multinational supermarket chains in developing countries does local agriculture benefit there is no consensus in the empirical literature on how entry of multinational supermarket chains affects farmers in developing countries econometric analyses struggle with causality issues and are unclear about the channel of effects we quantify the dynamic effects of supermarket expansion on agriculture within a structural framework that clarifies the adjustment mechanisms involved the model specification allows for endogenous interaction between agricultural productivity and supermarkets choice of suppliers based on numerical simulations two results emerge first we offer a possible interpretation of the conflicting evidence in the empirical literature whether farmers benefit from supermarkets or get stuck in a low productivity trap depends on the extent of local constraints related to production capacity and market access second supply chain development initiated by supermarkets can help farmers escape the low productivity trap while supermarkets face a short run cost to supplier upgrading they gradually gain from more productive local suppliers

a portfolio approach to endogenous growth equilibrium and optimal policy abstract this paper develops a portfolio approach to modeling endogenous growth in continuous time that is especially suitable for addressing fiscal and financial issues in policy design the analysis focuses on the equilibrium relationship between fiscal and financial policy rates of return and wealth allocation we analyze two models the first is based on the arrow romer model with increasing returns and an external effect of capital on labor productivity the second draws on barro s analysis of government spending and endogenous growth in both models we study the equilibrium allocation and discuss the optimal fiscal and financial policy

how does aversion to intertemporal variation affect hedging behavior standard models of hedging behavior assume that hedgers wish to minimize net price variation they treat variation as risk and fail to distinguish random variation at a specific point in time from pre determined intertemporal variation recursive utility differentiates between random and nonrandom variation by allowing the elasticity of intertemporal substitution eis to be imperfect the inverse of the eis measures the hedger s aversion to intertemporal variation and is distinct from aversion to risk optimal hedge ratios decline toward zero as aversion to intertemporal variation increases these results may help explain why hedgers commonly hedge less than recommended by standard models

measuring the incentives to learn in colombia using new quantile regression approaches abstract this paper employs newly developed quantile regression techniques to investigate a policy that could differentially affect students performance the colombian vouchers were assigned using lotteries and were renewable as long as the students maintained satisfactory academic progress this second aspect of the program may provide incentives for low attainment students to work harder the evidence supports the hypothesis that incentives could account for the impact of the vouchers including lower repetition rate the effect of the vouchers is largest in the lower tail of the educational attainment distribution a possibility that was conjectured by others but has not yet been confirmed empirically the evidence suggests that the incentive effect of the program increases weak students test scores by at least 0 1 standard deviations roughly the score gain associated to a half year of school learning

democracy financial openness and global carbon dioxide emissions heterogeneity across existing emission levels summary the determinants of co 2 emissions have attracted many researchers over the past few decades most of studies however ignore the possibility that effect of independent variables on co 2 emissions could vary throughout the co 2 emission distribution we address this issue by applying quantile regression methods we examine whether greater democracy and more financial openness consistently reduce emissions among the most and least emission nations our results show that the effect of democracy on co 2 emissions is heterogeneous across quantiles among the most emissions nations greater democracy appears to reduce emissions but more financial openness does not appear to reduce it

balanced and unbalanced growth abstract a model is developed that shows how two sectors or regions interact out of steady state through product labor and capital markets and how if the former interaction dominates the growth of one sector pulls along the growth of the other while if the latter interactions dominate one sector or region booms while the other declines it is then shown why liberalization of foreign trade should lead to a transition from a lower to a higher steady state growth rate and why during the course of this transition growth might initially be even slower than before liberalization

environmental kuznets curve hypothesis in pakistan cointegration and granger causality abstract the paper is an effort to fill the gap in the energy literature with a comprehensive country study of pakistan we investigate the relationship between co2 emissions energy consumption economic growth and trade openness in pakistan over the period of 1971 2009 bounds test for cointegration and granger causality approach are employed for the empirical analysis the result suggests that there exists a long run relationship among the variables and the environmental kuznets curve ekc hypothesis is supported the significant existence of ekc shows the country s effort to condense co2 emissions and indicates certain achievement of controlling environmental degradation in pakistan furthermore we find a one way causal relationship running from economic growth to co2 emissions energy consumption increases co2 emissions both in the short and long runs trade openness reduces co2 emissions in the long run but it is insignificant in the short run in addition the change of co2 emissions from short run to the long span of time is corrected by about 10 yearly

