price stability in economies with habit persistence this paper shows that the divine coincidence does not hold in a sticky price model with external habit if a time varying tax rate on labor income is not implemented to fully eliminate the time varying distortions associated with external habit and monopoly power in goods market the required labor income tax rate is inversely related to the risk free real interest rate and the markup in the goods market but it is proportional to the degree of external habit under this circumstance the optimal monetary policy commands a countercyclical interest rate having a perfect negative correlation with tax rate in the sticky price model with external habit if a time invariant tax is the only fiscal instrument then the degree of external habit entails a gap between the private marginal rate of substitution between consumption and labor and the social marginal rate of substitution generating an endogenous trade off between the stabilization of welfare relevant output gap and inflation under this circumstance price stability is not the optimal policy the monetary policy authority should optimally try to undo the time varying distortions associated with external habit and monopoly power in goods market by deviating from price stability

why are taxes so high in egalitarian societies in an analysis of the relative income or relative consumption hypothesis it is shown that if the ratio of agent i s consumption to agent j s consumption enters into the utility function a tax on labor income may increase welfare for all agents if pretax wage inequality is low all agents will unanimously be in favor of such a tax thus there will be a tendency for taxes to be high in societies where pretax wage inequality is low copyright 1995 by the editors of the scandinavian journal of economics

macroeconometric equivalence microeconomic dissonance and the design of monetary policy abstract macroeconometric equivalence means that estimates of dsge models using first order approximations to equilibrium conditions fail to distinguish between alternative preference technology configurations microeconomic dissonance means that the underlying microeconomic differences between ostensibly equivalent models become important when optimal monetary policy is derived the relevance of these concepts is established by analysis of optimal monetary policy using a small scale new keynesian model microeconomic and financial datasets are promising tools with which to overcome the equivalence dissonance problem

routes of money endogeneity a heuristic comparison the paper sets up an analytical framework that is based on simplified balance sheets of the banking the non banking private and the government sectors in order to identify four primary routes through which money can be generated endogenously and to discuss their characteristics these routes approximate if not precisely correspond to the post keynesian accommodationist and structuralist views the new keynesian credit view bank lending channel and a hybrid one respectively copyright the author 2010 published by oxford university press on behalf of the cambridge political economy society all rights reserved oxford university press

cooperative game theory applied to ieas a comparison of solution concepts this paper aims at providing a critical overview of the main solution concepts adopted by the cooperative game theoretical approach in analysing the constitution of an international environmental agreement iea the first part is mainly descriptive and focuses on the basic features of the global warming game characterizing the differences of the cooperative and non cooperative approaches to deal with this theme it then presents the most adopted cooperative solution concepts critically analysing their ratio furthermore two alternative solutions the rawlsian nucleolus and a revisited nash bargaining solution are proposed both based on the concept of minimum feasible core the second part is dedicated to a numerical exercise based on a standard emissions game in order to compare the mentioned concepts with particular focus on their redistributive properties and on their capability to minimize the potential losses caused by free riding the rawlsian nucleolus is among the considered solutions the one with the highest redistributive properties outperforming on this regard the chander and tulkens solution that still tends to prioritize polluted countries the ability of avoiding losses from free riding is shown to be strongly correlated with the redistributive properties of solution concepts till the point that their ranking perfectly coincides

long run welfare under externalities in consumption leisure and production a case for happy degrowth vs unhappy growth in this paper we contribute to the debate on the relationship between growth and well being by examining an endogenous growth model where we allow for externalities in consumption leisure and production we analyze three regimes a decentralized economy where each household makes isolated choices without considering their external effects a planned economy where a myopic planner fails to recognize both leisure and consumption externalities but recognizes production externalities and a planned economy with a fully informed planner we first compare the balanced growth paths under the three regimes and then we numerically investigate the transition to the optimal balanced growth path we provide a number of findings first in a decentralized economy growth or labor or both are greater than in the regime with a fully informed planner and hence are sub optimal from a welfare standpoint second a myopic intervention which overlooks consumption and leisure externalities leads to more growth and labor than in both the decentralized and the fully informed regime third we provide a case for happy degrowth a transition to the optimal balanced growth path that is associated with downscaling of production a reduction in private consumption and an ongoing increase in leisure and well being

cooperation in international environmental negotiations due to a preference for equity this paper demonstrates that cooperation in international environmental negotiations can be explained by preferences for equity within a n country prisoner s dilemma in which agents can either cooperate or defect in addition to the standard non cooperative equilibrium cooperation of a large fraction or even of all countries can establish a nash equilibrium in an emission game however where countries can choose their abatement level continuously equity preferences cannot improve upon the standard inefficient nash equilibrium finally in a two stage game on coalition formation the presence of equity interested countries increases the coalition size and leads to efficiency gains here even a stable agreement with full cooperation can be reached

