how to improve the performance of carbon tax in china abstract the chinese government committed to controlling carbon dioxide co 2 emissions and promoting development of non fossil fuels thus it becomes a top priority for the government to develop effective climate policies against such background this paper develops a new multi country computable general equilibrium cge model with detailed energy disaggregation this study evaluates the impact of single policy instrument carbon tax and combined policy mixes in order to investigate driving factors affecting the policy performance the main findings are as follows firstly the driving factors can be classified into two types the first type of factors affects cost effectiveness significantly while the second type generates considerable effect on emission performance secondly cross border externalities function as important barriers to the co 2 emission reduction since they imply extra competitiveness loss and result in considerable carbon leakage finally this paper considers two integrated policy mixes wherein carbon tax revenue is recycled to reduce capital tax or support clean energy subsidy these policy mixes can improve both cost effectiveness and emission performance and thus perform better than carbon tax alone in this way carbon tax revenue can be used to improve the performance looking ahead complicated policy mixes are preferred to improve the performance of china s carbon tax

climate policy and fiscal constraints do tax interactions outweigh carbon leakage climate policymaking faces twin challenges of carbon leakage and public sector revenue requirements a large literature advocates the use of carbon dioxide co2 pricing and recycling the revenues to lower distorting taxes as a way to minimize costs in this paper we explore the implications of labor tax interactions for the cost effectiveness of border adjustments and other measures to cope with leakage we find that for plausible values of labor supply elasticities the cost savings from revenue recycling are significant from 15 to 25 percent the cost savings from anti leakage measures are generally smaller but also significant particularly for small coalitions or more binding reduction targets tax interactions further enhance the cost savings from border adjustments but make other measures like rebates or exemptions less attractive

the cross country implications of alternative climate policies abstract because of worldwide growing concerns about global climate change great interest has been expressed in the potential of alternative climate policies to reduce global carbon emissions in this paper we compare cross country implications of alternative climate policies including unilateral and multilateral climate policies our main findings are as follows firstly there are large differences in cross country effects of alternative unilateral climate policies when the same given carbon emission reductions are achieved in each abating country respectively meanwhile cross border externalities undermine efficiency of unilateral climate policies secondly there are significant differences in cross country implications of alternative multilateral climate policies when the same global emission reductions are allocated in several different ways among abating countries thirdly it is difficult to reach a stable global climate treaty since any abating country has the incentive to argue for small carbon emission reductions finally multilateral climate policies can reduce the negative impacts of cross border externalities but cannot cure all cross border externalities looking ahead it will be a great policy challenge for the world to reduce carbon emissions in a cost effective way

household and economy welfare economics of endogenous fertility mark nerlove assaf razin and efraim sadka academic press new york 1987 pp xii 155

incomplete international cooperation to reduce co2 emissions alternative policies abstract as a first step toward a global treaty to control co2 emissions individual countries contemplate unilateral reductions in their fuel use such actions if significant would reduce world market fuel prices thereby stimulating fuel use elsewhere and causing problems for exporting countries possibly jeopardizing this policy initiative among the policy alternatives for mitigating the price effects of reduced demand reduced fuel consumption combined with buying or leasing fuel deposits to achieve a reduced supply is discussed in particular this policy which at first seems prohibitively costly is shown to dominate the original policy approach under a fairly wide set of circumstances

unilateral climate policy design efficiency and equity implications of alternative instruments to reduce carbon leakage abstract global cost effectiveness of unilateral emission abatement can be seriously hampered by carbon leakage we assess three widely discussed proposals for leakage reduction carbon motivated border tax adjustments industry exemptions from carbon regulation and output based allocation of emission allowances we find that none of these measures amounts to a magic bullet when both efficiency and equity criteria matter compared to unilateral emission pricing alone border carbon adjustments are most effective in leakage reduction and promotion of global cost effectiveness but can markedly exacerbate regional inequality exemptions and output based allocation tend to avoid distributional pitfalls but are less effective in leakage reduction and global cost savings exemptions may even decrease global cost effectiveness of unilateral emission abatement