is there a turning point in the relationship between income and energy use and or carbon emissions abstract we analyze the effect of fuel mix model specification and the level of development on the presence and size of a turning point in the relationship between income and energy use and or carbon emissions the results indicate that fuel mix the specification for income and the level of economic development affect conclusions about whether there is a turning point in the relationship between economic activity and energy use and carbon emissions including fuel shares generally reduces the size of a turning point that is estimated from a panel that includes observations from both oecd and non oecd nations but this result varies according to the level of development for oecd nations there is limited support for a turning point in the relationship between income and per capita energy use and or carbon emissions for non oecd nations there is no turning point in the relationship between income and either energy use or carbon emissions instead the relationship is positive together the results indicate that forecasters and policy makers should not depend on a turning point in the relationship between income and energy use or carbon emissions to reduce either

trade policy in a growth model with technology gap dynamics and simulations for south africa we extend an open economy ramsey model to include the technology gap to the world technology frontier the setting is a middle income country with productivity growth driven by technology adoption and foreign capital goods stimulating spillover and catching up the interaction of technology adoption and capital accumulation generates prolonged transition growth and strengthens the growth effect of increased openness model simulations reproduce the changing openness in south africa 1960 2005 international sanctions and protectionism are represented by a calibrated tariff equivalent and the counterfactual elimination of the tariff equivalent shows large potential for gdp growth according to our preferred parameterization increased trade share by 10 points raises gdp level over time by about 12 separating the effects of openness between investment and productivity we find that almost 60 of the increase in gdp is due to increased productivity partly because of interaction with higher investment

an econometric study of co2 emissions energy consumption income and foreign trade in turkey abstract this study attempts to empirically examine the dynamic causal relationships between carbon emissions energy consumption income and foreign trade in the case of turkey using the time series data for the period 1960 2005 this research tests the interrelationship between the variables using the bounds testing to cointegration procedure the bounds test results indicate that there exist two forms of long run relationships between the variables in the case of first form of long run relationship carbon emissions are determined by energy consumption income and foreign trade in the case of second long run relationship income is determined by carbon emissions energy consumption and foreign trade an augmented form of granger causality analysis is conducted amongst the variables the long run relationship of co2 emissions energy consumption income and foreign trade equation is also checked for the parameter stability the empirical results suggest that income is the most significant variable in explaining the carbon emissions in turkey which is followed by energy consumption and foreign trade moreover there exists a stable carbon emissions function the results also provide important policy recommendations

fertility volatility and growth abstract empirically growth rates are negatively correlated with birth rates they are also correlated with production risk we argue that these stylized facts are related and arise jointly from the decision of how many children to have in a risky environment

political and economic inequality and the environment abstract this paper analyzes and tests the hypothesis that political and economic equality result in lower levels of environmental degradation based on formal statements of the argument put forward by boyce r 1994 ecological economics 11 169 178 i show that equality may or may not be necessary to minimize degradation under some plausible conditions greater inequality may even be conducive to lower degradation actual results depend primarily on the intersection between the distribution of preferences across groups and the institutional rules two cross national empirical tests tend to support the contention that distributional issues do not systematically explain variations in environmental quality the results reinforce the conclusion that assumptions about the structure of preferences and workings of social choice institutions ignore complex interactions which influence the relationship between degradation and equality

government size and macroeconomic stability abstract we analyze the effects of government size on output variability in the context of a rbc model in which government size is parameterized by the income tax rate and the share of government purchases in output the model implies that i income taxes are destabilizing and ii for most specifications considered government purchases are stabilizing we compare those predictions with the results of simple cross country regressions using data for 22 oecd countries the estimated relationship between empirical indicators of government size and measures of gdp variability appears far stronger than the model predicts and often has the opposite sign