tax policy and aggregate demand management under catching up with the joneses this paper examines the role for tax policies in productivity shock driven economies with catching up with the joneses utility functions the optimal tax policy is shown to affect the economy countercyclically via procyclical taxes i e cooling down the economy with higher taxes when it is overheating in booms and stimulating the economy with lower taxes in recessions to keep consumption up thus models with catching up with the joneses utility functions call for traditional keynesian demand management policies but for rather unorthodox reasons

welfare implications of the interaction between habits and consumption externalities we analyze the welfare properties of the equilibrium path of a growth model where both habits and consumption externalities affect the utility of consumers our analysis highlights the crucial role played by complementarities between externalities and habits in order to generate an infficient dynamic equilibrium in particular we show that the competitive equilibrium is inefficient when consumption externalities and habit adjusted consumption are not perfect substitutes

contratos curva de phillips y politica monetaria this paper shows how to obtain a short run aggregate supply curve when there are explicit orimplicit contracts in the same way it is possible to obtain an expectation augmented phillips curve then a monetary policy is incorporated to the short run aggregate supply curve or to the phillips curve in order to model the central bank reaction when the actual inflation deviates from the target inflation then a model with a central bank welfare lost function is developed in order to obtain an optimal monetary policy rule which modifies the synthetic version of the taylor rule this model allows making short run comparative static analyses

tax evasion on a social network abstract we relate tax evasion behavior to a substantial literature on social comparison in judgements taxpayers engage in tax evasion as a means to boost their expected consumption relative to others in their social network the unique nash equilibrium of the model relates optimal evasion to a bonacich measure of network centrality more central taxpayers evade more given that tax authorities are now investing heavily in big data tools that aim to construct social networks we investigate the value of acquiring network information we do this using networks that allow for celebrity taxpayers whose consumption is seen widely and who are systematically of higher wealth we show that there are pronounced returns to the initial acquisition of network information especially in the presence of celebrity taxpayers

a two sector model of endogenous growth with leisure externalities abstract this paper considers the impact of leisure preference and leisure externalities on growth and labor supply in a lucas 1988 12 type model as in gomez 2008 7 with a separable non homothetic utility and the assumption that physical and human capital are both necessary inputs in both the goods and the education sectors in spite of the non concavities due to the leisure externality the balanced growth path is always unique which guarantees global stability for comparative static exercises we find that small differences in preferences toward leisure or in leisure externalities can generate substantial differences in hours worked and growth which may play a significant role in explaining differences in growth paths between the us and europe in addition to the mechanisms uncovered in prescott 2004 15 relying on differing marginal tax rates on labor income our model indicates however that a higher preference for leisure or leisure externality implies less growth but also less education attainment which seems counterfactual

a resolution of the equity premium puzzle abstract the introduction of a simple non time additive utility function can explain the equity premium puzzle noted by mehra and prescott with a reasonable value for the relative risk aversion coefficient

monetary policy when interest rates are bounded at zero this paper assesses the importance of the zero lower bound on nominal interest rates for the interest rate channel of monetary policy we simulate several interest rate setting policy rules with ei

optimal dynamic taxation with distinctive forms of social status attainment we examine the role of both consumption and wealth induced social comparisons in setting dynamic optimal income taxation under complete information state invariant labor income taxes are used to remedy the externality caused by consumption induced social comparisons while state contingent capital income taxes are used to remedy the externalities caused by both consumption and wealth induced ones under incomplete information distinct types of agents are subject to an identical marginal capital income tax which removes social comparisons to solve the information problem low productivity agents could be subject to a lower marginal labor tax than high productivity agents which contradicts the traditional result in the mirrlees stiglitz models this article is protected by copyright all rights reserved

keynesian macroeconomics without the lm curve the is lm model has been a central tool of macroeconomic teaching and practice for over half a century legions of earlier writers have offered criticisms of the model that have become familiar with the passage of time the model lacks microeconomic foundations assumes price stickiness has no role for expectations and simplifies the economy s complexities to a handful of crude aggregate relationships but countless teachers students and policymakers have found the model to be a powerful framework for understanding macroeconomic fluctuations recent developments have created new difficulties for the is lm model although the new difficulties are less profound than the traditional ones they are more likely to be fatal like all models the is lm model is not universal its assumptions and simplifications make it better suited to analyzing some issues than others and to describing some economic environments than others but neither the issues nor the environment of macroeconomic fluctuations are fixed in terms of issues one major change is that the debates between keynesians and monetarists about the relative effectiveness of monetary and fiscal policy that were central to macroeconomics in the 1960s and 1970s now play only a modest role in the analysis of short run fluctuations in terms of the environment one important change is that most central banks including the u s federal reserve now pay little attention to monetary aggregates in conducting policy but the is lm model is particularly well suited to presenting the debates between keynesians and monetarists and one of its basic assumptions is that the central bank targets the money supply in short recent developments work to the disadvantage of is lm this observation suggests that it is time to revisit the question of whether is lm is the best

