optimal pricing of intraday liquidity abstract this paper presents a general equilibrium model where intraday liquidity is needed because the timing of payments is uncertain a necessary and sufficient condition for an equilibrium to be efficient is that the nominal intraday interest rate be zero even when the overnight rate is strictly positive because a market for liquidity may not achieve efficiency this creates a role for the central bank i allow for the possibility of moral hazard and study policies commonly used by central banks to reduce their exposure to risk i show collateralized lending achieves the efficient allocation while for certain parameters caps cannot prevent moral hazard

competitive equilibria and the core of overlapping generations economies this paper analyzes whether the well known result that for arrow debreu economies all competitive equilibria belong to the core holds true in overlapping generations economies in these economies competitive equilibria are not a subset of the core we define the classical set as the set of all those competitive allocations which cannot be affected by a monetary tax transfer policy then we demonstrate that every competitive equilibrium in the classical set belongs to the core of the economy further we show that for large economies no monetary equilibrium belongs to the core journal of economic liferature classification numbers 021

energy consumption carbon emissions and economic growth in saudi arabia an aggregate and disaggregate analysis the objective of this study is to examine the relationship among economic growth carbon emissions and energy consumption at the aggregate and disaggregate levels for the aggregate energy consumption model we use total energy consumption per capita and co2 emissions per capita based on the total energy consumption for the disaggregate analysis we used oil gas and electricity consumption models along with their respective co2 emissions the long term income elasticities of carbon emissions in three of the four models are positive and higher than their estimated short term income elasticities these results suggest that carbon emissions increase with the increase in per capita income which supports the belief that there is a monotonically increasing relationship between per capita carbon emissions and per capita income for the aggregate model and for the oil and electricity consumption models the long and short term income elasticities of carbon emissions are negative for the gas consumption model this result indicates that if the saudi arabian economy switched from oil to gas consumption then an increase in per capita income would reduce carbon emissions the results also suggest that electricity is less polluting than other sources of energy

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

co2 emissions energy consumption and economic growth in bric countries abstract this paper examines dynamic causal relationships between pollutant emissions energy consumption and output for a panel of bric countries over the period 1971 2005 except for russia 1990 2005 in long run equilibrium energy consumption has a positive and statistically significant impact on emissions while real output exhibits the inverted u shape pattern associated with the environmental kuznets curve ekc hypothesis with the threshold income of 5 393 in logarithms in the short term changes in emissions are driven mostly by the error correction term and short term energy consumption shocks as opposed to short term output shocks for each country short term deviations from the long term equilibrium take from 0 770 years russia to 5 848 years brazil to correct the panel causality results indicate there are energy consumption emissions bidirectional strong causality and energy consumption output bidirectional long run causality along with unidirectional both strong and short run causalities from emissions and energy consumption respectively to output overall in order to reduce emissions and not to adversely affect economic growth increasing both energy supply investment and energy efficiency and stepping up energy conservation policies to reduce unnecessary wastage of energy can be initiated for energy dependent bric countries

environmental kuznets curve in romania and the role of energy consumption abstract the aim of present study is to probe the dynamic relationship between economic growth energy consumption and co 2 emissions for period of 1980 2010 in case of romania in doing so ardl bounds testing approach is applied to investigate the long run cointegration between these variables our results confirm long run relationship between economic growth energy consumption and energy pollutants the empirical evidence reveals that environmental kuznets curve ekc is found both in long and short runs in romania further energy consumption is major contributor to energy pollutants democratic regime shows her significant contribution to decline co 2 emissions through effective implementation of economic policies and financial development improves environment i e reduces co 2 emissions by redirecting the resources to environment friendly projects

income inequality and co2 emissions in the g7 1870 2014 evidence from non parametric modelling abstract we examine whether income inequality effected carbon emissions in what are now the world s wealthiest countries over the period 1870 2014 employing a non parametric panel estimation method with cross sectional and time varying coefficients we find that the relationship between income inequality and co2 emissions is highly non linear in terms of signs and significance the nonparametric coefficient function for income inequality is found to vary over the period 1870 2014 income inequality exhibits a significant positive effect from 1870 to 1880 and a significant negative impact from 1950 to 2000 on co2 emissions we also find that for extended periods between 1881 and 1949 and between 2000 and 2014 there is no significant relationship between the two variables

technological change and the rebound effect in the stirpat model a critical view abstract technological change is key to understand the explanatory variables behind environmental impacts in the context of the stirpat stochastic impacts by regression on population affluence and technology model an adequate representation and analysis of the significance of the technology variable t in the stirpat model becomes crucial even more if one aims to better understand underlying processes such as the environmental rebound effect e re a critical review of the application of the stirpat model has been conducted to understand the diversity and value of the variables scopes assumptions statistical approaches and the environmental impacts commonly studied the findings highlight that despite the multiple applications and the high potential of the stirpat model inconclusive results and or knowledge gaps remain notably 1 a geographical imbalance in the scope of studies 2 the almost exclusive focus on carbon emissions 3 a lack of agreement on the choice of data additional explanatory variables and regression models 4 a lack of consensus on how to approximate t and 5 a lack of explicit analyses of the e re our findings are useful to both policymakers and academics for method design further research and policy evaluation