altruism intergenerational transfers of time and bequests abstract this paper uses a standard two period overlapping generation model to examine the behavior of an economy where both intergenerational transfers of time and bequests are available while bequests have been examined extensively time transfers have received little or no attention in the literature assuming a log linear utility function and a cobb douglas production function we derive an explicit solution for the dynamics and show that altruistic intergenerational time transfers can take place in presence of a binding non negativity constraint on bequests we also show that with either type of transfers capital is an increasing function of the intergenerational degree of altruism however while with time transfers the labor supply of the young increases with the degree of altruism with bequests it may decrease

global energy subsidies an analytical taxonomy governments around the world have pledged to eliminate or sharply reduce subsidies to energy firms in order to increase economic efficiency and reduce environmental externalities yet definitions of subsidies vary widely and as a result estimates of their global magnitude vary by orders of magnitude i review why energy subsidies are so difficult to define and measure i show why some non standard measures are very poor proxies for subsidy costs and in fact may vary inversely with them in particular recent attempts to treat unpriced externalities as subsidies yield especially misleading results in general energy subsidies as conventionally understood do exist but only comprise a small portion of some very large recently reported estimates the bulk of which are indirect measures that may have little connection with actual costs to governments or allocational inefficiencies

operative gift and bequest motives the ricardian equivalence theorem which is the proposition that changes in the timing of lump sum taxes have no effect on assumption or capital accumulation depends on the exist of operative altruistic motives for intergenerational transfers these transfers can be bequests from parents to children or gifts from children to parents in order for the ricardian equivalence theorem to hold one of these transfer motives must be operative in the sense that the level of the transfer is not determined by a corner solution resulting from a binding non negativity constraint this paper derives conditions that determine whether the bequest motive will be operative the gift motive will be operative or neither motive will be operative in a model in which consumers are altruistic toward their parents and their children this abstract was borrowed from another version of this item

how large are the impacts of carbon motivated border tax adjustments on china and how to mitigate them shandong social science planning fund program 12djjj12 independent innovation foundation of shandong university iifsdu 2012gn038 ministry of education research of social sciences youth funded projects 13yjc790065 national natural science foundation of china 71203186 71173170 china postdoctoral science foundation 2013m530309 2012t50802

dynamic efficiency in the gifts economy abstract in the standard analysis of overlapping generations economies with gifts from children to parents each generation takes the actions of other generations as given the resulting equilibrium is dynamically inefficient in reality however parents realize that children will respond to higher parental saving by reducing gifts for a broad class of gift economies this implicit tax on saving pushes the equilibrium to dynamic efficiency this result reestablishes the potential relevance of the gift model to the us economy renders moot an important part of the ricardian equivalence debate and provides a motivation for a type of social security system

demonstration effect and dynamic efficiency can dynamic inefficiency be remedied by intergenerational family transfers the issue matters for the connection between fiscal policy and economic growth yet family transfers have mostly been narrowly cast as altruistic i show that an alternative motive the demonstration effect whereby parents transfer to mold preferences of children can generate vastly different results family transfers are positive under dynamic inefficiency these transfers are instrumental to depress capital accumulation so as to approach the golden rule capital stock intuitively family transfers from youth to old age reduce capital accumulation however family transfers are nil under dynamic efficiency unlike public debt both capital accumulation and welfare are not worsened

an analysis of the implications of china s urbanization policy for economic growth and energy consumption abstract china intends to rely on urbanization policies to increase its economic growth even against the backdrop of new constraints on energy consumption this paper investigates the impact of urbanization on economic growth and energy consumption using data from china s 266 prefecture level cities over the 2000 2010 period and examines the heterogeneity of this impact across income and urbanization groups the main results of our empirical estimation indicate that 1 the effect of urbanization on economic growth is positive and significant for the entire sample although it is positive and significant only for high and middle income groups and not the low income group 2 the impact of urbanization on energy consumption is positive and significant for all groups when the sample is divided into three urbanization groups based on the northam curve indicating that urbanization will lead to large increases in energy consumption in summary our empirical results show that urbanization targets will be difficult to achieve in terms of increasing gdp per capita under energy consumption constraints

