature on common pool resource oligopolies by considering that each player cares about her social status we allow for two channels to impact a player s welfare harvest and profits under the first channel a player has a bump in her utility when her harvest is larger than the average harvest of the rest of the players in this case we show that the presence of this channel exacerbates the tragedy of the commons under the second channel a player enjoys a bump in her utility if she manages to earn more profits than the average profits of the other players in this case we show that social status concern may temporarily alleviate the tragedy of the commons it results in a decrease of extraction over an interval of stock sizes

simulating fundamental tax reform in the united states this paper uses a new large scale dynamic life cycle simulation model to compare the welfare and macroeconomic effects of transitions to five fundamental alternatives to the u s federal income tax including a proportional consumption tax and a flat tax the model incorporates intragenerational heterogeneity and a detailed specification of alternative tax systems simulation results project significant long run increases in output for some reforms for other reforms namely those that seek to insulate the poor and initial older generations from adverse welfare changes long run output gains are modest

financial development and economic growth views and agenda this critique argues that the preponderance of theoretical reasoning and empirical evidence suggests a positive first order relationship between financial development and economic growth the body of work would push even most skeptics toward the belief that the development of financial markets and institutions is a critical and inextricable part of the growth process and away from the view that the financial system is an inconsequential sideshow responding passively to economic growth many gaps remain however and the paper highlights areas in acute need of additional research