confronting the environmental kuznets curve t he environmental kuznets curve posits an inverted u relationship between pollution and economic development kuznets s name was apparently attached to the curve by grossman and krueger 1993 who noted its resemblance to kuznets s inverted u relationship between income inequality and development in the first stage of industrialization pollution in the environmental kuznets curve world grows rapidly because people are more interested in jobs and income than clean air and water communities are too poor to pay for abatement and environmental regulation is correspondingly weak the balance shifts as income rises leading industrial sectors become cleaner people value the environment more highly and regulatory institutions become more effective along the curve pollution levels off in the middle income range and then falls toward pre industrial levels in wealthy societies the environmental kuznets curve model has elicited conflicting reactions from researchers and policymakers applied econometricians have generally accepted the basic tenets of the model and focused on measuring its parameters their regressions typically fitted to cross sectional observations across countries or regions suggest that air and water pollution increase with development until per capita income reaches a range of 5000 to 8000 when income rises beyond that level pollution starts to decline as shown in the conventional ekc line in figure 1 in developing countries some policymakers have interpreted such results as conveying a message about priorities grow first then clean up numerous critics have challenged the conventional environmental kuznets curve both as a representation of what actually happens in the development process and as a policy prescription some pessimistic critics argue that crosssectional evidence for the environmental kuznets curve is nothing more than a

risk optimal government finance and monetary policies in a growing economy optimal tax and monetary policies in a stochastic monetary growth model are investigated our findings are of three general types first both capital income taxes and monetary growth are shown to influence the economy through effective risk adjusted measures expressed as a linear function of their respective means and variances second two stochastic neutrality results relating to money and bonds the two nominal assets in the economy are identified third optimal policy rules relating to taxes bond finance and money creation are characterized an essential component of optimal financial policy is a risk adjusted balanced budget

does urbanization lead to more direct and indirect household carbon dioxide emissions evidence from china during 1996 2012 china is experiencing a stage of rapid urban development the energy consumption and related carbon dioxide emissions of households continue to increase this paper calculates direct and indirect carbon dioxide emissions of households based on the input output method in china from 1996 to 2012 the results reveal that there were more total carbon dioxide emissions from urban households than from rural households far more indirect emissions from urban households than from rural households slightly more direct emissions from urban households than from rural households and differences in direct carbon dioxide emissions from various fuels and in indirect emissions from various sectors between urban and rural households to examine the causal relationship between urbanization and the carbon dioxide emissions of households cointegration and granger causality tests are applied a unidirectional causal relation was found running from urbanization to both direct and indirect household carbon dioxide emissions and the direct and indirect carbon dioxide emissions of households would increase 2 9 and 1 1 respectively for every increase of one percent in urbanization we discuss the reasons of why the development of urbanization will lead to more household direct and indirect carbon dioxide emissions and suggest certain policy implications for urbanization and carbon dioxide emissions based on the results of this study

international spillovers productivity growth and openness in thailand an intertemporal general equilibrium analysis thailand has experienced economic growth well above world averages for about 40 years it is a challenge to understand the sources of this high growth path and in particular why growth has not slowed down with assumed decreasing returns to capital we develop an intertemporal general equilbrium model separating between agriculture and industry and with open capital market and endogenous productivity growth to analyze the underlying adjustment mechanisms foreign technology spillover embodied in trade is assumed to be the driving force of the productivity growth consistent with available econometric evidence the high growth experience is understood as a transition path with interaction between productivity growth openness and capital investment counterfactual analysis shows how protection may have had serious detrimental effect on growth rate due to productivity and investment slowdown the role of relative prices in constraining growth is investigated inspired by the acemoglu ventura hypothesis of growth slowdown due to terms of trade effect in our setting low elasticity between domestic and exports goods in supply leads to large relative price shifts for domestic goods but promotes investment and growth during transition