on vickrey type auction procedures abstract although a vickrey type auction provides a dominant strategy for every buyer bidder even in a multi item setting a seller can manipulate the auction this paper attempts to show that the manipulation can be avoided by suitably modifying the initial price vector

determinacy of equilibrium in an overlapping generations model with heterogeneous agents abstract we study the determinacy of perfect foresight equilibrium near a steady state in an overlapping generations model with production and both altruistic and non altruistic agents having distinct utility functions the proportion of each type of consumer is exogenously given our main results show that when there are positive stationary bequests some standard assumptions on preferences and technology rule out local indeterminacy for any positive value of the proportions in the particular case of a separable utility function for altruistic agents we prove that the determinacy property does not depend on the size of the infinite lived altruistic dynasties journal of economic literature classification numbers c62 d91 o21 o41

government debt redistributive fiscal policies and the interaction between borrowing constraints and intergenerational altrusim abstract we show how borrowing constraints intergenerational altruism and their interaction shape the aggregate savings response to government debt and fiscal policies that redistribute resources between living generations we also characterize the conditions under which borrowing constraints bind and the altruistic transfer motive operates in terms of the strength of the altruism motive the shape of the lifetime productivity profile the willingness to substitute consumption intertemporally and other factors finally we characterize the dynamic response of aggregate savings to nonneutral government debt policies in economies with binding borrowing constraints

nonpaternalistic intergenerational altruism abstract the paper develops a concept of equilibrium behaviour and establishes its existence in a model of nonpaternalistic intergenerational altruism each generation derives utility from its own consumption and the utilities of its successors equilibrium capital stocks are time monotone and therefore converge to a steady state finally when each generation s utility depends on that of at least two successors equilibria may be inefficient this is shown by an example where feasible programs exist providing greater consumption compared to the equilibrium path for every generation

leakage welfare and cost effectiveness of carbon policy policymakers fear that a unilateral carbon policy will reduce competitiveness increase imports and lead to higher carbon emissions elsewhere leakage in fullerton karney and baylis 2012 we show that it may actually reduce emissions in other sectors negative leakage but reducing emissions in both sectors may merely reflect welfare costs of carbon policy that reduce real income and thus reduce consumption of both outputs these possibilities capture the concern that unilateral carbon policy might have a high cost per global unit of carbon abated that is low cost effectiveness based on harberger 1962 the two input two output analytical general equilibrium model of fullerton karney and baylis 2012 could represent two countries or two sectors of a closed economy each sector has some initial carbon tax or price and the paper solves for the effect of a small increase in one sector s carbon tax on the quantity of emissions in each sector but it does not solve for welfare effects here we use the same model but derive expressions for the costeffectiveness of a unilateral carbon tax the welfare cost per ton of emission reduction we show that higher leakage does not always mean lower welfare if one sector is already taxed at a higher rate then an increase in the other sector s tax might reduce deadweight loss from preexisting misallocations thus abatement can have negative cost the welfare cost most directly depends on the relative levels of tax in the two sectors we show that negative leakage always corresponds to a negative income effect but negative income

carbon leakage revisited unilateral climate policy with directed technical change using a stylized theoretical model we argue that current economic analyses of climate policy tend to over estimate the degree of carbon leakage as they abstract from the effects of induced technological change we analyse carbon leakage in a two country model with directed technical change where only one of the countries enforces an exogenous cap on emissions climate policy induces changes in relative prices that cause carbon leakage through a terms of trade effect however these changes in relative prices also affect the incentives to innovate in different sectors this leads to a counterbalancing induced technology effect which always reduces carbon leakage we therefore conclude that the leakage rates reported in the literature may be too high as these estimates neglect the effect of price changes on the incentives to innovate

