the emergence of the biodiesel industry in brazil current figures and future prospects abstract the aim of the present paper is to characterize and analyze the emergence of the biodiesel industry in brazil and provide an assessment of the extent to which the goals established by the national biodiesel production and usage program have been reached in relation to the goal of including biodiesel within the brazilian energy matrix the program can be seen to be responding dynamically and ahead of schedule in 2010 the b5 blend was already part of the diesel consumed in brazil with 81 of the biodiesel coming from soybean oil and 14 from beef tallow by contrast the plans to diversify the feedstocks used to produce biodiesel and improve production in the poorest regions of brazil have failed to prosper regarding the goal of fostering social inclusion by encouraging the participation of family based farming this has been partially achieved finally the goal of cost efficiently producing biodiesel is far from being achieved the economic feasibility of the production and use of biodiesel in brazil can be questioned since it is still strongly supported by tax incentives and production and marketing subsidies

injecting rational bubbles this paper proves two theorems about economies with a finite number of infinitely lived agents who trade a complete set of one period arrow securities and several infinitely lived securities at each date subject to short sales constraints the first theorem in the paper considers an equilibrium to an economy of this kind it proves that there exists another economy with perturbed short sales constraints in which there is an allocation equivalent equilibrium in which asset prices have a bubble the second theorem extends to the result to the case in short sales constraints are endogenously determined in the sense of alvarez and jermann efficiency equilibrium and asset pricing with risk of default econometrica 68 2000 775 797

urbanization openness emissions and energy intensity a study of increasingly urbanized emerging economies this paper analyses the impact of urbanization and trade openness on emissions and energy intensity in twenty two increasingly urbanized emerging economies we employ three second generation heterogeneous linear panel models as well as recently developed nonlinear panel estimation techniques allowing for cross sectional dependence the empirical results show that population density and affluence increase emissions and energy intensity while renewable energy seems to be dormant in these emerging economies but non renewable energy increases both co2 emissions and energy intensity in addition openness significantly reduces both pollutant emissions and energy intensity whereas urbanization significantly increases energy intensity but it is insignificant in increasing emissions this may be in part due to the recent increasing trend in adopting cleaner technologies in these increasingly urbanized developing economies

assessment of a green credit policy aimed at energy intensive industries in china based on a financial cge model abstract a financial computable general equilibrium model is established to quantitatively calculate the systematic effects of a green credit policy the punitive high interest rate is applied to the energy intensive industries as the green credit policy this study is focused on the following industries paper chemical cement and iron and steel short medium and long term scenarios are used to conduct experiments representing the green credit policy then a scenario is simulated wherein a green security policy and the green credit policy are carried out simultaneously finally effects of the green credit policy a differential electricity price policy and a raised production tax policy towards the energy intensive industries are compared the results show that the green credit policy is effective in suppressing the investments in energy intensive industries and it is comparatively less effective in adjusting the industrial production structure the green security policy helps the green credit policy to reduce the total financing of the target industries but it brings more negative impacts on the economy although the policies of differential electricity prices and raising production taxes support the output structural adjustments their negative effects are much larger than those of the green credit policy

general equilibrium with nonconvexities and money in a general equilibrium economy with nonconvexities there are sunspot equilibria with good welfare properties sunspots can ameliorate the effects of the nonconvexities for these economies we show that agents act as if they have quasi linear utility functions we use this result to construct a new model of monetary exchange along the lines of lagos and wright where trade occurs in both centralized and decentralized markets but instead of quasi linear preferences we assume general preferences but with indivisible labor this suggests that modern monetary theory is more robust than one might have thought it also constitutes progress on the classic problem of integrating monetary economics and general equilibrium theory