use it or lose it teaching literacy in the economics principles course americans know little about economics recent surveys document shocking gaps in understanding of markets macroeconomic policy and the economics of government both the general public and college students including economics course takers do poorly on questions that check their knowledge in a gallup survey william b walstad and max larsen 1992 most knew that competitive prices are determined by supply and demand but 65 percent of the public and 43 percent of college seniors believed that during a crisis in the middle east government should prohibit oil companies from raising prices p 65 in a harris poll parade magazine 1999 only 58 percent of adults knew that people are likely to respond to a doubling in the relative price of beef by buying more poultry and less beef only one in three understood that those who borrow money at a fixed interest rate are most likely to benefit from inflation in a minneapolis federal reserve survey david fettig 1998 only 30 percent knew that government could reduce high inflation by decreasing spending and the money supply taking a high school or college economics course has little impact on economic understanding walstad and ken rebeck 2002 in a 15 question gallup survey of college seniors college economics course takers scored 9 highschool economics course takers scored 8 and those who took no economics scored 7 walstad and sam allgood 1999 there is hope test takers do better with questions that concern their day to day lives louis harris and associates 1999 and adults believe economics is important 88 percent want politicians to have a good understanding of economics and 96 percent think that basic economics should be taught in high school harris and associates 1999 while objections can be raised about what questions were asked and how they were worded national surveys administered by several respected firms support the same conclusion americans know little about economics

international evidence on sticky consumption growth abstract this paper estimates the degree of stickiness in aggregate consumption growth sometimes interpreted as reflecting consumption habits for thirteen advanced economies we find that after controlling for measurement error consumption growth has a high degree of autocorrelation with a stickiness parameter of about 0 7 on average across countries the sticky consumption growth model outperforms the random walk model of hall 1978 and typically fits the data better than the popular mankiw 1989 model though in a few countries the sticky consumption growth and campbell mankiw models work about equally well

social identification and redistribution in heterogeneous federations evidence from germany and belgium recent evidence of increasing income heterogeneity within developed countries has reignited debates concerning the redistribution of income and wealth in this article we contribute to this debate

political economy of growth with a taste for status abstract this paper investigates the political economy of growth when individuals prefer high levels of relative consumption a pivotal voter determines the equilibrium tax on capital the revenues from which fund the provision of productive public goods the taste for status and the distributions of wealth and political power interact to generate stylized versions of oligarchies middle class democracies and populist democracies a rise in the taste for status increases the role of distributional concerns in policy preferences lowering growth in an oligarchy or populist democracy but increasing it in a middle class democracy in addition the egalitarian redistribution of wealth or political power causes growth to first rise and then fall as the equilibrium tax rate approaches and then exceeds its growth maximizing level generating inverse u shaped relationships between democracy and growth and inequality and growth

the modern view of macroeconomics some critical reflections david romer has proposed a new basic macroeconomic framework the is mp ia model its proponents claim that it represents the modern view of macroeconomics we show that the new framework remains closely attached to the neoclassical synthesis and in addition does not take account of i the empirical evidence on the output inflation trade off ii the evidence on the interdependence of aggregate demand and supply iii the institutional limits of monetary policy and iv the implications for macroeconomic policy of i ii and iii once these aspects have been incorporated short run stabilisation policy is not neutral in the long run the notion of a natural rate of interest becomes untenable and aggregate demand turns into the crucial exogenous variable copyright 2005 oxford university press

optimal emissions tax rates under habit formation and social comparisons abstract the existing climate models ignore the behavioral anomalies of households and conclude that the optimal environmental tax rate should comove with business cycles however this assumption has received extensive criticism recently to this end this paper studies the optimal emissions tax rate when households are bounded rational in particular we calculate the optimal climate policy in a dynamic stochastic general equilibrium dsge model that features households with habit formation internal habits and social comparisons external habits compared to the benchmark model without consumption externality the social comparisons model amplifies consumption volatility but produces a similar response of pollutant emissions in the presence of the three types of economic shocks considered in contrast the habit formation model decreases the volatility of both consumption and pollutant emissions in contrast to the previous result that the optimal emissions tax rate should be procyclical we find that the social comparisons model largely mitigates the procyclicality of optimal emissions tax rates and the optimal emissions tax rates under the habit formation model remain constant in response to all the economic shocks considered