south korean green growth and the jevons paradox an assessment with democratic and degrowth policy recommendations the policy instruments at the core of the notion of green growth are central to south korea s national strategy for green growth nsgg 1 green stimulus packages 2 price based or market corrective policies and 3 green research and development to bring about a technological shift that increases resource efficiency and the use of renewable energy sources this assessment of the nsgg explores the potentials and limitations of 3 in light of the jevons paradox the commonly found association between improved efficiency and increased resource use greenhouse gas ghg emissions and total energy use have increased since the implementation of the nsgg despite overall improvements in energy efficiency we argue that the jevons paradox is a fundamental limitation of the nsgg and suggest policy alternatives to the nsgg 1 increased public participation in environmental decision making and 2 economic degrowth

a critical appraisal of mckinnon s complementarity hypothesis does the real rate of return on money matter for investment in developing countries this is the post print version of the final paper published in world development the published article is available from the link below changes resulting from the publishing process such as peer review editing corrections structural formatting and other quality control mechanisms may not be reflected in this document changes may have been made to this work since it was submitted for publication copyright 2009 elsevier b v

portfolio choice with non expected utility in continuous time non expected utility preferences which can distinguish intertemporal substitution from attitudes towards risk are extended to continuous time the consumption savings and portfolio problem is solved for constant intertemporal elasticity of substitution and constant relative risk aversion

consumption and asset returns under non expected utility abstract this paper implements on quarterly time series data for israel the orthogonality conditions derived from an intertemporal consumption based asset pricing model with non expected utility the model s restrictions are not rejected by the sample information and there is evidence against the commonly used expected utility formulation

equilibrium consumption and precautionary savings in a stochastically growing economy abstract the derivation of a closed form solution for consumption based on the constant elasticity utility function in the presence of stochastic labor income has proved to be intractable this paper derives a closed form equilibrium relationship between consumption and wealth one that holds along a balanced growth path in a stochastic romer endogenous growth model by employing more general recursive preferences we can disentangle the coefficient of relative risk aversion from the intertemporal elasticity of substitution the effects of key structural parameters on equilibrium consumption and its tradeoff with leisure are analyzed a significant aspect of our analysis concerns the extent to which current risk in the economy is shared between labor and capital this plays an important role in determining the impact of risk on the economy in general and on consumption in particular formal analysis is supplemented with extensive numerical simulations

the effect of democracy on co2 emissions in emerging countries does the level of income matter abstract using quantile regression technique this paper explores the interaction effects of democracy and income on co2 emissions in 19 emerging countries over the period 1997 2010 the results indicate a stronger and significant interaction impact on co2 emissions only at the lower emission countries moreover democracy reduces co2 emissions but only if the country has already reached to a certain income level the new empirical evidence from this study provides a more complete picture of the determinants of emissions throughout the conditional distribution and these novel findings not only help advance the existing literature but also can be of special interest to the country s policy makers especially among the most democracy and least democracy nations

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

non renewable and renewable energy consumption and co2 emissions in oecd countries a comparative analysis abstract this paper attempts to explore the determinants of co 2 emissions using the stirpat model and data from 1980 to 2011 for oecd countries the empirical results show that non renewable energy consumption increases co 2 emissions whereas renewable energy consumption decreases co 2 emissions further the results support the existence of an environmental kuznets curve between urbanisation and co 2 emissions implying that at higher levels of urbanisation the environmental impact decreases therefore the overall evidence suggests that policy makers should focus on urban planning as well as clean energy development to make substantial contributions to both reducing non renewable energy use and mitigating climate change

exchange rate determination and asset prices in a stochastic small open economy abstract this paper constructs a stochastic general equilibrium model of a small open economy consisting of risk averse optimizing agents the stochastic processes describing the rate of monetary growth government expenditure private production and the foreign price level are taken to be exogenous determining all asset risks and returns and the equilibrium stochastic process describing the domestic inflation rate and the exchange rate the model is used to examine the effects of the means and variances of policy shocks on the equilibrium and the determinants of the foreign exchange risk premium