interdependent international relations and the expansion of ethanol production and consumption the brazilian perspective abstract the global production and consumption of ethanol are expected to increase the growing interdependence of markets and nations producers and consumers of biofuels has led actors to seek and devise mechanisms intended to develop the sector this paper aims to analyze the interdependent international relations between brazil and other ethanol biofuel producer and consumer countries to do so the paper explores the theory of complex interdependence and the game theory a quali quantitative study was conducted involving the application of two questionnaires to experts on biofuels and documentary analysis aided by qda miner software the results show that brazil shares highly interdependent relations with the united states an intermediate degree of interdependence with europe and a low degree of interdependence with china the dimensions of those interdependent relations can be ranked according to importance in the following order first the political then the economic technical and finally the social environmental dimensions a number of actions can be envisaged that could lead ethanol to achieve an increasingly strategic position in the diversification of the energy matrix in different countries technological efforts to improve production efficiency the creation of globally integrated policies designed to provide security and develop the production and consumption infrastructure the reduction of international tariffs on the product and the transformation of ethanol into a global commodity with a large number of countries buying and selling the product this paper faced the challenge of integrating approaches and concepts from two complex theoretical areas complex interdependence theory and game theory the research methodology and the insights gained from the ethanol case contribute to the literature on the applicability of these two theoretical approaches

bank incentives contract design and bank runs abstract we study the diamond dybvig bank runs deposit insurance and liquidity j polit econ 91 1983 401 419 model as developed in green and lin implementing efficient allocations in a model of financial intermediation j econ theory 109 2003 1 23 and peck and shell equilibrium bank runs j polit econ 111 2003 103 123 we dispense with the notion of a bank as a coalition of depositors instead our bank is a self interested agent with a technological advantage in record keeping we examine the implications of the resulting agency problem for the design of bank contracts and the possibility of bank run equilibria for a special case we discover that the agency problem may or may not simplify the qualitative structure of bank liabilities we also find that the uniqueness result in green and lin implementing efficient allocations in a model of financial intermediation j econ theory 109 2003 1 23 is robust to our form of agency but that the non uniqueness result in peck and shell equilibrium bank runs j polit econ 111 2003 103 123 is not

impact of policies and subsidies in agribusiness the case of oil palm and biofuels in colombia abstract we analyze the economic impacts of policies supporting biodiesel production in colombia such as subsidies and mandates for compulsory fuel mixtures in the major biodiesel source being palm oil we seek to establish the impact of these policies on oil palm producer incomes prices and production levels of crude palm oil cpo and biodiesel as well as the impacts on demand for land for oil palm plantation expansion we also calculate the so called deadweight costs to account for the social costs derived from the inefficiencies of government interventions in the biodiesel markets the analysis is done using a partial equilibrium models for the two interrelated sectors the production of palm oil and biodiesel and the demand for new land needed to cope with the additional palm oil needed the model was calibrated for 2009 to simulate for the 2010 2020 period the results of the simulations reveal that the subsidies alone are themselves not effective tools to achieve the government objectives defined in the biofuels program in colombia subsidies need to be complemented by increased blending mandates to ensure that palm cultivation and production of biodiesel investments are profitable enough that producers would bet on such business additionally we find that producers of palm oil benefit most from subsidies in the short term however in the long term it is the biodiesel entrepreneurs who will appropriate the larger share of growth revenue of the entire production chain the social costs of the biofuels program are small in the short term and represent only between 0 2 and 0 7 of the tax expenditure however in the long term they would become significant and would account for around 4 1 to 6 1 of the tax payers expense

search bargaining money and prices the goal of this paper is to extend existing search theoretic models of fiat money which until now have assumed that the price level is exogenous by explicitly incorporating bilateral bargaining this allows us to determine the price level endogenously and leads to additional insights concerning the role of money for example we find that monetary equilibria are generally inefficient in the sense that output and prices differ from the solution to a social planner s problem although the difference can become small as the discount rate or search friction vanishes we also find that there exist nonstationary inflationary equilibria