habit formation in consumption and its implications for monetary policy models this paper explores a monetary policy model with habit formation for consumers in which consumers utility depends in part on current consumption relative to past consumption the empirical tests developed in the paper show that one can reject the hypothesis of no habit formation with tremendous condence largely because the habit formation model captures the gradual hump shaped response of real spending to various shocks the paper then embeds the habit consumption specication in a monetary policy model and nds that the responses of both spending and inflation to monetary policy actions are signicantly improved by this modication jel d12 e52 e43

myopia discretion and commitment in a two period as ad model a large body of pedagogical literature has recently emerged to place the new keynesian framework for analyzing business cycle fluctuations and the conduct of monetary policy into undergraduate economics curricula this article develops the graphical apparatus for the analysis of optimal monetary policy in the context of a two period model under alternative assumptions about the formation of inflationary expectations it demonstrates that differences in assumptions about the formation of inflationary expectations translate into quite different conclusions regarding the optimal conduct of monetary policy

estimated general equilibrium models for the evaluation of monetary policy in the us and europe a persistent criticism of general equilibrium models of monetary policy which incorporate nominal inertia in the form of the new keynesian phillips curve nkpc is that they fail to capture the extent of inflation inertia in the data in this paper we derive a general equilibrium model based on optimising behaviour but which also implies a data consistent nkpc specifically our model accounts for nominal inertia in both price and wage setting as well for habits in consumption using us and european data from 1970 to 1998 our parameter estimates reveal that i there is relatively more inertia in price setting in europe ii wage contracts last longer in the us iii the extent of backward looking behaviour in price and wage setting is statistically significant but small in both the us and europe and iv significant habits effects are present in european consumption finally we simulate the effects of monetary policy and find that while the magnitude of the impact of monetary policy on the endogenous variables in our estimated models are similar to other econometric studies the dynamic paths for variables display less inertia than is typically found in studies which use output gaps to proxy changes in marginal costs

social comparisons and optimal taxation in a small open economy in this paper we analyze how international capital mobility affects the optimal labor and capital income tax policy in a small open economy when consumers care about relative consumption the main

multiple bgps in a growth model with habit persistence this paper establishes multiple balanced growth paths in an otherwise standard competitive growth model without externality or distortions and with households preference dependent upon how his her consumption compares to a habit stock formed by his her own past consumption the key feature in our model is that consumption forms habits in combination with existing habits this model establishes multiple equilibria because habit persistence induces an internal intertemporal complementarity effect among consumption flows with current consumption reinforcing future consumption as a result there exist two balanced growth paths with one path exhibiting low consumption and habits and high economic growth and the other path exhibiting high consumption and habits and low growth that is not necessarily a development trap both steady states are saddles but global indeterminacy arises where a high balanced growth path co exists with a low balanced growth path where the two equilibrium paths cannot be pareto ranked and history need not matter for the selection of the equilibrium path

optimal taxation when consumers have endogenous benchmark levels of consumption i examine optimal taxes in an overlapping generations economy in which each consumer s utility depends on consumption relative to a weighted average of consumption by others the benchmark level of consumption as well as on the level of the consumer s own consumption the socially optimal balanced growth path is characterized by the modi ed golden rule and by a condition on the intergenerational allocation of consumption in each period a competitive economy can be induced to attain the social optimum by a lump sum pay as you go social security system and a tax on capital income

testing motives for charitable giving a revealed preference methodology with experimental evidence abstract a large economics literature seeks to understand the reasons why individuals make charitable contributions fundamental features of most models of charitable giving are the inclusion of externalities induced by other agents and the lancasterian characteristics approach to specifying utility functions this paper develops a general revealed preference methodology for testing a variety of preference structures that allow for both externalities and characteristics the tests are simple linear programs that are transparent computationally efficient and straightforward to implement we show how the technique applies to standard models of privately provided public goods and novel models that account for other regarding preferences based on relative consumption and donations among individuals we also conduct an original experiment that enables testing and comparing many models on a single data set our experiment design allows us to focus on intrinsic motivations which are often hard to disentangle from other extrinsic or image effects in field data the results provide the first revealed preference evidence on the importance of social comparisons when individuals make charitable contributions models that include preferences for either relative consumption or donations yield significantly greater explanatory power than the standard model of impure altruism