monetary randomness and investment abstract this paper develops a neoclassical model in which the behavior of the money supply affects investment by affecting the real distribution of asset returns investment depends on wealthholders demand for capital a stochastic money growth rule influences portfolio choice by affecting the distribution of the inflation rate the variance of inflation matters to wealthholders because of the existence of assets with returns that are not indexed to changes in the price level money and bonds which are contracted in nominal terms in a rational expectations environment asset demands will thus be sensitive to the distribution of the money growth rate our principle conclusion is that an increase in the variance of the money growth rate lowers investment which complements tobin s 1965 result that an increase in the mean stimulates capital accumulation the paper also represents a step toward incorporating an asset market into a macroeconomic model in a manner which takes account of lucas 1976 criticism of econometric policy evaluation all variables in the model including asset return distributions are functions of technology preferences and the money supply rule further expectations are rational

wealth varying intertemporal elasticities of substitution evidence from panel and aggregate data abstract this paper constructs and estimates a model of consumer preferences in which the intertemporal elasticity of substitution ies of consumption expenditure rises with the level of wealth the purpose of this paper is to measure the effect that systematic variation in the ies of poor and rich consumers has on the ies of aggregate consumption expenditure we find economically significant differences in the ies of poor and rich consumers in indian panel data on the consumption of individual households we also find economically significant differences in the ies measured in aggregate time series data for the u s and india

the effect of environmental information disclosure on environmental quality evidence from chinese cities abstract this paper attempts to provide a more systematic view of the relationship between environmental information disclosure eid and environmental consequences to reconcile the existing conceptual controversy and empirical inconclusiveness hence using a panel data of 113 major chinese key environmental protection cities from 2008 to 2018 this study adopts the estimations of dynamic generalized method of moments gmm quantile regression panel threshold model and dynamic spatial durbin model sdm to investigate the effect of eid on environmental quality the non spatial empirical results indicate that eid exerts a positive influence on environmental quality in a particular region and there is a double threshold for the impact of eid this impact becomes pronounced and then strengthened when the level of economic development reaches critical threshold values moreover the first order lag effect of environmental quality and spatial autocorrelation are needed to be incorporated in terms of spatial econometric estimation the results show a positive direct while negative indirect relationship between eid and environmental quality making the total effect nearly zero these findings are evidenced in both the short term contemporaneous and long term cumulative span which reveals so called beggar thy neighbor as well as a zero sum game among local governments overall this study highlights the crucial role of eid in affecting environmental quality and calls for a mutually beneficial coordination between regions

capital income taxation and risk taking in a small open economy abstract how do capital income taxes affect household portfolio choice and growth we approach this question within the context of a stochastic model of a small open economy in which taxes on income from domestic capital equity and foreign bonds affect household portfolio choice welfare and the growth rate of the economy the theoretical and numerical analysis demonstrates the important role that risk plays in determining the mean and variability of growth as well as the conditions under which a higher tax rate can be welfare improving to shed more light on the complex theoretical interaction between taxes and risk taking we estimate a reduced form multinomial probit model of household portfolio choice using the method of simulated moments the empirical evidence is in stark contrast to the conventional wisdom we find that higher taxes make it less likely that the household will hold risky assets

fiscal policy inflation and the accumulation of risky capital the effect of government policies on the level of investment and inflation has become a major concern of policy makers in a number of industrial countries proposals to raise the level of business investment have included overall tax cuts tax incentives to spur investment and a reduction in the level of government spending this paper presents a theoretical apparatus to explore the relationships between fiscal policy government debt inflation and capital accumulation it develops a one sector growth model embodying a stochastic production function and government fiscal policy atomistic agents in the economy choose consumption levels and allocate their wealth between risky capital and risky government debt to maximize expected discounted utility over an infinite horizon fiscal policy by affecting asset yields affects the composition of portfolios the price of government bonds and the accumulation of capital the model is used to answer three general questions 1 does the level of government expenditure affect the rate of capital accumulation and inflation in steady state 2 does the mode of government finance when the choice is between an income tax and deficit finance affect these magnitudes 3 what is the effect of uncertainty in the productivity of capital on growth the analysis relates to several areas of literature 1 the analysis of the relationship between capital accumulation and debt 2 the theory of the demand for government debt 3 considerations of the effect of income taxation on risk bearing and 4 the analysis of capital accumulation under uncertainty 1 the effects on output and the capital stock of the government s expenditure decision and its decision to finance its expenditure by taxation or debt issue are explored in two major bodies of economic theory the literature on the burden of the debt as developed by modigliani 1961 diamond 1965 and phelps and shell 1969 for example implies that policies which increase the value of outstanding government debt will tend to lower the level of the capital stock by displacing capital with public debt in private wealth the theory of money and growth as represented by tobin 1965 and sidrauski 1967b also implies that government debt displaces capital but specifically recognizes the role of capital gains on government debt