city size and energy conservation do large cities in china consume more energy abstract although the nexus between urbanization and energy consumption has been widely discussed at the macro level or in specific areas such as in relation to residents and transport how the expansion of city size affects energy consumption in the process of urbanization is still unknown clarifying this impact mechanism is necessary for china to achieve its energy conservation goals in this context based on a systematic theoretical elaboration this study constructs an econometric model of the nexus between city size and energy use and performs a series of robust empirical analyses through the endogenous control of instrumental variables the results show that the current expansion of china s city size tends to positively affect energy consumption however as city size continues to expand energy consumption will exceed the critical value and change from increasing to decreasing in this process it is easier to achieve a decline in energy intensity than a decline in per capita energy consumption cities with a population exceeding 1 million in their urban districts are more conducive to reducing energy use compared with the expansion of urban built up areas an increasing population agglomeration can more effectively promote the decline of urban energy consumption this study provides policy makers with new ideas about urban planning and energy conservation

endogenous groups and dynamic selection in mechanism design abstract we create a dynamic theory of endogenous risk sharing groups with good internal information and their coexistence with relative performance individualistic regimes which are informationally more opaque inequality and organizational form are determined simultaneously numerical techniques and succinct reformulations of mechanism design problems with suitable choice of promised utilities allow the computation of a stochastic steady state and its transitions regions of low inequality and moderate to high wealth utility promises produce the relative performance regime while regions of high inequality and low wealth produce the risk sharing group regime if there is a cost to prevent coalitions risk sharing groups emerge at high wealth levels also transitions from the relative performance regime to the group regime tend to occur when rewards to observed outputs exacerbate inequality while transitions from the group regime to the relative performance regime tend to come with a decrease in utility promises some regions of inequality and wealth deliver long term persistence of organization form and inequality while other regions deliver high levels of volatility

a model of banknote discounts abstract prior to 1863 state chartered banks in the united states issued notes dollar denominated promises to pay specie to the bearer on demand although these notes circulated at par locally they usually were quoted at a discount outside the local area these discounts varied by both the location of the bank and the location where the discount was being quoted further these discounts were asymmetric across locations meaning that the discounts quoted in location a on the notes of banks in location b generally differed from the discounts quoted in location b on the notes of banks in location a also discounts generally increased when banks suspended payments on their notes in this paper we construct a random matching model to qualitatively match these facts about banknote discounts to attempt to account for locational differences the model has agents that come from two distinct locations each location also has bankers that can issue notes banknotes are accepted in exchange because banks are required to produce when a banknote is presented for redemption and their past actions are public information overall the model delivers predictions consistent with the behavior of discounts

whither monetary economics i argue that monetary economics should be pursued by applying implementation theory to models which contain explicit frictions that make money essential the argument has two parts first i argue that models in which real balances are assumed to be productive models with money in utility or production functions or with cash in advance constraints contain hidden inconsistencies second i argue that the approach advocated is capable of providing new insights about some of the main issues in monetary economics the effects of monetary shocks the welfare cost of inflation and the roles of inside and outside money

money and capital as competing media of exchange we construct a model where capital competes with fiat money as a medium of exchange and we establish conditions on fundamentals under which fiat money can be both valued and socially beneficial when the socially efficient stock of capital is too low to provide the liquidity agents need they overaccumulate productive assets to use as media of exchange when this is the case there exists a monetary equilibrium that dominates the nonmonetary one in terms of welfare under the friedman rule fiat money provides just enough liquidity so that agents choose to accumulate the same capital stock a social planner would

understanding china s urban pollution dynamics china s ongoing urban economic growth has sharply increased the population s per capita income lowered the count of people living below the poverty line and caused major environmental problems we survey the growing literature investigating the causes and consequences of china s urban pollution challenges we begin by studying how urban population and industrial growth impacts local pollution levels and greenhouse gas production as the urban population grows richer its demand for private transportation and electricity sharply increases such privately beneficial activity exacerbates urban pollution externalities facing these severe environmental challenges china s urbanites increasingly demand quality of life progress we survey the emerging literature investigating the demand for environmental progress in china progress in mitigating externalities hinges on whether the powerful central and local governments choose to address these issues we analyze the political economy of whether government officials have strong incentives to tackle lingering urban externalities we conclude by discussing future research opportunities at the intersection of environmental and urban economics jel o18 p25 p28 q53 r23 r41 r58