the impact of natural disaster on energy consumption international evidence abstract this research shows that natural disasters may hurt energy consumption by using data on 123 countries over the period 1990 2015 and classifying them according to their economic development level and region based on world development indicators we employ a two step system gmm method to examine the effect of natural disasters on energy consumption presenting findings that support our hypotheses in the models and show a strong negative effect for low income countries or those in the africa region after considering an alternative proxy for natural disaster we implement quantile regression methods their results find that natural disasters exhibit a negative and significant impact on oil renewable and nuclear energy consumptions the quantile regression models used in the robustness check present that the effects are stronger for low level energy consumption economies

is aggregate domestic consumption spending adcs per capita determining co2 emissions in south africa a new perspective aggregate domestic consumption spending is one of the prime drivers of economic progress that facilitates the process of industrialization international trade and innovation but its effect on the environment remains underresearched this paper proposes a novel framework to explain the impact of aggregate domestic consumption spending per capita adcsp on carbon dioxide emissions co2e in south africa using the autoregressive distributed lag ardl technique the results indicated that the adcsp determines co2e in the short run sr and long run lr from adcsp to carbon intensity adcsp ci estimations it was observed that an increase 1 in adcsp increases co2e in both the lr 0 31 and sr 0 22 furthermore the nardl estimations showed that the lr effects of positive shocks in the adcsp on co2e are comparatively stronger than the sr effects the paper offers important policy implications for academics theorists and policymakers

the economic and financial gains from water markets in chile abstract chile is one of the few countries that has encouraged the use of markets in water resource management in order to assess the impact of water markets and transactions costs in chile four river valleys the maipo elqui limari and the azapa were selected as case studies transactions from the elqui and limari valleys during the years 1986 to 1993 were analyzed to determine the gains from trade from market transfers in the economic and financial analysis of water markets crop budgets were used to estimate the value of water in agricultural production the value of water use rights to urban water supply companies was estimated using the avoided cost of an alternative investment in a water storage reservoir the analysis demonstrated that the market transfer of water use rights does produce substantial economic gains from trade in both the elqui and limari valleys these economic gains produce rents for both buyers and sellers but buyers especially farmers growing profitable crops who buy water use rights and individuals buying water use rights for potable water supply receive higher rents then sellers large table grape producers in the limari valley and individuals buying water for human consumption in the elqui valley received the highest rents in the elqui valley net gains from trade per share were within the range of recent transfer prices of us 1000 in the limari valley gains from trade per share are 3 4 times the recent prices of us 3000 for a share of water from the cogoti reservoir where trading was active especially in the limari valley transactions costs have not presented an appreciable barrier to trading nonetheless in the large canal systems with fixed flow dividers in the elqui and maipo valley there have been very few transactions various factors contribute to the lack of trading but the absence of trading in these large canal systems highlights the costs of modifying fixed infrastructure especially for trades between farmers

on the causal dynamics between emissions nuclear energy renewable energy and economic growth this paper examines the causal relationship between co2 emissions nuclear energy consumption renewable energy consumption and economic growth for a group of 19 developed and developing countries for the period 1984 2007 using a panel error correction model the long run estimates indicate that there is a statistically significant negative association between nuclear energy consumption and emissions but a statistically significant positive relationship between emissions and renewable energy consumption the results from the panel granger causality tests suggest that in the short run nuclear energy consumption plays an important role in reducing co2 emissions whereas renewable energy consumption does not contribute to reductions in emissions this may be due to the lack of adequate storage technology to overcome intermittent supply problems as a result electricity producers have to rely on emission generating energy sources to meet peak load demand

clearinghouse banks and banknote over issue abstract the paper presents a model of banks as clearinghouses of private debt where money is used as the means of payment implications of the model include i the private provision of banknotes or a discount window may be needed to avoid the insufficient debt clearing that results from an inflexible currency stock and ii an uncontrolled total money stock may result in a multiplicity of equilibria including an inflationary banknote over issue

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

export product diversification and co2 emissions contextual evidences from developing and developed economies abstract ascertaining cleaner production and sustainability is a major issue in the developed and developing world income and international trade are the predominant factors behind this this article explores the heterogeneous impacts of export product diversification extensive margin and intensive margins on the co2 emissions for developing and developed countries to this end the authors analyze the annual data of variables from 1971 to 2014 and employ unrestricted fixed effects and system gmm to solve the research problem the empirics suggest that all three indicators of export diversification significantly reduce co2 emissions in 63 developed and developing countries as a global sample the fixed effect models reveal that product diversification and intensive margin have a negative and significant impact in developed economies the negative impacts of product diversification show that economic sophistication is an important tool to reduce emissions further the chow test proved the statistical difference between developed and developing economies which contributes to policy recommendations based on the empirical outcomes the study suggests innovative policies for cleaner production and industrial manufacturing purposes making the policies more effective in achieving sustainable development goals sdgs

irrigation districts and water markets an application of cooperative decision making theory water supply organizations control a large portion of agricultural water rights in the western u s this paper applies cooperative and club theory models to analyze the response of these organizations to potential rural to urban water transfers application of the models is to a proposed water trade between southern california s imperial irrigation district and metropolitan water district the analysis reveals that substantial intraorganizational conflict can emerge in response to specific transfer proposals and this conflict may be sufficient to defeat or delay otherwise beneficial transfers poorly defined property rights and a failure to align these rights with operational control in the water supply organization are pinpointed as key sources of conflict