reassessing discretionary fiscal policy in 1992 president bush proposed legislation intended to speed up the recovery from the 1990 91 recession congress rejected this proposal for countercyclical fiscal policy stimulus in early 1993 president clinton proposed his own stimulus package but congress rejected this proposal too many reasons were given for deciding against these two discretionary fiscal policy proposals but perhaps the most common one was the large federal budget deficit in the early 1990s with the rapid disappearance of budget deficits in recent years this reason to vote against a discretionary fiscal stimulus is unlikely to be mentioned in the next economic cycle discretionary countercyclical fiscal policy again appears to be a politically feasible option but should america use it after so many years of disuse much has happened in macroeconomics since the 1960s and 1970s when discretionary countercyclical fiscal policy was last considered a serious option in the united states first monetary policy making has changed substantially over the last two decades the federal reserve s interest rate decisions have become more explicit more systematic and more reactive to changes in both inflation and output the fed has placed a greater emphasis on keeping inflation low the experience with this new policy has been very favorable inflation has been low since the early 1980s and the real economy has been more stable the 1980s and 1990s saw two lengthy expansions separated by a relatively short and mild recession in terms of the tradeoff between output variability and inflation

solvency rule and capital centralisation in a monetary union brancaccio and fontana 2013 have suggested that the central bank influences the solvency conditions of firms and households in the economic system this solvency rule is examined here within a stylised model of a monetary union characterised by different rates of accumulation and inflation across its two member countries the rule highlights the existence of a relationship between the interest rate set by the central monetary authority and the allocation of ownership of existing physical capital among the member countries of the monetary union i e the rates of capital centralisation the paper also shows the nexus between solvency and government debt sustainability and examines the implications of deflationary or currency devaluation policies for the solvency conditions

consumption network effects in this paper we study the relevance and mechanics of consumption network effects we use long panel data on the entire danish population to construct a measure of consumption based on administrative tax records and define the peer groups in terms of workplace occupation education and age we then apply an iv strategy and fixed effect models to recover the effects our instruments arise naturally from the network structure and firms shocks the estimated effects are statistically significant and relevant for policies as they generate non negligible multiplier effects further the results are consistent with a keeping up model

keeping up with the zhangs and house price dynamics in china abstract this paper studies the effect of social interactions on house price dynamics in china we first present household level evidence on chinese households tendency to keep up with the home ownership status of their communities keep up with the zhangs by means of a dynamic stochastic general equilibrium model we then study the impact of these housing consumption externalities on housing demand and prices our bayesian estimation and simulation reveal that these externalities significantly increase house prices in the long run steady state and amplify their response to shocks housing tax policies can mitigate the amplification effects

teaching modern macroeconomics at the principles level ideas taught at the macroeconomics principles level should satisfy two goals first they should be simple enough to be both understandable and memorable for the beginning student second they should be consistent both with the modem economy and with the macroeconomic models of this economy that are used in practice for policy evaluation there is no necessary conflict between these two goals the greater the consistency between the ideas taught in the classroom and the models used in practice the easier the ideas are to understand and the worthier they are of being remembered it would be an exaggeration to say that a consensus now exists in advanced research about how macroeconomics should evolve in the future debates continue for example about the usefulness of models with representative agents or what it means to have a fully articulated model of money nevertheless at the practical level a common view of macroeconomics is now pervasive in policyresearch projects at universities and central banks around the world this view evolved gradually since the rational expectations revolution of the 1970 s and has solidified during the 1990 s it differs from past views and it explains the growth and fluctuations of the modern economy it can thus be said to represent a modem view of macroeconomics 1 the purpose of this paper is to show how this modem macroeconomics can be taught at the principles level i focus on macroeconomic concepts including economic growth and fluctuations and their graphical representation rather than on techniques of delivery whether active learning experiments or the use of new media 2 the teaching ideas are similar to those used by david romer 2000 and taylor 1998 but the purpose of this paper is to show how closely they represent modern macroeconomics

the new keynesian view of aggregate demand some reflections from a classical sraffian standpoint the paper argues that the derivation of the aggregate demand curve in the new keynesian literature is insufficient to provide the theoretical ground for the use to which it is usually put namely as a theoretical basis for the claim that long run wage and price flexibility would push a capitalist economy to the full employment or natural level of output it is argued that the derivation solely on the basis of the propositions about optimising household consumption expenditures is insufficient to guarantee a decreasing aggregate demand function without circular reasoning this point is clarified by use of a very simple two commodity production model of long run steady states due to spaventa and nell to guarantee a decreasing aggregate demand function the new keynesian approach must invoke the kinds of propositions used in more traditional derivations propositions which themselves are in question on capital theoretic grounds

consumption commitments and habit formation we analyze the implications of household level adjustment costs for the dynamics of aggregate consumption we show that an economy in which agents have consumption commitments is approximately equivalent to a habit formation model in which the habit stock is a weighted average of past consumption if idiosyncratic risk is large relative to aggregate risk consumption commitments can thus explain the empirical regularity that consumption is excessively sensitive and excessively smooth findings that are typically attributed to habit formation unlike habit formation and other theories but consistent with empirical evidence the consumption commitments model also predicts that excess sensitivity and smoothness vanish for large shocks these results suggest that behavior previously attributed to habit formation may be better explained by adjustment costs we develop additional testable predictions to further distinguish the commitment and habit models and show that the two models have different welfare implications