unilateral co2 reductions and carbon leakage the consequences of international trade in oil and basic materials a recursively dynamic general equilibrium model featuring six world regions with trade in energy and non energy goods is used to simulate the period from 1990 through 2100 in 10 year intervals the simulations explore the effect of unilateral action by the oecd to curb global co2 emissions unilateral cuts create incentives for free riding by non participating regions so that global emissions are reduced by less than the amount that the oecd cuts back its regional emissions carbon leakage occurs through two channels first basic materials production increases in unconstrained regions resulting in increased carbon intensity of gdp second reductions in oecd oil imports cause the world oil price to fall leading to an increased energy intensity in the non participant regions in this paper we use a general equilibrium model to assess the extent to which these two mechanisms reduce the effectiveness of oecd reductions in curbing global co2 concentrations

climate change policy market structure and carbon leakage abstract the 1997 kyoto protocol on climate change obliges the industrialized countries to initiate the international effort of abating anthropogenic greenhouse gas ghg emissions if such an initiative is to be taken the associated competitive effects may lead to significant relocation of developed countries energy intensive production this paper examines this issue i adopt an oligopolistic structure combined with increasing returns to scale production technologies to represent the strategic interaction among the firms producing energy intensive products this representation is then embedded within a multi regional computable general equilibrium model which in turn is used for quantifying these relocational effects the results suggest that significant relocation of energy intensive industries away from the oecd may occur depending on the type of market structure with leakage rates as high as 130 in which case ghg control policies in the industrialized countries actually lead to higher global emissions

trade and carbon taxes we study various scenarios for taxing emissions of carbon dioxide c02 the question is how carbon tax policies will perform given interna tional trade if countries adopt different tax rates we investigate this question quantitatively using cim earth a newly developed open source computable general equilibrium cge model since climate change is a function of global c02 emissions an efficient strategy for control ling emissions would be to impose the same price wherever they occur such an approach presents a free riding problem however because nations have an incentive not to comply while gaining the ben efits of reduced emissions elsewhere moreover because of distributive concerns and claims about

assessing alternative solutions to carbon leakage abstract a modified version of the computable general equilibrium gtap e model is developed in order to assess the economic and carbon emission effects of alternative trade policy measures aimed at reducing carbon leakage we compare several unilateral policy measures implemented by countries subject to an emissions level cap results provide evidence of the scarce effectiveness of these policies in reducing the carbon leakage rate and conversely some of the trade measures that are discussed seem to be more consistent with the goal of protecting market shares of national firms in the domestic markets of abating countries assessing environmental and competitiveness outcomes jointly confirms that a global cooperative solution would be the most effective as well as an efficient policy option for reducing carbon leakage

will carbon motivated border tax adjustments function as a threat abstract due to large incremental carbon emissions china might become an important target country of cbta carbon motivated border tax adjustments to levy cbta could reduce china s emissions meanwhile china s emissions reduction could also be achieved by china s climate policies termed as cbta emissions equivalent policies this paper contributes to the discussion on cbta by comparing the potential regional effects of cbta and cbta emissions equivalent policies the main findings are as follows 1 cbta and cbta emissions equivalent policies would result in relocations of outputs across regions and countries affect the structure of economy and contribute to world s emissions reduction 2 there would be significant differences in the regional effects between cbta and cbta emissions equivalent policies 3 compared to carbon tax cbta would be a costly and inefficient policy instrument to reduce emissions but could function as an effective coercion strategy 4 these policies would result in competitiveness issue and rebound effects wherein different countries would be affected differently china is a large economy and energy consumer with high openness to international trade looking ahead the chinese government should consider the potential interactions between china and other economies when designing tax reforms