economies with many commodities we discuss the two fundamental theorems of welfare economics in the context of the arrow debreu mckenzie model with an infinite dimensional commodity space as an application we prove the existence of competitive equilibrium in the standard single agent growth model

environmental kuznets curve for co2 emissions the case of arctic countries abstract the main new contribution of this paper is to examine the environmental kuznets curve ekc hypothesis using time series data at individual country levels empirical focus is on the assessment of income per capita on co 2 emissions in the arctic countries by taking into account the role of energy consumption an autoregressive distributed lag ardl modeling approach to cointegration is applied to annual data for the period 1960 2010 the results provide little evidence of the existence of the ekc hypothesis for the arctic countries we also find that economic growth has a beneficial effect on the environment only in some arctic countries finally energy consumption is found to have a detrimental effect on the environment in most countries

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

private capital flows capital controls and default risk abstract what has been the effect of the shift in emerging market capital flows toward private sector borrowers are emerging market capital flows more efficient if not can controls on capital flows improve welfare this paper shows that the answers depend on the form of default risk when private loans are enforceable but there is the risk that the government will default on behalf of all residents private lending is inefficient and capital controls are potentially pareto improving however when private agents may individually default capital flow subsidies are potentially pareto improving

the role of trade and fdi for co2 emissions in turkey nonlinear relationships abstract this paper examines the effects of foreign trade and foreign direct investment fdi on co 2 emissions in turkey we consider linear and nonlinear ardl models and find significant asymmetric effects of exports imports and fdi on co 2 emissions per capita however fdi has no statistically significant long run effects in the long run decreases in exports reduce co 2 emissions per capita but increases in exports have no statistically significant effects increases in imports push up co 2 emissions per capita while decreases in imports have no long run effects on the other hand co 2 intensity which measures co 2 emissions per unit of energy is not influenced by exports and imports nor by fdi instead it is affected positively by financial development and urbanization also we find that an environmental kuznets curve is present for both co 2 measures so that increases in real gdp per capita have led to reductions in co 2 emissions for at least the most recent decade controlling for other confounding factors furthermore the sectoral shares of co 2 emissions in total co 2 emissions change asymmetrically with foreign trade for two of four sectors with export increases leading to lower co 2 shares and imports having the opposite effect

on the empirical relevance of condorcet s paradox condorcet s paradox occurs when there is no alternative that beats every other alternative by majority the paradox may pose real problems to democratic decision making such as decision deadlocks and democratic paralysis however its relevance has been discussed again and again since the celebrated works of arrow social choice and individual values 1963 and black the theory of committees and elections 1958 the discussion varies from one extreme to the other from very relevant to practically irrelevant this paper tries to bring more clarity to the discussion by reviewing the literature on the empirical relevance of condorcet s paradox since a definition of the paradox for even numbers of voters and alternatives and for weak voter preferences is missing in the literature we first define the paradox clearly and simply then three topics are investigated namely domain conditions culture and the likelihood of the paradox and the empirical detection of the paradox domain conditions express regularities in voter preference profiles that prevent the paradox frequent observations of these domain conditions would make condorcet s paradox empirically less important cultures define probability distributions over the set of voter preferences observation of cultures might be a first step to indicate the relevance of the paradox the empirical detection of the paradox speaks for itself we will try to identify the number of observations of the paradox so far the overall conclusion is that the empirical relevance of condorcet s paradox is still unsettled

is economic growth good or bad for the environment empirical evidence from korea abstract the effects of economic growth on the environment in korea for a given level of energy consumption and fossil fuels and nuclear energy in electricity production are examined in a dynamic cointegration framework to that end the autoregressive distributed lag ardl approach is used we find empirical evidence supporting the existence of the environmental kuznets curve ekc hypothesis for korea that is economic growth indeed plays a favorable role in influencing environmental outcomes it is also found that in both the short and long run nuclear energy has a beneficial effect on environmental quality whereas fossil fuels in electricity production and energy consumption have a detrimental effect on the environment

co2 emissions energy consumption trade and income a comparative analysis of china and india in order to prevent the destabilisation of the earth s biosphere co2 emissions must be reduced quickly and significantly the causes of co2 emissions by individual countries need to be apprehended in order to understand the processes required for reducing emissions around the globe china and india are the two largest transitional countries and growing economies but are in two entirely different categories in terms of structural changes in growth trade and energy use co2 emissions from the burning of fossil fuels have significantly increased in the recent past this paper compares china and india using the bounds testing approach to cointegration and the ardl methodology to test the long and short run relationships between growth trade energy use and endogenously determined structural breaks the co2 emissions in china were influenced by per capita income structural changes and energy consumption a similar causal connection cannot be established for india with regard to structural changes and co2 emissions because india s informal economy is much larger than china s india possesses an extraordinarily large number of micro enterprises that are low energy consumers and not competitive enough to reach international markets understanding these contrasting scenarios is prerequisite to reaching an international agreement on climate change affecting these two countries