multiplicity in general financial equilibrium with portfolio constraints abstract this paper explores the role of portfolio constraints in generating multiplicity of equilibrium we present a simple financial market economy with two goods and two households households who face constraints on their ability to take unbounded positions in risky stocks absent such constraints equilibrium allocation is unique and is pareto efficient with one portfolio constraint in place the efficient equilibrium is still possible however additional inefficient equilibria in which the constraint is binding may emerge we show further that with portfolio constraints cum incomplete markets there may be a continuum of equilibria adding incomplete markets may lead to real indeterminacy

how does germany s green energy policy affect electricity market volatility an application of conditional autoregressive range models abstract based on a dynamic model for the high low range of electricity prices this article analyses the effects of germany s green energy policy on the volatility of the electricity market using european energy exchange data from 2000 to 2015 we find rather high volatility in the years 2000 2009 but also that the weekly price range has significantly declined in the period following the year 2009 this period is characterised by active regulation under the energy industry law enwg the eu emissions trading directive etd and the renewable energy law eeg in contrast to the preceding period price jumps are smaller and less frequent especially for day time hours implying that current policy measures are effective in promoting renewable energies while simultaneously upholding electricity market stability this is because the regulations strive towards a more and more flexible and market oriented structure which allows better integration of renewable energies and supports an efficient alignment of renewable electricity supply with demand

endogenous supply of fiat money abstract we consider whether reputation concerns can discipline the behavior of a long lived self interested agent who has a monopoly over the provision of fiat money we obtain that when this agent can commit to a choice of money supply there is a monetary equilibrium where it never overissues we show however that monetary equilibria with no overissue do not exist when there is no commitment this happens because the incentives this agent has to maintain a reputation for providing valuable currency disappear once its reputation is high enough more generally we prove that in the absence of commitment overissue happens infinitely often in any monetary equilibrium we conclude by showing that imperfect memory can restore the positive result obtained with commitment

bidding for money we analyze monetary exchange in a model that allows for directed search and multilateral matches we consider environments with divisible goods and indivisible money and compare the results with those in models that use random matching and bilateral bargaining two different pricing mechanisms are used ex ante price posting and ex post bidding auctions also we consider settings both with and without lotteries we find that the model generates very simple and intuitive equilibrium allocations that are similar to those with random matching and bargaining but with different comparative static and welfare properties

evaluating the economics of biodiesel in africa abstract road transport in sub saharan africa is expected to rise in the coming years paradoxically this expansion is occurring at a time when oil prices have reached new heights unstable oil prices do indeed increase the vulnerability of importers however it also presents them with a unique opportunity to explore promising technical options to help reduce their over reliance on imported petroleum fuels this paper takes a closer look at the potential for biodiesel with an emphasis on fuels produced from oil palm castor oil and jatropha in ghana kenya and tanzania respectively the paper provides an economic appraisal of biodiesels from these feedstocks and sets the context for further discussions on biofuels in africa

sector based political analysis of energy transition green shift in the forest policy regime in france abstract this article examines energy transition political process from a sector based approach through the analysis of recent shift in the french forest policy regime we demonstrate that since 2007 energy transition policies have led to a harvesting turn within the french forest policy framework meaning that priority is given to wood mobilisation mainly for biomass uses in addition our findings suggest that the political authority wielded by the state over forest policy has shifted from forest administrative services to energy agencies and local authorities finally we show that although implementation of the harvesting turn is a cause of sectoral and inter sectoral tensions energy transition challenge also contributes to a process of re institutionalisation of mediation relationships among forestry stakeholders and wood based industries representatives the article concludes by arguing that sectors should retain relevant institutional frameworks for actors when choosing political arrangements required for implementing energy transition policy