estimating carbon leakage and the efficiency of border adjustments in general equilibrium does sectoral aggregation matter abstract estimates of the carbon leakage resulting from sub global climate policies tend to be lower when using economy wide general equilibrium models than what technology specific and bottom up models suggest in order to test whether this difference is due to excessive sectoral aggregation i exploit disaggregated data and estimate unobserved values to create a dataset with rich industrial sector detail the bias caused by sectoral aggregation is estimated by calibrating a computable general equilibrium model to this dataset and comparing results with those generated from more aggregated data a stylized unilateral carbon pricing policy is simulated results show that aggregated calibrations overestimate industrial output loss and underestimate the increase in the co 2 embodied in imports the efficiency of border carbon adjustments at reducing leakage is also underestimated however i find that general equilibrium estimates of carbon prices and economy wide leakage rates are mostly unaffected by the degree of industrial aggregation

social security and endogenous growth abstract this paper examines the effects of social security on the steady state growth of per capita income in an endogenous growth model in which agents care about their own consumption the number of children and the welfare of each child it shows that an unfunded program may simulate growth by reducing fertility and increasing the ratio of human capital investment per child to per family income when bequests are positive also it may cause faster growth than funded programs especially when receipts from funded programs are independent of contributions when voluntary saving is positive funded social security is neutral if receipts are linked to contributions and most likely depresses growth if receipts are independent of contributions

why are there large differences in performances when the same carbon emission reductions are achieved in different countries great interest has been in unilateral climate policies given present difficulty of establishing stable global coordinated agreements in this paper we investigate underlining factors explaining large differences in performances when the same carbon emission reductions are achieved in different abating countries to this end we develop a new multi country general equilibrium model incorporating six countries or world regions two goods six production inputs capital mobility energy mobility and international trade meanwhile we adopt two performance indicators with carbon leakage representing environmental efficiency and carbon emission abatement costs revealing cost effectiveness our findings are as follows firstly there are large differences in performances among these unilateral climate policies as evidenced by large differences in leakage rates and carbon emission abatement costs secondly the new global climate treaties to replace the kyoto protocol should be able to induce more carbon emission reductions in countries with low carbon emission reduction costs since such setting contributes to global cost savings finally developed countries have high carbon emission abatement costs compared with large developing countries china and india in this paper implying that there should be trade off mechanisms between efficiency and equity regarding how to allocate carbon emission reductions among countries

the strategy structure of two sided matching markets we study two sided markets in which agents are buyers and sellers or firms and workers or men and women the agents are to form partnerships which provide them with satisfaction and at the same time make monetary transfers e g salaries or dowries the core of this market game is shown to have a particularly nice structure so that precise answers can be given to questions concerning comparative statics and manipulability the idea of using walrasian equilibrium as a mechanism for making allocations with desirable properties of fairness and efficiency has been studied extensively the scheme involves having agents specify their supply and demand functions the competitive equilibria are then calculated and allocations are made accordingly in general this procedure may run into two difficulties first nonuniqueness if there are several equilibria there may be no fair way to decide which one should be implemented and second manipulability if there is only one equilibrium an informed agent may be able to influence it by suitably falsifying his demand data however as we will show here using the walrasian mechanism does work remarkably well for a certain class of important markets these are the matching markets of our title and they include markets for single items like houses where it is assumed that traders do not wish to acquire more than one item they also include labor markets in which it is desired to match workers with jobs at suitable salaries academic markets in which students are to be assigned to educational institutions marriage markets where men and women are matched through negotiating of dowries it turns out that in these markets both the problems of nonuniqueness and manipulability can be resolved in a