corruption and the environmental kuznets curve empirical evidence for sulfur abstract we investigate how corruption influences the income level at the turning point of the relationship between sulfur emissions and income using a wide cross national panel of countries at different levels of development and with different degrees of corruption our results support the environmental kuznets curve hypothesis for sulfur we find evidence that the higher the country s degree of corruption the higher the per capita income at the turning point suggesting different income pollution paths across countries due to corruption we build upon a new specification for the ekc developed by bradford et al 2005 that avoids using nonlinear transformations of potentially nonstationary regressors in panel estimation also we account for the indirect impact of corruption on emissions through its impact on per capita income our main findings remain unchanged when we investigate additional heterogeneity allowing for different income slopes across richer and poorer countries

the environmental kuznets curve ekc theory part b critical issues according to the environmental kuznets curve ekc theory the process of economic growth is expected to limit the environmental degradation created in the early stages of development the first article of this study reviews the empirical studies examining various factors other than income that may lead to an ekc pattern the current article reviews in the first part the major critiques on the ekc speculation which relate to the following issues the normal distribution of world income the feedback from environmental degradation to economic growth the characteristics of the pollutant in question various econometric issues the evolution of consumption when income rises and the assumption about a common developmental pattern in all countries the second part discusses additional matters reported indirectly in the literature and or must be further examined there are doubts whether the gdp series captures the transition of production to the three productive sectors in empirical estimations and whether services are less polluting compared to industry activities finally the original kuznets theory which laid the groundwork for the ekc concept does not seem to solve income inequality problems

democracy and environmental quality we develop and estimate an econometric model of the relationship between several local and global air pollutants and economic development while allowing for critical aspects of the socio political economic regime of a state we obtain empirical support for our hypothesis that democracy and its associated freedoms provide the conduit through which agents can exercise their preferences for environmental quality more effectively than under an autocratic regime thus leading to decreased concentrations or emissions of pollution however additional factors such as income inequality age distribution education and urbanization may mitigate or exacerbate the net effect of the type of political regime on pollution depending on the underlying societal preferences and the weights assigned to those preferences by the state

the heterogeneous effect of democracy political globalization and urbanization on pm2 5 concentrations in g20 countries evidence from panel quantile regression abstract pm2 5 emissions have serious adverse impacts on health and impede transport activities especially air and highway consequently policymakers and economists have focused on this issue the primary objective of this study is to investigate the effect of democracy political globalization and urbanization on pm2 5 concentrations within g20 countries ecological modernization theory is used to gain the best understanding of the impact of these driving forces on pm2 5 concentrations and obtains an analytical framework the method utilized is the panel quantile regression which takes into account the unobserved individual and distributional heterogeneity the results demonstrate that first the direct effect of democracy on pm2 5 concentrations is significantly positive in countries with higher emissions and has no impact on lower emission countries second the direct effect of political globalization on pm2 5 concentrations is significantly positive and especially greater in extremely low and high emission countries third persuasive evidence proves the existence of an environmental kuznets curve between urbanization and pm2 5 concentrations additionally this paper further assesses the direct and indirect influence mechanisms of democracy and political globalization on pm2 5 concentrations across pollution levels both have a positive negative indirect effect on pm2 5 concentrations in countries with higher lower emissions through its effect on gdp per capita the total effect appears positive suggesting that the increase in democracy and political globalization degrade environmental quality these results provide policymakers with critical policy recommendations that contribute to the reduction of pm2 5 concentrations and ensure sustainable economic development in the g20 countries