china s energy demand and its characteristics in the industrialization and urbanization process a reply zhang and qin 2013 argued that in jiang and lin 2012 the equation form and variable selection should be altered and it was problematic to use regression equation to project the future in this reply we disagree with and will refute some of the points raised in their comments the model that we established was based on the mature economic theory with the variable selections all having economic implications considering the economic development stage china s urbanization will speed up and this will have significant effect on energy consumption therefore urbanization is an indispensable variable for analyzing energy demand in china the scenario design only in terms of the gdp is sufficient for illustrating energy demand trend in china to be understood in a way by most of the people although energy forecast is not that precise it has an important implication for energy policy design especially for china which is in transition and china s energy demand will keep high growth in the mid term

efficient propagation of shocks and the optimal return on money abstract we study optimal allocations in an environment in which money is essential due to lack of commitment and anonymity of individuals because the economy features aggregate preference shocks we apply a notion of implementability that allows for allocations with non trivial business cycle dynamics for the propagation of shocks we show that history dependence is predicted by the theory of second best and becomes necessary for optimality when the degree of patience is neither too low nor too high our analysis concludes with a discussion of whether there is a role for the propagation of shocks in alternative economic environments

residential energy consumption in urban china a decomposition analysis abstract residential energy consumption rec is the second largest energy use category 10 in china and urban residents account for 63 of the rec understanding the underlying drivers of variations of urban rec thus helps to identify challenges and opportunities and provide advices for future policy measures this paper applies the lmdi method to a decomposition of china s urban rec during the period of 1998 2007 at disaggregated product activity level using data collected from a wide range of sources our results have shown an extensive structure change towards a more energy intensive household consumption structure as well as an intensive structure change towards high quality and cleaner energy such as electricity oil and natural gas which reflects a changing lifestyle and consumption mode in pursuit of a higher level of comfort convenience and environmental protection we have also found that china s price reforms in the energy sector have contributed to a reduction of rec while scale factors including increased urban population and income levels have played a key role in the rapid growth of rec we suggest that further deregulation in energy prices and regulatory as well as voluntary energy efficiency and conservation policies in the residential sector should be promoted

does urbanization lead to less energy use and lower co2 emissions a cross country analysis despite the relationship between urbanization energy use and co2 emissions has been extensively studied in recent years little attention has been paid to differences in development stages or income levels most previous studies have implicitly assumed that the impact of urbanization is homogenous for all countries this assumption can be questionable as there are many characteristic differences among countries of different levels of affluence this paper investigates empirically the effects of urbanization on energy use and co2 emissions with consideration of the different development stages using the stochastic impacts by regression on population affluence and technology stirpat model and a balanced panel dataset of 99 countries over the period 1975 2005 the findings suggest that the impact of urbanization on energy use and emissions varies across the stages of development surprisingly urbanization decreases energy use in the low income group while it increases energy use in the middle and high income groups the impact of urbanization on emissions is positive for all the income groups but it is more pronounced in the middle income group than in the other income groups these novel findings not only help advance the existing literature but also can be of special interest to policy makers and urban planners

do urbanization and industrialization affect energy intensity in developing countries abstract against a backdrop of concerns about climate change peak oil and energy security issues reducing energy intensity is often advocated as a way to at least partially mitigate these impacts this study uses recently developed heterogeneous panel regression techniques like mean group estimators and common correlated effects estimators to model the impact that income urbanization and industrialization has on energy intensity for a panel of 76 developing countries in the long run a 1 increase in income reduces energy intensity by 0 45 to 0 35 long run industrialization elasticities are in the range 0 07 to 0 12 the impact of urbanization on energy intensity is mixed in specifications where the estimated coefficient on urbanization is statistically significant it is slightly larger than unity the implications of these results for energy policy are discussed