impacts of climate policy on the competitiveness of canadian industry how big and how to mitigate competitiveness concerns have been at the forefront of climate policy debates in canada particularly as a result of its high energy intensity and significant exposure to international markets this paper uses a dynamic computable general equilibrium model to assess the likely impacts on sectoral competitiveness that would accompany efforts to meet greenhouse gas mitigation targets that have been set by the canadian government additionally it evaluates several design mechanisms that could be used to reduce the negative competiveness impacts associated with adoption of domestic climate policies the analysis suggests that several sectors would likely face significant competiveness challenges under a reference scenario in which permits are given to emitters in lump sum however it finds that competiveness impacts can be minimized by using output based recycling of permits or by using border tax adjustments

multi item auctions a collection of items is to be distributed among several bidders and each bidder is to receive at most one item assuming that the bidders place some monetary value on each of the items it has been shown that there is a unique vector of equilibrium prices that is optimal in a suitable sense for the bidders in this paper we describe two dynamic auction mechanisms one achieves this equilibrium and the other approximates it to any desired degree of accuracy

precautionary saving and accidental bequests this paper presents a simple general equilibrium model of precautionary saving and accidental bequests this model is used to analyze the implications of individual lifetime uncertainty for aggregate consumption and capital accumulation a precautionary demand for saving arises because an individual consumer does not know in advance the date at which he will die and he wants to avoid low levels of consumption in the event that he lives longer than expected an implication of this precautionary saving is that when death does occur the consumer is generally holding some wealth which is then passed on to his heirs in the form of an accidental bequest even if all consumers have the same ex ante mortality probabilities there will be some intracohort variation in the date of death consequently there will be a nondegenerate distribution of bequests left by consumers in a cohort this nondegenerate distribution of bequests left by one generation induces variation in the distributions of wealth consumption and bequests of subsequent generations the importance of bequests in aggregate saving has been established by laurence kotlikoff and lawrence summers 1981 who reported that 80 percent of u s household wealth is inherited wealth one interpretation of this finding is that the simple life cycle model without bequest motives is an inadequate description of saving behavior in the united states but the model i present demonstrates that accidental bequests by selfish consumers can account for a potentially sizeable fraction of aggregate wealth although some part of bequests especially by the wealthy undoubtedly results from an explicit bequest motive accidental bequests also play a role in the intergenerational transfer of wealth as well as in the intragenerational variation in wealth in order to focus on the role of accidental bequests i purposely exclude a bequest motive from the specification of the utility function the effects of lifetime uncertainty on individual consumption behavior were first examined formally in a seminal paper by menachem yaari 1965 yaari s model provided the basic framework for virtually all subsequent work on uncertain lifetimes including well known papers by nils hakansson 1969 stanley fischer 1973 robert barro and james friedman 1977 david levhari and leonard mirman 1977 and kotlikoff and avia spivak 1981 however all of these papers focused on the consumption decision of an individual and ignored the effect of accidental bequests on the behavior of the recipients of these accidental bequests 2 as will be shown at various points in this paper changes in the economic environment can have effects on aggregate behavior which differ sharply from the effects on individual behavior because of the endogenous adjustment of bequests the effects of department of economics harvard university cambridge ma 02138 this paper is a revised version of bequests and social security with uncertain lifetimes nber working paper no 1372 june 1984 i thank olivier blanchard john burbidge christopher cavanagh robert clower stanley fischer benjamin friedman elhanan helpman mervyn king nobuhiro kiyotaki laurence kotlikoff robert mcdonald james pesando julio rotemberg lawrence summers lars svensson mark watson and jeffrey wolcowitz for valuable conversations and correspondence i also thank the participants in seminars at boston university columbia university cornell university federal reserve board harvard university university of iowa mit university of minnesota university of montreal national bureau of economic research north carolina state university the wharton school and yale university and two anonymous referees for their helpful comments i also thank the national science foundation for financial support 1 in the presence of perfect annuity and life insurance markets there may or may not be bequests depending on the presence or absence of a bequest motive but there would be no accidental bequests 2 kotlikoff and spivak focus on the role of the family in providing an incomplete annuities market but stop short of a full scale overlapping generations model in which the distribution of bequests is determined endogenously