environmental kuznet s curve for india evidence from tests for cointegration with unknown structuralbreaks this study revisits the cointegrating relationship between carbon emission energy use economic activity and trade openness for india using threshold cointegration tests with a view to testing the environmental kuznet s curve hypothesis in the presence of possible regime shift in long run relationship of the variables for the period 1971 to 2008 the article confirms the existence of regime shift or threshold cointegration among the variables and environmental kuznet s curve for india it challenges previous empirical works for india which fail to establish cointegrating relationship among these variables and explains its logical and econometric reasons the study finds that the carbon emission is highly elastic with respect to real per capita income and energy use in india this finding is critical and warns successful design and execution of energy and environmental policy framework which would pave the low carbon sustainable growth path inindia

the econometric consequences of an energy consumption variable in a model of co2 emissions abstract many studies that model the determinants of co 2 emissions treat energy consumption as one of its determinants itkonen 2012 argues that this causes underestimation of both the responsiveness of co 2 emissions to income growth and the turning point of the carbon kuznets curve we first demonstrate that itkonen s 2012 conclusions are sensitive to the assumed form of the relationship between energy consumption and income we then argue that the presence of an energy consumption variable in a model of co 2 emissions can lead to systematic volatility in its coefficients which has the potential to change their magnitude and sign we also argue that misleading cointegration test results can be generated by such a model the potential nature and severity of these effects are illustrated with data for seven countries

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

the nexus between carbon emissions energy consumption and economic growth in middle east countries a panel data analysis abstract the environmental kuznets curve ekc hypothesis assumes that there is an inverted u shaped relationship between environmental degradation and income per capita in other words as a country grows it is assumed that its environmental quality improves in this study we aim to test the ekc hypothesis for 12 middle east countries during the period 1990 2008 by employing recently developed panel data methods our results provide evidence contrary to the ekc hypothesis we found evidence favorable to the u shaped ekc for 5 middle east countries whereas an inverted u shaped curve was identified for only 3 middle east countries furthermore there appear to be no causal links between income and co 2 emissions for the other 4 countries regarding the direction of causality there appears to be a unidirectional causality from economic growth to energy consumption in the short run in the long run however the unidirectional causality chain runs from energy consumption and economic growth to co 2 emissions we also suggest some crucial policy implications depending on these results

co2 emissions energy consumption and economic growth in the asean 5 countries a cross sectional dependence approach abstract we re examine the relationship between co2 emissions energy consumption ec and economic growth gdp for the five main association of southeast asian nations asean 5 countries over the period 1980 2016 our main contention is that the findings in previous studies that have examined the relationship between co2 ec and gdp in the asean 5 are biased because they fail to account for cross sectional dependence cd we show that conventional tests applied to our dataset suggest a misleading conclusion about the environmental kuznets curve ekc and granger causal relationship between co2 ec and gdp in the presence of cd when we apply a new panel test of granger non causality that addresses cd and heterogeneity we find considerable heterogeneity we find unidirectional granger causality running from gdp to co2 for malaysia the philippines singapore and thailand unidirectional causality running from gdp to ec in indonesia malaysia and thailand unidirectional causality running from ec to gdp in singapore and bidirectional causality between gdp and ec in the philippines we also find support for the ekc hypothesis for the asean 5 countries

sub optimality of the friedman rule in townsend s turnpike and stochastic relocation models of money do finite lives and initial dates matter abstract the friedman rule a widely studied prescription for monetary policy is optimal in townsend s turnpike model of money it is not so in the overlapping generations version of his stochastic relocation model of money we investigate these monetary models in the light of this disparity to this end we create a modified version of the turnpike model that generates the same stationary monetary equilibria as does the two period overlapping generations model with random relocation we exploit this equivalence to explain the aforementioned disparity we also discuss the importance of whether or not the economy has an initial date

payments systems design in deterministic and private information environments abstract the first setup we study is a deterministic model with spatial separation where we consider alternative payments systems institutions and their implications for allocation and welfare a payments system with period by period settlement in outside money improves on decentralized exchange an efficient allocation is supported by a payments system where settlement is not imposed in the second model there is random matching and unobserved productivity shocks and preference shocks we explore how risk should be shared optimally in this economy and interpret the results in terms of how actual payments systems should operate journal of economic literature classification numbers e4 e5

overlapping generations intermediation and the first welfare theorem abstract the first welfare theorem fails to hold for standard pure exchange overlapping generations economies because no agent exploits the profit opportunities which can arise from mediating intertemporal trade this paper modifies the standard economy by introducing an optimizing corporate intermediary which distributes net earnings back to consumer shareholders the pareto inefficient no trade state which is a stationary equilibrium for the standard economy cannot be an equilibrium for this modified brokerage economy because the intermediary perceives unbounded earnings opportunities if the intermediary seeks to maximize the minimum dividend per share distributed over time then there is a unique pareto efficient stationary equilibrium for the brokerage economy