adaptation anticipation and social interaction in happiness an integrated error correction approach abstract adaptation anticipation and social reference effects on happiness are strongly interrelated phenomena however in the existing empirical literature these phenomena are mainly studied in isolation from each other therefore using soep panel data for the years 1984 2007 this study offers an integrated investigation of the implications of these three phenomena for the dynamics of individual life satisfaction i focus on the short and long run effects of income and social reference income but i control for similar dynamics with respect to a large set of control variables gmm estimates for instrumented income variables in an error correction model indicate an insignificant future income effect a significant and positive current income effect and an insignificant long run income effect on life satisfaction with significant hedonic adaptation social reference income has a significant negative and strong impact in the long run but not in the short run consequently increasing own income and reference income by the same percentage tends to have an insignificant effect in the long term but a significant and positive effect in the short term adaptation to an income shock and reinforcement of a reference income shock take place for more than 90 within three years on the basis of these results a more comprehensive explanation of the easterlin paradox than those given in the literature is presented

jealousy and equilibrium overconsumption the idea that the happiness of an individual depends upon the consumption of others is widely viewed as an important feature of our shared social existence recent research in finance has used this idea through consumption externalities to explore asset pricing anomalies consumption externalities potentially break the link between pareto optimality and competitive equilibria and open the door for beneficial government intervention e g lars ljungqvist and harald uhlig 2000 in this paper we delineate two effects that a consumption externality may have an increase in aggregate consumption may a raise the marginal utility of individual consumption relative to leisure and or b lower an individual s utility level we refer to a as keeping up with the joneses henceforth kuj following jordi gali 1994 and we refer to b as jealousy jealousy is a distinct concept from kuj under kuj an individual derives greater utility from additional own consumption relative to leisure when others consume more at the same time higher per capita consumption holding fixed individual consumption can trigger either jealousy so that individual utility falls or admiration so that individual utility rises in section i of this paper we show that jealousy implies that the laissez faire equilibrium consumption level is greater than the optimal level whether preferences exhibit kuj is not necessary for this main result intuitively in the presence of jealousy consumption is similar to pollution overpollution exists because individuals do not take into account the cost of polluting on others not because an increase in economywide pollution makes the return to individual polluting higher similarly overconsumption exists because individuals do not take into account the negative effect of own consumption on jealous others things go in the opposite direction when individuals are admiring in section ii we consider a functional form that encompasses several existing models we show that jealousy determines the optimal tax to correct overconsumption and that kuj is mainly important for asset pricing

we are what we eat obesity income and social comparisons abstract the empirical evidence of a non monotone relation between income and obesity is not well explained we build a theoretical model combining income inequality and social comparisons to explain the link between income and obesity and study tax policy implications for fighting obesity we assume that differences in food consumption patterns between poor and wealthy households partly reflect positionality which is the concern for social status our key assumption is that positionality for low calorie food consumption is positively related to a country s wealth in this framework body weight outcomes reflect competing income and positionality effects yielding the following results we explain the link between average obesity rates and standards of living and suggest the existence of a kuznets curve for obesity in accordance with empirical evidence for cross sections of the population we explain the observed correlation between income and obesity which is positive in poor countries and negative in rich countries we find that increasing the relative cost of high calorie food is less effective at decreasing the relative weight of poor individuals in rich countries than in poor countries

the optimal mix between funded and unfunded pension systems when people care about relative consumption the paper studies the optimal portfolio mix between funded and unfunded pension systems when people care about relative consumption in pay as you go systems with fixed contribution rates pensions are tied to wages this lowers the uncertainty of individuals future relative position thereby increasing the attractiveness of unfunded systems the paper shows analytically that the optimal share of funding decreases with the importance of relative standing a calibrated version of the model suggests that the concern for relative standing has also a quantitatively important impact on the optimal share of funding for reasonable assumptions it is typically around 20

consumption externalities habit formation and equilibrium efficiency we analyze the welfare properties of the competitive equilibrium in a capital accumulation model where individual preferences are subject to both habit formation and consumption spillovers using an additive specification for preferences according to which the argument in the utility function is a linear combination of present and past values of own consumption and consumption spillovers we analyze the circumstances under which these spillovers are a source of inefficiency it is shown that consumption externalities have to interact with habits in order to generate an inefficient dynamic equilibrium finally we characterize optimal tax policies aimed at restoring efficient decentralized paths