government debt in an overlapping generations model with bequests and gifts in 1974 robert barro argued that if individuals in successive generations were linked by bequests changes in the stock of government debt or in social security programs would have no effect on the steady state capital stock barro assumed that individuals held static expectations and that the size of the population was constant martin feldstein 1974 1977 had concluded that social security would reduce the capital labor ratio in models that did not admit a bequest motive and in his 1976 comment on barro argued that the introduction of government debt or social security into a perfect foresight dynamic growth model with bequests would still reduce the capital labor ratio barro replied that feldstein s criticisms were invalid if the steady state capital labor ratio were smaller than the golden rule level but would be correct if the opposite were true barro did suggest however that the latter possibility with overaccumulation of capital might be ruled out in his model as it was in miguel sidrauski 1967 but he was unable to demonstrate that the required behavior would be consistent with utility maximization by finite lived individuals 1976 p 345 although recent work by willem buiter 1979 jeffrey carmichael 1979 1982 truman bewley 1981 a b and others has helped to elucidate the nature of overlapping generations models with bequests and gifts and the issues in the barro feldstein debate they remain far from clear the purpose of this paper is to shed a little more light on the subject in what follows i contend that some of the authors cited above either have specified the individual s optimization problem in an asymmetric way or have failed to impose necessary conditions for a sensible optimization problem or both there is a natural specification of the barro model 1 that emphasizes the similarity between this model and optimal growth models see for example david cass 1965 peter diamond 1973 here in steady state equilibrium the aftertax interest rate r must equal the rate at which individuals discount the utility of their heirs p r p has become known as the modified golden rule and a meaningful individual optimization problem requires that p exceed n the natural growth rate of the economy my results confirm barro s hunch about his model in a barro model r must exceed n much of the barro feldstein 1976 interchange which assumed that r could have any relation to n is wrong headed barro and feldstein reach different conclusions about the effects of government debt and social security because they assume different individual utility functions also my results contrast sharply with those of buiter and carmichael for example carmichael concluded that with intergenerational transfers from parents to children bequests r must exceed n but with transfers in the opposite direction n must exceed r 1982 pp 205 06 indeed i believe that the buiter carmichael representation of the barro model is logically faulty see section ii in section i i outline an overlapping generations model with gifts and bequests and derive its steady state properties in the next section i discuss the shortand long run effects of introducing government debt into the model and contrast my results with those