active intermediation in a monetary overlapping generations economy abstract this paper establishes that the profit seeking activities of private intermediaries can ensure pareto efficiency in the standard pure exchange monetary overlapping generations economy without the need for government monetary or fiscal policy intervention moreover these profit seeking activities are shown to rule out all aperiodic and k periodic cycles for k greater than 2 contrary to much recent work on intermediation the profit opportunities that arise for intermediaries in this context are not due to assumed frictions or asymmetric information rather they are due to the dynamic open ended structure of the economy which permits debt roll over

panel estimation for co2 emissions energy consumption economic growth trade openness and urbanization of newly industrialized countries abstract this paper empirically examines the dynamic causal relationships between carbon dioxide emissions energy consumption economic growth trade openness and urbanization for the panel of newly industrialized countries nic using the time series data for the period 1971 2007 using four different panel unit root tests it is found that all panel variables are integrated of order 1 from the johansen fisher panel cointegration test it is found that there is a cointegration vector among the variables the granger causality test results support that there is no evidence of long run causal relationship but there is unidirectional short run causal relationship from economic growth and trade openness to carbon dioxide emissions from economic growth to energy consumption from trade openness to economic growth from urbanization to economic growth and from trade openness to urbanization it is found that the long run elasticity of carbon dioxide emissions with respect to energy consumption 1 2189 is higher than short run elasticity of 0 5984 this indicates that over time higher energy consumption in the newly industrialized countries gives rise to more carbon dioxide emissions as a result our environment will be polluted more but in respect of economic growth trade openness and urbanization the environmental quality is found to be normal good in the long run

price level volatility a simple model of money taxes and sunspots abstract we investigate sunspot equilibria in a static one commodity model with taxes and transfers denominated in money units volatility in this economy is purely monetary since the only uncertainty is about the price level we construct simple robust examples of sunspot equilibria that are not mere randomizations over certainty equilibria we also identify the source of these sses equilibrium in the securities market is determined as if there were no restricted consumers and the unrestricted consumers face intrinsic uncertainty perfect securities markets eliminate allocation uncertainty but they exacerbate price level volatility journal of economic literature classification numbers d50 d52 d84 e31 e62

carbon emissions energy consumption and output a threshold analysis on the causal dynamics in emerging african economies abstract following the recent global economic downturn attention has gradually shifted towards emerging economies which have experienced robust growth amidst sluggish growth of the world economy a significant number of these emerging economies are in africa rising growth in these economies is associated with surging demand for energy to propel the engines of growth with direct implications on emissions into the atmosphere further these economies are constantly being shaped by series of structural reforms with direct and indirect effects on growth demand for energy etc to this end this paper examines the causal dynamics among energy use real gdp and co2 emissions in the presence of regime shifts in six emerging african economies using the gregory and hansen 1996a j econ 70 99 126 threshold cointegration and the toda and yamamoto 1995 j econometrics 66 225 250 granger causality techniques results confirm the presence of regime shift effects in the long run inter linkages among energy use real gdp and co2 emissions in the countries considered thus indicating that structural changes have both economic and environmental effects hence integration of energy and environmental policies into development plans is imperative towards attaining sustainable growth and development

environment kuznets curve for co2 emissions a cointegration analysis for china abstract this study examines the long run relationship between carbon emissions and energy consumption income and foreign trade in the case of china by employing time series data of 1975 2005 in particular the study aims at testing whether environmental kuznets curve ekc relationship between co 2 emissions and per capita real gdp holds in the long run or not auto regressive distributed lag ardl methodology is employed for empirical analysis a quadratic relationship between income and co 2 emission has been found for the sample period supporting ekc relationship the results of granger causality tests indicate one way causality runs through economic growth to co 2 emissions the results of this study also indicate that the carbon emissions are mainly determined by income and energy consumption in the long run trade has a positive but statistically insignificant impact on co 2 emissions

bounds testing approach to analysis of the environment kuznets curve hypothesis abstract this paper examines the long run and the dynamic temporal relationships between economic growth energy consumption population density trade openness and carbon dioxide co 2 emissions in brazil china egypt japan mexico nigeria south korea and south africa based on the environment kuznets curve ekc hypothesis we employ the ardl bounds test to cointegration and cusum and cusumsq tests to ensure cointegration and parameter stability the estimated results show that the inverted u shaped ekc hypothesis holds in japan and south korea in the other six countries the long run relationship between economic growth and co 2 emissions follows an n shaped trajectory and the estimated turning points are much higher than the sample mean in addition the results indicate that energy consumption granger causes both co 2 emissions and economic growth in all the countries our results are consistent with previous studies that show that there is no unique relationship between energy consumption population density economic growth trade openness and the environment across countries

adaptive behavior and economic theory the relationship between psychological and economic views of behavior once a subject of heavy dispute is now understood in a very similar way by practitioners of both these disciplines and of our sister social sciences in general terms we view or model an individual as a collection of decision rules rules that dictate the action to be taken in given situations and a set of preferences used to evaluate the outcomes arising from particular situation action combinations these decision rules are continuously under review and revision new decision rules are tried and tested against experience and rules that produce desirable outcomes supplant those that do not i use the term adaptive to refer to this trial anderror process through which our modes of behavior are determined if one is interested in modeling particular decisions in any very explicit way it is obviously necessary to think about rather narrow aspects of an individual s entire set of decision rules his or her personality experimental psychology has traditionally focused on the adaptive process by which decision rules are replaced by others in this tradition the influence of the subject s or as an economist says the agent s preferences this essay uses a series of examples to illustrate the use of rationality and adaptation in economic theory it is argued that these hypotheses are complementary and that stability theories based on adaptive behavior may help to narrow the class of empirically interesting equilibria in certain economic models an experiment is proposed to test this idea