re examining the environmental kuznets curve hypothesis in the economic community of west african states a panel quantile regression approach abstract this study investigates the validity of the environmental kuznets curve ekc hypothesis for six west african countries over 1970 2017 while using human capital and biocapacity as additional determinants of carbon emissions it uses the panel quantile regression method that provides robust results in case the classical econometric assumptions fail the empirical results revealed that a u shaped relationship between economic growth and carbon dioxide co2 emissions holds in the low middle and high emissions countries as opposed to the inverted u shaped ekc hypothesis trade openness reduces environmental performance in low emission countries financial development has mixed impacts on co2 emissions across the quantiles while financial development enhances environmental quality in the low emissions countries it exerts a detrimental impact in the middle and high emissions countries human capital has significantly positive effects on the lower middle and upper quantiles the obtained results highlight the need for raising environmental awareness and promoting green r d in addition relevant incentives are required to redirect private credits towards green projects and renewable energy development

taxation risk taking and growth a continuous time stochastic general equilibrium analysis with labor leisure choice abstract this paper investigates the equilibrium relationship between taxation portfolio choice risk taking and capital accumulation specifically it examines how taxes affect risk taking and capital accumulation we extend the existing literature by relaxing two crucial assumptions in modelling risk taking behavior i that the investment opportunity set is fixed and ii that there is no distinction between attitudes towards risk and behavior towards intertemporal substitution we extend the investment opportunity set of individuals through optimally determined human capital and distinguish intertemporal substitution from attitudes towards risk via a recursive utility function in the presence of these extensions the paper successfully derives a closed form solution to the stochastic growth model with stochastic wage income

corruption income and the environment an empirical analysis abstract in response to the recent growth of a largely theoretical body of literature analysing the linkages between corruption and pollution this paper subjects the corruption pollution relationship to a detailed empirical examination a distinction is drawn between the direct impact of corruption on pollution and the indirect impact which operates through corruption s impact on per capita income and the resultant impact of income on pollution using data for 94 countries covering the period 1987 2000 both direct and indirect impacts of corruption on air pollution emissions are estimated for both sulfur dioxide and carbon dioxide corruption is estimated to have a positive direct impact on per capita emissions indirect effects are found to be negative and larger in absolute value than direct effects for the majority of the sample income range as a result the total effect of corruption on emissions is negative for all but the highest income countries in the sample

the impact of urbanization on co2 emissions evidence from developing countries abstract this paper analyzes the impact of urbanization on co2 emissions in developing countries from 1975 to 2003 it contributes to the existing literature by examining the effect of urbanization taking into account dynamics and the presence of heterogeneity in the sample of countries the results show an inverted u shaped relationship between urbanization and co2 emissions indeed the elasticity emission urbanization is positive for low urbanization levels which is in accordance with the higher environmental impact observed in less developed regions among our contributions is the estimation of a semi parametric mixture model that allows for unknown distributional shapes and endogenously classifies countries into homogeneous groups three groups of countries are identified for which urbanization s impact differs considerably for two of the groups a threshold level is identified beyond which the emission urbanization elasticity is negative and further increases in the urbanization rate do not contribute to higher emissions however for the third group only population and affluence but not urbanization contribute to explain emissions the differential impact of urbanization on co2 emissions should therefore be taken into account in future discussions of climate change policies

population growth and economic growth a reconsideration abstract in an endogenous growth model endogenous fertility a neo malthusian relation emerges only when all exogenous variables are controlled for this suggests that conflicting findings in the literature may originate from heterogeneity in unobserved variables in cross country panel data sets

currency substitution under nonexpected utility some empirical evidence this paper derives and tests the restrictions implied by an optimizing model of currency substitution under nonexpected utility using quarterly data for israel from 1978 to 1988 we find that the elasticity of intertemporal substitution is less than one the elasticity of currency substitution is greater than one relative risk aversion is about seven and the elasticity of currency substitution is greater than the intratemporal elasticity of substitution between consumption and liquidity services in most cases the evidence supports the hypothesis of nonexpected utility as well as the inclusion of liquidity services in the representative agent s objective function the methodology of this paper can be applied to other interesting cases of currency substitution copyright 1993 by ohio state university press