social network structure and status competition in status competition studies the utility of heterogeneous individuals typically depends on an economy wide average indicator of status in our model emulative and jealous agents are embedded in an exogenous network where agent specific reference group is determined by the direct link emanating from the agent similarly to ghiglino and goyal 2010 but in a somewhat different framework we show that individual consumption is proportional to the agent s outbound katz bonacich network centrality measure and equilibrium is generally inefficient more important the negative externality associated with each agent depends on her inbound centrality measure the conspicuousness index a tax based on this index combined with a uniform lump sum transfer attains efficiency

estimates of the effectiveness of monetary policy this paper examines various interest rate rules as well as policies derived by solving optimal control problems for their ability to dampen economic fluctuations caused by random shocks a tax rate rule is also considered a multicountry econometric model is used for the experiments the results differ sharply from those obtained using recent models in which the coeffi cient on inflation in the nominal interest rate rule must be greater than one in order for the economy to be stable

monetary and fiscal policy under deep habits allowing habits to be formed at the level of individual goods deep habits can radically alter the fiscal policy transmission mechanism as the counter cyclicality of mark ups this implies can result in government spending crowding in rather than crowding out private consumption in the short run we explore the robustness of this mechanism to the existence of price discrimination in the supply of goods to the public and private sectors we then describe optimal monetary and fiscal policy in our new keynesian economy subject to the additional externality of deep habits and explore the ability of simple policy rules to mimic fully optimal policy we find that the presence of deep habits at empirically estimated levels can imply large externalities that significantly affect the conduct of monetary and tax policy however despite the rise in government spending multipliers implied by deep habits government spending is barely used as a stabilisation tool under the optimal policy

time consistent shapley value allocation of pollution cost reduction we study the problem of allocation over time of total cost incurred by countries in a cooperative game of pollution reduction we compute the characteristic function for all possible coalitions and apply the shapley value to determine a fair distribution of the total cooperative cost among players we design a mechanism for allocation over time of total individual cost so that the initial agreement remains valid for the whole duration of the game

the relative income hypothesis abstract despite its theoretical dominance the empirical case in favor of the permanent income hypothesis is weak contrary to one of its basic implications a growing body of evidence suggests that rich households save a higher proportion of their permanent income than poor households we propose an overlapping generations economy where households care about relative consumption as a result an individual s consumption is driven by the comparison of his lifetime income and the lifetime income of his reference group a permanent income version of duesenberry s 1949 relative income hypothesis across households the savings rate increases with income while aggregate savings are independent of the income distribution

dynamic status effects savings and income inequality this paper advances the hypothesis that the intensity of status preferences depends negatively on the average wealth of society endogenous dynamic status effect in accordance with empirical evidence our theory replicates the contradictory historical facts of an increasing saving rate along with declining returns to capital over time by affecting the dynamics of the saving rate the dynamic status effect raises inequality thereby providing a behavioural mechanism for the observed diverse dynamics of income inequality across countries in countries in which the dynamic status effect is strong weak inequality rises declines over time in response to a positive productivity shock

a model of redistribution under social identification in heterogeneous federations abstract redistribution of resources to accommodate income heterogeneity within a federation is often fiercely debated e g belgium germany or the european union to help elucidate potential drivers behind such debates this article builds on social identity theory to develop a theoretical framework linking jurisdictional identification and preferences towards intra federation redistributive financial flows we show that federal rather than local identification can lead individuals to shift their redistribution preferences against their narrowly defined personal economic interest in contrast to predictions of standard models the sign and strength of this effect depends crucially not only upon individuals characteristics but also upon the social groups i e regions to which they belong we furthermore illustrate that federal rather than regional identification should be more widespread in poorer and or more populous regions within a federation but less common in regions which are very homogeneous internally or very dissimilar from the rest of the federation

relative consumption and tax evasion abstract relative consumption effects or status concerns that feature jealousy in the sense of dupor and liu 2003 boost consumption expenditure if consumption is financed by labour income such status considerations increase labour supply and hence the tax base a higher taxable income in turn can make tax evasion more attractive we show for various specifications of preferences that the tax base effect generally dominates consequently relative consumption effects tend to reduce tax evasion this is true irrespective of whether tax parameters are exogenous guarantee a balanced budget or are set optimally

the effect of religiosity and religious festivals on positional concerns an experimental investigation of ramadan this article examines the effect of religion on positional concerns using survey experiments we focus on two of the dimensions of religion degree of religiosity and religious festivals by conducting the experiments during both the most important day of ramadan the night of power and a day outside ramadan we find that ramadan overall has a small and negative impact on positional concerns detailed analyses based on the sorting of individuals degree of religiosity reveal that the decrease in the degree of positional concerns during ramadan is mainly explained by a decrease in positionality among individuals with a low degree of religiosity