spot water markets and risk in water supply water availability patterns in semiarid regions are typically extremely variable even in basins with a highly developed infrastructure users are subject to unreliable water supplies incurring substantial economic losses during periods of scarcity more flexible instruments such as voluntary exchanges of water among users can help users to reduce risk exposure this article looks at the effects of spot water markets on the economic risk caused by water availability variations our theoretical and empirical risk analyses are based on the random profits of water users profit probability density functions are formally and graphically characterized for both water sellers and buyers under several possible market outcomes we conclude from this analysis that where water supply is stochastic water markets unambiguously reduce both parties risk exposure the empirical study is conducted on an irrigation district in the guadalquivir valley southern spain where there is a high probability of periods of extreme water scarcity water demand functions for the district representative irrigators and a spatial equilibrium model are used to simulate market exchanges and equilibrium this programming model is combined with statistical simulation techniques we show that the profit probability distribution of a representative irrigator is modified if water exchanges are authorized leading to risk reductions results also indicate that if the market were extended to several districts and users that are subject to varying hydrological risk exposure extremely low profit events would be less likely to occur in sum we show that exchanging water in annual spot markets can reduce farmers economic vulnerability caused by water supply variability across irrigation seasons these results support the water policy reform carried out in spain in 1999 to allow for voluntary water exchanges among right holders

bargaining rules for a thin spot water market markets for water rights have long been advocated to resolve user conflicts and to improve efficiency trelease 1961 hartman and seastone 1970 the potential for efficiency gains from market allocation of water has been well established burness and quirk 1979 eheart lyon and wong 1983 moore 1986 almost all studies of water markets address the transferability of long term water rights i e base or property rights eheart et al 1983 lyon 1986 saliba bush and martin 1987 crouter 1987 however rental or spot markets for water can improve efficiency by allowing allocational adjustments in line with changing conditions without disturbing the base rights system exchanges of either base rights or spot rights that entail a change in the point of diversion may result in third party effects even in the absence of return flow problems johnson gisser and werner 1981 eheart et al 1983 2 such third party effects place practical limits on the geographic scope of water exchanges and result in a thin market i e a market with few eligible participants thin markets are likely to be manipulated by participants leading to inefficiency unless suitable bargaining rules are designed to counter market manipulation the efficiency gains from water exchanges cannot be fully realized this paper uses multilateral bargaining models based on a game theoretic approach to address bargaining rules that will facilitate the efficient operation of a thin water market across a variety of bargaining environments institutional features such as the size of the water market the water rights system the distribution of farm sizes and the level of participants information define the bargaining environment the models are translated into computer simulations based on data representing irrigation water demand in the crane creek watershed of kankakee county illinois thin water markets are likely to be the rule rather than the exception especially in the u s west where many streams with insufficient flows are fully or overappropriated given this fact it is crucial to investigate how the efficiency of a thin water market is affected by the relative bargaining strengths of the participants and to suggest suitable bargaining rules that could improve the social gains achieved in thin water markets

intermediaries and payments instruments abstract we study an economy in which intermediaries have incentives to issue circulating liabilities as part of an equilibrium we show that with arbitrarily small transactions costs only the liabilities of intermediaries will circulate and not those of other private sector agents therefore our model connects intermediation activity with the issuance of payments media a connection that has not been made in earlier literature we use our model to suggest a resolution of the banknote underissue puzzle of cagan in d carson ed banking and monetary studies richard d irwin publishing homewood il 1963

the long run and causal analysis of energy growth openness and financial development on carbon emissions in turkey abstract the aim of this paper is to examine the causal relationship between financial development trade economic growth energy consumption and carbon emissions in turkey for the 1960 2007 period the bounds f test for cointegration test yields evidence of a long run relationship between per capita carbon emissions per capita energy consumption per capita real income the square of per capita real income openness and financial development the results show that an increase in foreign trade to gdp ratio results an increase in per capita carbon emissions and financial development variable has no significant effect on per capita carbon emissions in the long run these results also support the validity of ekc hypothesis in the turkish economy it means that the level of co 2 emissions initially increases with income until it reaches its stabilization point then it declines in turkey in addition the paper explores causal relationship between the variables by using error correction based granger causality models

co2 emissions energy consumption economic and population growth in malaysia abstract this study investigates the dynamic impacts of gdp growth energy consumption and population growth on co2 emissions using econometric approaches for malaysia empirical results from ardl bounds testing approach show that over the period of 1970 1980 per capita co2 emissions decreased with increasing per capita gdp economic growth however from 1980 to 2009 per capita co2 emissions increased sharply with a further increase of per capita gdp this is also supported by the dynamic ordinary least squared dols and the sasabuchi lind mehlum u slm u test tests consequently the hypothesis of the ekc is not valid in malaysia during the study period the results also demonstrate that both per capita energy consumption and per capita gdp has a long term positive impacts with per capita carbon emissions but population growth rate has no significant impacts on per capita co2 emission however the study suggests that in the long run economic growth may have an adverse effect on the co2 emissions in malaysia thus significant transformation of low carbon technologies such as renewable energy and energy efficiency could contribute to reduce the emissions and sustain the long run economic growth