production subsidies and redistribution abstract who gains from stimulating output we explore a dynamic model with production subsidies where the population is heterogeneous in one dimension wealth there are two channels through which production subsidies redistribute resources across the population first poorer agents gain from a rise in wages since to the extent there is an operative wealth effect in labor supply they work harder second because a current output boost will raise consumption today relative to the future thus lowering real interest rates poor agents gain in relative terms since their income is based less on interest income we examine optimal redistribution from the perspective of an arbitrary consumer in the population we show that if this consumer has commitment at time zero to set all present and future subsidy rates and for a class of preferences that admits aggregation in wealth then output stimulation and hence redistribution will only occur at time zero after that subsidies are zero a byproduct of our analysis of this environment is a median voter theorem with direct voting over subsidy sequences at time zero the sequence preferred by the median wealth consumer is the unique outcome we also study lack of commitment since interest rate manipulation is associated with time inconsistency we analyze this case formally by looking at the markov perfect time consistent equilibrium in a game between successive identical decision makers e g the median agent here subsidies persist they are constant over time and are more distortionary than under commitment moreover whereas under commitment asset inequality changes initially in favor of the consumer who decides on policy it does not under lack of commitment

feedstock diversification for biodiesel production in brazil using the policy analysis matrix pam to evaluate the impact of the pnpb and the economic competitiveness of alternative oilseeds abstract while biodiesel feedstock diversification is a main objective of the brazilian national program for the production and use of biodiesel pnpb in portuguese its achievement has remained elusive and biodiesel is predominantly produced from soybean 75 this research uses the policy analysis matrix pam approach to evaluate the pnpb effects and compare the economic efficiency and the competitiveness of biodiesel from three oilseeds soybean rapeseed and sunflower in contrast to papers that present results of experimental biodiesel production initiatives this paper explores the case of representative production chains best available technology and management practices the findings indicate that biodiesel production is competitive from the three oilseeds but the profitability of biodiesel from the soybean is notably higher the tax breaks and subsidies provided by the pnpb have a positive impact on the profitability of biodiesel production chains 7 43 for soybean 3 88 for rapeseed 5 53 for sunflower these results are encouraging and suggest two actions i to review the incentive policies tax reduction and payments to farmers of the different crops pay for oil content instead of crop yield and ii to invest in organizational and managerial approaches in the alternative oilseed agricultural systems to improve their technical and economic efficiency

green industrial policy green growth requires green technologies production techniques that economize on exhaustible resources and emit fewer greenhouse gases the availability of green technologies both lowers social costs in the transition to a green growth path and helps achieve a satisfactory rate of material progress under that path the theoretical case in favour of using industrial policy to facilitate green growth is quite strong economists traditional scepticism on industrial policy is grounded instead on pragmatic considerations having to do with the difficulty of achieving well targeted and effective interventions in practice while these objections deserve serious attention i argue that they are not insurmountable a key objective of this paper is to show how the practice of industrial policy can be improved by designing institutional frameworks that counter both informational and political risks

the costs of indonesian sugar policy a policy analysis matrix approach indonesian sugar policy is a complex web of contradictory policies including mandatory production price supports and fertilizer and credit subsidies the policy analysis matrix pam was developed by monke and pearson to provide a more complete perspective on social profitability and the divergence between private and social costs than other commonly used social cost benefit measures the pam is used to analyze the effects of indonesian sugar policy on sugar production in irrigated and dryland areas on java the main sugar producing region in indonesia and to identify the distribution of resource transfers

a unified framework for monetary theory and policy analysis search theoretic models of monetary exchange are based on explicit descriptions of the frictions that make money essential however tractable versions of these models typically make strong assumptions that render them ill suited for monetary policy analysis we propose a new framework based on explicit micro foundations within which macro policy can be studied the framework is analytically tractable and easily quantifiable we calibrate the model to standard observations and use it to measure the cost of inflation we find that going from 10 percent to 0 percent inflation is worth between 3 and 5 percent of consumption much higher than previous estimates