bequest motives social security and economic growth junxi zhang this article conducts a systematic analysis of four bequest motives in a simple model of endogenous growth it analyzes how bequest motives affect fertility savings growth and the effects of pay as you go social security it is found that altruistic and exchange motives give equivalent outcomes if the discount factors are set the same the outcome under the joy of giving motive may involve a higher bequest ratio higher saving and better growth rates than that under altruism if bequests are accidental the equilibrium values will depend on the probability of survival moreover the results provide testable implications on bequest motives jel d1 d9 h55 j1 i introduction although the importance of bequests in aggregate savings has been established by kotlikoff and summers 1981 who reported that 80 of u s household wealth is inherited wealth what bequest motives lead to inheritance remains an unsolved problem yet it is well known that bequest motives have important implications for the behavior of financial markets the macroeconomic impacts of fiscal policies and the intergenerational transmission of inequality in the distribution of wealth at least four hypotheses for the existence of bequests have been discussed in the literature 1 bequests may arise from intergenerational altruism that is parents obtain utility from their heirs utility as well as from their own consumption barro 1974 2 the prospect of bequests is used by parents to induce children to behave as desired by parents bernheim et al 1985 3 bequests may arise from the joy of giving that is parents leave bequests simply because they obtain utility directly from the bequest yaari 1964 1 and 4 bequests may be the unintentional by product of precautionary savings and a stochastic date of death in the absence of an annuity market abel 1985 following barro 1974 and becker 1974 the altruistic bequest motive has been used most frequently however the enormous empirical work using micro data has not led to conclusive evidence on the one hand bernheim et al 1985 cox 1987 and cox and rank 1992 show that bequests are more consistent with exchange than altruism altonji et al 1992 1997 also show that altruism is decisively rejected moreover wilhelm 1996 finds little support for an altruistic theory of bequests on the other hand a recent reexamination of the exchange motive by perozek 1998 shows that the finding of bernheim et al is not robust laitner and juster 1996 find some evidence of altruistic bequests therefore a definite conclusion on bequest motives seems far from over indeed though altruism has not been supported by most of those empirical studies it remains a plausible hypothesis and continues to be used frequently see e g coate 1995 and davies and zhang 1995 abel 1985 argues theoretically that although the simple life cycle model without bequest motives is an inadequate description of the savi ng behavior in the united states as found in kotlikoff and summers 1981 accidental bequests by selfish consumers can account for a sizable fraction of aggregate wealth however little formal empirical work has been done to test whether bequests are accidental or arise from joy of giving given the lack of consensus on bequest motives it is interesting to conduct a systematic theoretical analysis of different bequest motives in a particular context becker et al 1990 and caballe 1995 assume altruism in their models of economic growth wiedmer s 1996 analysis of social security and growth does not consider bequests except ihori 1994 there seems to be no analysis of other bequest motives in the context of economic growth the purpose of this article is to analyze how different bequest motives affect fertility savings and economic growth the article will also examine how the effects of pay as you go social security depend on bequest motives

aspirations habit formation and bequest motive we analyze how the presence of endogenous preferences affects the altruistic bequest motive from parents to children we will show that the existence of habits raises the threshold value of the intergenerational discount factor above which altruistic bequests are positive while aspiration formation could push this value down therefore the dynamic inefficiency of the economy with no altruism is not sufficient to prevent the bequest motive from being operative under aspiration formation we also discuss the implications of public debt when the bequest motive is inoperative and preferences exhibit habit and aspiration formation

price and expenditure elasticities of residential energy demand during urbanization an empirical analysis based on the household level survey data in china abstract urbanization one of the most obvious characteristics of economic growth in china has an apparent lock in effect on residential energy consumption pattern it is expected that residential sector would become a major force that drives china s energy consumption after urbanization process we estimate price and expenditure elasticities of residential energy demand using data from china s residential energy consumption survey crecs that covers households at different income levels and from different regional and social groups empirical results from the almost ideal demand system model are in accordance with the basic expectations the demands for electricity natural gas and transport fuels are inelastic in the residential sector due to the unreasonable pricing mechanism we further investigate the sensitivities of different income groups to prices of the three types of energy policy simulations indicate that rationalizing energy pricing mechanism is an important guarantee for energy sustainable development during urbanization finally we put forward suggestions on energy pricing reform in the residential sector based on characteristics of china s undergoing urbanization process and the current energy consumption situations

free trade and global warming a trade theory view of the kyoto protocol this paper demonstrates how three important results in environmental economics true under mild conditions in closed economies are false or need serious amendment in a world with international trade in goods since the three results we highlight have framed much of the ongoing discussion and research on the kyoto protocol our viewpoint from trade theory suggests a re examination may be in order specifically we demonstrate that in an open trading world but not in a closed economy setting 1 unilateral emission reductions by the rich north can create self interested emission reductions by the unconstrained poor south 2 simple rules for allocating emission reductions across countries such as uniform reductions may well be efficient even if international trade in emission permits is not allowed and 3 when international emission permit trade does occur it may make both participants in the trade worse off and increase global emissions

comparing climate policies to reduce carbon emissions in china new huadu business school research fund national social science foundation of china 12zd059 shandong social science planning fund program 12djjj12 independent innovation foundation of shandong university iifsdu 2012gn038 ministry of education research of social sciences china postdoctoral science foundation 2013m530309