the gains from agricultural groundwater trade and the potential for market power theory and application this article models and estimates the efficiency gains from using market based instruments relative to command and control to manage groundwater a theoretical model of an imperfectly competitive groundwater market is developed to show how the magnitude and distribution of the gains from trade change as market structure varies market structure is a key consideration because future groundwater markets will likely feature geographic limitations to trade large agricultural players and a legal environment that is conducive to forming cartel like coalitions application of the model to a groundwater dependent agricultural region in southern california shows the existence of large gains from trade despite the potential for market power with benefits up to 36 greater than that under command and control distributional impacts however can be sizable even for small degrees of market power simulations that vary market conditions show that results likely generalize to other groundwater basins

the formation of cooperatives a game theoretic approach with implications for cooperative finance decision making and stability this paper departs from the traditional organization oriented approach to cooperative analysis it exploits cooperation s functional similarity to vertical integration to examine individuals incentives to form cooperatives a model of formation of a purchasing cooperative is presented and developed as an n person game with the core as a solution concept core existence is examined for both single and multiple cooperative configurations and cooperative finance methods are examined relative to finding core compatible allocation rules the results provide insight into a cooperative s equilibrium output stability decision making financing methods and choice of open or restricted membership

nominal prices and interest rates in general equilibrium endowment shocks the outstanding problem of neoclassical monetary theory has been to determine the effect of changes in the money stock on nominal prices and interest rates the classic result is that in the absence of money illusion contracts fixed in nominal terms and other such impedimenta money is neutral thus a doubling of the money stock results in a doubling of the nominal price level and in no change in nominal interest rates except at most for a temporary liquidity effect while the price level is rising to its new level during the adjustment period the nominal interest rate might temporarily drop this neutrality result has conventionally been proved in a static framework in intertemporal models it is necessary to distinguish between static neutrality and dynamic neutrality if a model displays dynamic neutrality fluctuations in the money stock immediately induce a proportional change in the nominal price level and no change in nominal interest rates or any real variable this property is different from and stronger than static neutrality which in dynamic models states only that if the money stock at all dates is doubled so will be the price level at all dates the effects of exogenous shocks in the monetary growth rate on nominal prices and interest rates are analyzed a representative individual rational expectations framework is adopted and a demand for money is generated by entering money in the utility function the effects of monetary shocks on inflation and interest rates are shown to depend on the autocorrelation of the monetary growth rate for example under serial independence the inflation rate equals the monetary growth rate and the nominal interest rate is nonrandom while under positive negative autocorrelation the nominal interest rate is affected positively negatively by positive growth rate shocks i am grateful to the staff of the federal reserve bank of philadelphia to the finance groups at the university of southem california and virginia polytechnic institute and to c j lacivita dan peled john seater and jon sonstelie for valuable comments on earlier drafts

the saving and investment nexus for china evidence from cointegration tests the saving and investment nexus as postulated by feldstein and horioka fh 1980 is revisited the saving investment correlation for china is estimated over the periods 1952 1998 and 1952 1994 the latter culminating in a period of fixed exchange rate regime amongst the key results it is found that saving and investment are correlated for china for both the period of the fixed exchange rate and the entire sample period with high saving investment correlation the results suggest that the chinese economy is in conformity with the fh hypothesis this is a valid outcome for in china capital mobility was fairly restricted over the 1952 1994 period as indicated by the relatively low foreign direct investment