reducing carbon emissions the role of renewable energy and democracy abstract the global economy continues to witness a consistent increase in carbon emissions making it difficult to achieve the paris agreement on climate change to inform policies to mitigate carbon emissions it is crucial to understand the factors that influence it while there is a vast literature on the impact of economic growth on carbon emissions empirical research on the impact of democracy and renewable energy on environmental quality in developing countries remains limited therefore the goal of this paper was to examine the impact of democracy and renewable energy on carbon emissions for 46 sub saharan african countries using unbalanced data for the period of 1980 2015 using an instrumental variable generalised method of the moment the study found that democracy and renewable energy reduce carbon emissions additionally foreign direct investment trade openness population and economic growth were the forces behind carbon emissions in sub saharan africa however when democracy is accounted for economic growth turns to reduce carbon emissions no evidence of environmental kuznets curve was found the results further indicated that the impact of urbanization on carbon emissions is indeterminate these results are robust when alternative econometric estimation techniques were used the study further demonstrated that the level of economic development matters when assessing the impact of these variables on carbon emissions the study therefore recommends that democracy and investment in renewable energy should be given priority on africa agenda to mitigate climate change

feasibility and transversality conditions for models of portfolio choice with non expected utility in continuous time abstract this note explores the feasibility and transversality conditions for the continuous time consumption portfolio problem with generalized isoelastic gie preferences unlike the case of time separable preferences the transversality condition usually is neither necessary nor sufficient for the feasibility condition to be satisfied furthermore ordinally equivalent representations of gie preferences produce different transversality conditions

an intertemporal consumption leisure model with non expected utility abstract this paper tests an intertemporal consumption leisure model with non expected utility there is evidence to reject the commonly used expected utility specification and to accept the non expected utility one as the model s restrictions are not rejected by the data

effects of political institutions on air quality we empirically test existing theories on the provision of public goods in particular air quality using data on sulfur dioxide so2 concentrations from the global environment monitoring projects for 107 cities in 42 countries from 1971 to 1996 the results are as follows first we provide additional support for the claim that the degree of democracy has an independent positive effect on air quality second we find that among democracies presidential systems are more conducive to air quality than parliamentary ones third in testing competing claims about the effect of interest groups on public goods provision in democracies we establish that labor union strength contributes to lower environmental quality whereas the strength of green parties has the opposite effect

endogenous fertility multiple growth paths and economic convergence abstract this paper extends the cass koopmans optimal growth model to allow for endogenous fertility choice it is shown that if agents choose their fertility rate then the net rate of return on capital marginal product of capital minus the population growth rate may not be monotonically decreasing in capital in this case multiple steady states and growth paths may emerge which can explain the persistent differentials in income between poor and rich countries as well as the existence of development miracles and disasters the paper provides also empirical evidence which supports the existence of multiple convergence groups and is consistent with the theoretical model

financing clean energy projects through domestic and foreign capital the role of political cooperation among the eu the g20 and oecd countries abstract there is a growing concern among both individuals and policy makers in relevance to increasing co 2 emissions across the world as a result international organizations have started to pressurize economies to minimize their carbon emissions by increasing the share of clean energy consumption in total energy use hence the goal of this paper is to empirically explore to what extent both domestic stock market and foreign fdi inflows capital affect clean energy uses across the eu the g20 and oecd spanning the period 1993 2012 the results of long run elasticities document that both fdi and stock market developments play a significant role in promoting clean energy uses across all three country groups the results also suggest that clean energy consumption has a considerable positive and negative effect on economic output and co 2 emissions respectively while the political globalization has a substantial negative impact on carbon emissions across the eu the g20 and oecd economies

volatility and investment interpreting evidence from developing countries we uncover a significant negative correlation between various volatility measures and private investment in developing countries even when adding the standard control variables no such correlation is uncovered when the investment measure is the sum of private and public investment spending indeed public investment spending is positively correlated with some ineasures of volatility these findings suggest that the detrimental impact of volatility on investment may be easier to detect using disaggregated data we provide several possible interpretations for our findings nonlinearities in preferences or budget constraints can cause volatility to have first order negative effects on private investment