impacts of urbanization on national transport and road energy use evidence from low middle and high income countries abstract few attempts have been made to investigate quantitatively and systematically the impact of urbanization on transport energy use for countries of different stages of economic development this paper examines the influence of urbanization on national transport and road energy use for low middle and high income countries during 1975 2005 using the stochastic impacts by regression on population affluence and technology stirpat model after controlling for population size income per capita and the share of services in the economy the main results suggest that urbanization influences national transport and road energy use positively however the magnitude of its influence varies among the three income groups changes in urbanization appear to have a greater impact on transport and road energy use in the high income group than in the other groups surprisingly the urbanization elasticities of transport and road energy use in the middle income group are smaller than those of the low income group this study not only sheds further light on the existing literature but also provides policy makers with insightful information on the link between urbanization and transport energy use at the three different stages of development

incentive efficient risk sharing in a settlement mechanism abstract the purpose of this paper is to address a question concerning risk management in continuing multi party contractual clearing and settlement arrangements through which large value payments are typically made we are particularly interested in the issues of incentive compatibility when a third party possesses a private information concerning the riskiness of transfers being made if a third party possesses private information that would be of value in determining how best to settle a payment how does the exposure of that party to the settlement risk affect the quality of information that the party chooses to provide in this paper we address this question by analyzing a specific class of parametric environments of a schematic formal model of a settlement arrangement or a payment network

energy policy in the caribbean green economy context and the institutional analysis and design iad framework as a proposed tool for its development abstract market integration efforts of caribbean small island developing states have become transposed on the growing paradigm shift towards green economy pathways central to this is the challenge of implementing caribbean energy policy in a manner that is aligned with green economy ideals and face the realities of regional indebtedness and environmental impacts here we analyze the current state of the caribbean energy policy development arena and propose that the currently weak policy and institutional design regime might potentially benefit from the application of the institutional analysis and design iad model especially within the operational context of the green economy it allows us to identify current policy dilemmas bottlenecks and discrepancies and to disentangle some of them while offering up a way forward with others we do not so much offer distinct recommendations but focus more on delineating how to clear the pathway for sound policy intervention and outcomes by doing so we set forth a challenging agenda for future policy analysis research that will advance caribbean energy policy in more robust ways

money and prices a model of search and bargaining abstract this paper makes commodities divisible and incorporates bargaining into the search theoretic model of money to determine the purchasing power of money or price it is shown that two monetary equilibria always coexist where fiat money is universally accepted the two equilibria differ in price output welfare and the velocity of money sunspot monetary equilibria exist in which money is universally accepted in all states of the economy multiplicity has novel implications on the effectiveness of currency substitution and exchange market intervention journal of economic literature classification numbers c78 e40

does urbanization affect energy intensities across provinces in china long run elasticities estimation using dynamic panels with heterogeneous slopes abstract although there has been extensive debate in the literature that addresses the impact of urbanization on total energy use the relative magnitude of each impact channel has not been empirically examined and urbanization s effects on energy transition dynamics in china remains unknown using panel datasets at the provincial level from 1986 to 2011 this paper employs dynamic models to investigate both the long run and short run elasticities of urbanization on energy intensities and the most significant impact channel is identified coal intensity and electricity intensity are also modeled to reveal energy transition dynamics driven by urbanization a set of newly developed regression techniques namely well performed common correlated effects mean group ccemg and augmented mean group amg estimators are used to treat residual cross sectional dependence nonstationary residuals and unlikely to hold homogeneous slope assumptions the results obtained verify that the net effects of urbanization on overall energy intensity and electricity intensity are statistically positive with long run elasticities of 0 14 to 0 37 and 0 23 to 0 29 respectively whereas china s urbanization does not significantly increase coal intensity the fact that short run elasticities account for a majority of corresponding long run values indicates that the short run effect that is indirect energy use induced by urban infrastructures is the most significant impact channel of urbanization on energy use in china an energy transition from high pollution coal to clean electricity is also present in china although the fundamental transition to renewable energy is still in its infancy from a regional perspective urbanization exerts asymmetric impacts on provincial energy use so that energy policies associated with urbanization should be province specific the findings also illustrate that for a panel dataset on regional dimension within large and fast growing economies such as china error cross sectional dependence and residual nonstationarity must be tested and properly treated to avoid size distortion and biased estimators