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

contracting problems and regulation the case of the fishery the inefficiencies of common property fisheries are of continuing concern to economists the early work by scott gordon 1954 and anthony scott 1955 outlined the problem and later studies by james crutchfield and giulio pontecorvo 1969 and frederick bell 1972 provided empirical estimates of the losses that result those studies were followed by the dynamic models of colin clark 1976 and james quirk and vernon smith 1970 of optimal harvest rates and the use of corrective taxes or quotas to achieve them but in spite of a large and growing literature and the persuasiveness of the outlined efficiency criteria most fisheries retain common property aspects with overcapitalization and excessive labor input why those conditions persist and the failure of the regulatory response to them are the issues addressed in this paper we examine a number of fisheries but focus on the texas shrimp industry which is one of the nation s most valuable fisheries for a single species and which shares the common property characteristics observed elsewhere it is considered overcapitalized and catch per unit of effort is falling 2 examination of the fishery reveals the many margins along which rent dissipation occurs and the nature of the regulations necessary for controlling fishing effort to avoid those losses the regulatory environment in texas is complicated by conflict within the fishery between inshore and offshore fishermen the latter assert that bay shrimping reduces the number of shrimp that successfully migrate to the gulf the inshore fishery is highlighted by another issue the recent resettlement of some 30 45 000 vietnamese refugees including many fishermen along the texas coast marine advisory service paul starr their entry has been met by hostility and violence from existing shrimpers who recognize that they are in an environment characterized by the absence of property rights bay shrimpers have lobbied the texas legislature for broad limits on new entrants yet ironically the sale of additional boats by individual shrimpers to the vietnamese has facilitated entry of the refugees into the fishery regulations in the texas shrimp and other fisheries are incomplete leaving many options for rent dissipation uncontrolled because of high contracting costs among fishermen and political factors that mold government actions contracting costs are high among heterogeneous fishermen who vary principally with regard to fishing skill 3 montana state university and texas a m university respectively we benefitted from comments by terry anderson raymond c battalio gardner brown oscar burt micha gisser wade griffin john r moroney anthony d scott peter temin and participants in workshops at texas a m university and the university of washington research assistance was provided by scott barnhart and phil mizzi funding was provided by sea grant texas a m university throughout this paper we use the terms common property and open access interchangeably here the terms describe a situation where no property rights group or individual exist s for the resource 2catch per unit of effort in the inshore texas gulf and federal gulf waters is presented for 1963 77 by w l griffin c g tydlacka and w e grant they show catch per unit of effort generally falling in inshore and offshore waters while catch per unit of effort fluctuates from year to year it falls from approximately 360 kg shrimp per unit of effort to 220 kg from 1963 to 1977 the common property nature of the fishery is reflected in the following statistics since 1975 the number of vessels has grown by 23 percent nelson swartz for fish houses the record of entry is similar between 1970 a d 1977 the number of firms grew from 259 to 287 though during that period many left the industry as others entered the number of fish houses was calculated from license data supplied by the texas parks and wildlife department the record of entry by fish houses suggests that monopsony as discussed by colin clark and gordon munro is absent in the fishery 3there may be minor differences in labor leisure choices and capital but our statistical evidence and discussions with fishermen indicate that catch variations are largely due to skill government regulations in the texas bays restrict capital and our empirical evidence shows boats to be relatively homogeneous

an overlapping generations model core equivalence theorem we show that in the overlapping generations model an allocation is a walrasian equilibrium if and only if the allocation belongs to the short term core of every replication of the olg economy and hence we establish a core equivalence theorem for the overlapping generations model

co2 emissions energy consumption and output in france abstract this paper examines the dynamic causal relationships between pollutant emissions energy consumption and output for france using cointegration and vector error correction modelling techniques we argue that these variables are strongly inter related and therefore their relationship must be examined using an integrated framework the results provide evidence for the existence of a fairly robust long run relationship between these variables for the period 1960 2000 the causality results support the argument that economic growth exerts a causal influence on growth of energy use and growth of pollution in the long run the results also point to a uni directional causality running from growth of energy use to output growth in the short run

habit persistence money and overlapping generations abstract this paper provides a comprehensive characterization of the stationary and non stationary monetary equilibria in a two period pure exchange overlapping generations model with multiplicative habit persistence preferences somewhat surprisingly the upshot is that multiplicative habit persistence preferences do not affect the qualitative properties of the dynamical system in these models in addition the qualitative properties of models with subtractive and multiplicative habits are largely similar any possibility of cyclical fluctuations beyond periodicity two is also ruled out

valuation and optimality in the overlapping generations model we present versions of the fundamental theorems of welfare economics for the overlapping generations model with an infinite dimensional commodity space given samuelson s example one cannot hope for a version of the welfare theorems in terms of pareto optimality however we show that for malinvaud optimality both welfare theorems as formulated by debreu do hold the main result of this paper asserts that in an olg model an allocation is malinvaud optimal if and only if it is a valuation equilibrium a fundamental concern of general equilibrium theory dating at least from adam smith s wealth of nations is the optimality of the market mechanism the relationship between competitive behavior and the efficient allocation of resources has its clearest and most satisfying formulation in the two welfare theorems of k j arrow 1951 and g debreu 1954

energy consumption economic growth and co2 emissions in middle east and north african countries this article extends the recent findings of liu 2005 ang 2007 apergis et al 2009 and payne 2010 by implementing recent bootstrap panel unit root tests and cointegration techniques to investigate the relationship between carbon dioxide emissions energy consumption and real gdp for 12 middle east and north african countries mena over the period 1981 2005 our results show that in the long run energy consumption has a positive significant impact on co2 emissions more interestingly we show that real gdp exhibits a quadratic relationship with co2 emissions for the region as a whole however although the estimated long run coefficients of income and its square satisfy the ekc hypothesis in most studied countries the turning points are very low in some cases and very high in other cases hence providing poor evidence in support of the ekc hypothesis co2 emission reductions per capita have been achieved in the mena region even while the region exhibited economic growth over the period 1981 2005 the econometric relationships derived in this paper suggest that future reductions in co2 emissions per capita might be achieved at the same time as gdp per capita in the mena region continues to grow

institutional path dependence in climate adaptation coman s some unsettled problems of irrigation districts that emerged in the american west in the late nineteenth and early twentieth centuries in response to aridity to facilitate agricultural water delivery use and trade raise the transaction costs today of water markets these markets are vital for smooth reallocation of water to higher valued uses elsewhere in the economy and for flexible response to greater hydrological uncertainty this institutional path dependence illustrates how past arrangements to meet conditions of the time constrain contemporary economic opportunities they cannot be easily significantly modified or replaced ex post