residential electricity demand in taiwan this paper examines the residential demand for electricity in taiwan as a function of household disposable income population growth the price of electricity and the degree of urbanization short and long term effects are separated through the use of an error correction model in the long run the income elasticity is unit elastic the own price effect is negative and inelastic in an error correction framework the short run income and price effects are small and less than the long run effects cooling degree day effects have a positive impact on short run consumption we have used a proxy variable urbanization to capture economic development characteristics and changes in electricity using capital stocks not explained by income the variable provides significant explanatory power to the model both in the short and long run we interpret it as controlling for economic development factors not captured by the pure income effect and we think it holds promise for explaining residential electricity consumption in other developing countries

agglomeration effects in foreign direct investment and the pollution haven hypothesis does environmental regulation impair international competitiveness of pollution intensive industries to the extent that they relocate to countries with less stringent regulation turning those countries into pollution havens we test this hypothesis using panel data on outward foreign direct investment fdi flows of various industries in the german manufacturing sector and account for several econometric issues that have been ignored in previous studies most importantly we demonstrate that externalities associated with fdi agglomeration can bias estimates away from finding a pollution haven effect if omitted from the analysis we include the stock of inward fdi as a proxy for agglomeration and employ a gmm estimator to control for endogenous time varying determinants of fdi flows furthermore we propose a difference estimator based on the least polluting industry to break the possible correlation between environmental regulatory stringency and unobservable attributes of fdi recipients in the cross section when accounting for these issues we find robust evidence of a pollution haven effect for the chemical industry

governing biofuels in brazil a comparison of ethanol and biodiesel policies over the last decade brazil has implemented a new and ambitious biofuel program the national program of production and use of biodiesel pnpb when launching this program in 2004 the government stated that it wanted to avoid the same kind of geographical concentration single crop focus dominance of agribusiness and exclusion of family farmers that have occurred with bioethanol production through the proalcool policy since 1975 this paper compares the life histories of the bioethanol and the biodiesel policies of brazil by analyzing their substantive policy content the power and politics of actors that struggle for the design and implementation of the policies and the polity in terms the organization and institutionalization of the policies the paper concludes that both policies have become submerged by and dependent on the polity and politics of primarily the energy and agricultural sectors that operate as the two semi autonomous governance fields this submerging has shaped the substantive contents of biofuels policies and explains why the 2004 biodiesel policy pnpb in spite of its objectives for social inclusion and rural development faces similar problems in implementation as its predecessor the 1975 bioethanol policy proalcool

an overlapping generations model with search abstract search is embedded in an overlapping generations model the young participate in a centralized market and then are matched in pairs in a decentralized market the old only participate in the centralized market if the buyer s bargaining power in pairwise trade is close to unity and if the old are risk averse then the golden rule rate of money transfer is positive such risk aversion the pairwise meetings and dependence of the young s saving on the rate of return are necessary for this result

the effect of biodiesel policies on world biodiesel and oilseed prices a theoretical and empirical model is developed to analyze the effect of a biodiesel mandate a tax exemption tax credit and an exogenous diesel price shock on world soybean and canola markets the jointness in crushing oil and meal from the oilseed reduces the size of the link between biodiesel and oilseed prices a diesel price shock with a mandate results in a smaller change in oilseed prices compared with a tax exemption higher diesel prices increase biodiesel prices under a tax exemption but lower them with a blend mandate when both canola and soybeans are used to produce biodiesel an increase in the diesel price leads to higher canola prices but the effect on soybean prices is ambiguous and depends on relative elasticities of meal demand and canola supply because canola produces more oil than soybeans