does self fulfilment of the inflation expectation exist abstractthis study examines the causal relationship between the actual and expected inflation in the u s using the bootstrap granger full sample causality test and sub sample rolling window estimation test to illustrate the self fulfilment of inflation expectations the full sample result indicates that there is a bidirectional causality between the actual and expected inflation showing the possibility of self fulfilment of inflation expectations which illustrates that inflation is driven by inflation expectation however considering structural changes in two series we find that the short run causal nexus between the actual and expected inflation using full sample data are fraudulent by adopting a time varying rolling window approach to revisiting the dynamic causal relationships this article identifies that the actual inflation has both positive and negative impacts on the expected inflation in distinct sub periods nevertheless inflation expectation exerts only negative effects on the actual inf

relative consumption of housing marginal saving subsidies and income taxes as a second best policy this paper analyzes whether marginal taxation of labor and capital income are useful second best instruments for internalizing the externalities caused by conspicuous housing consumption when the

macroeconomics without the lm curve an alternative view this paper develops a fully articulated post keynesian alternative to the new consensus macroeconomic model based on explicitly post keynesian hypotheses about the inflation process the income generating process and the appropriate conduct of monetary policy the paper demonstrates how the equilibrium configuration of this model can be manipulated by non monetary policy interventions including fiscal policy and incomes policy one perhaps surprising result that emerges from the analysis is that in the context of the proper policy environment inflation targeting can have a positive impact on real economic performance

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

an alternative model to the open economy new consensus for the analysis of inflation targeting abstract in this paper we will discuss a demand led growth model which is constrained by economic policy in this way we will incorporate an inflation targeting regime in the sraffian supermultiplier model in order to analyze how economic policy can influence the growth rate of productive capacity we will analyze an open economy were inflation is a cost push phenomenon and the monetary authority can manage the nominal exchange rate through changes in interest rate differentials as functional income distribution will depend on the evolution of nominal wages exchange rate and interest rate we will show that inflation target system in addition of not being neutral in terms of long run growth also can lead to different outcomes in terms of functional income distribution

whither russia a review of andrei shleifer s a normal country in this review the author reflects on the heated debates around views about russia s postcommunist transition expressed in essays collected in new andrei shleifer s book a normal country russia after communism harvard university press 2005 which were initially published at different times during transition she focuses on the three questions that have been in the center of the debate among academics and policymakers what should the sequencing and the speed of reforms be should a country have political centralization for fiscal decentralization to be efficient is russia normal the author argues that russia s most recent history provides convincing evidence in support of the logic of political and economic transformation as it was understood by shleifer as early as the beginning of the 1990s

comment on the campbell cochrane habit model campbell and cochrane 1999 formulate a model that successfully explains a wide variety of asset pricing puzzles by augmenting the standard power utility function with a time varying external habit that adapts nonlinearly to current and past average consumption in the economy we demonstrate that their preference specification has the unusual implications that habit can move negatively with consumption and that the social marginal utility can be negative as a result government interventions that occasionally destroy part of the endowment can lead to substantial welfare improvements jel code e21 e44 g12 ljungqvist stockholm school of economics and new york university email lars ljungqvist hhs se uhlig university of chicago email huhlig uchicago edu we thank fernando alvarez and john cochrane for criticisms and suggestions on our earlier exploration of the properties of the campbell cochrane preference specification the present exposition has benefitted much from the comments of the editor and three anonymous referees ljungqvist s research was supported by a grant from the jan wallander and tom hedelius foundation uhlig s research has been supported by the nsf grant ses 0922550

conspicuous leisure optimal income taxation when both relative consumption and relative leisure matter previous studies on public policy under relative consumption concerns have ignored the role of leisure comparisons this paper considers a two type optimal nonlinear income tax model where people care both about their relative consumption and their relative leisure increased consumption positionality typically implies higher marginal income tax rates for both the high ability and the low ability type whereas leisure positionality has an offsetting role however this offsetting role is not symmetric concern about relative leisure implies a progressive income tax component i e a component that is larger for the high ability than for the low ability type moreover leisure positionality does not modify the policy rule for public good provision when the income tax is optimally chosen

genuine saving and positional externalities much evidence suggests that people are concerned with their relative consumption yet positional externalities have so far been ignored in savings based indicators of sustainable development this

reign in hell or serve in heaven a cross country journey into the relative vs absolute perceptions of wellbeing abstract questionnaires exploring the relativist vs absolutist perception of wellbeing are administered to 3883 students in eight different countries four low income countries bolivia brazil kenya and laos 1924 respondents and four high income countries italy sweden switzerland and the uk 1959 respondents our data reveal that wellbeing is perceived mainly in relative terms with the strength of relativism being higher for respondents in high income countries however when the satisfaction of some basic needs is at stake the absolutist concern becomes powerful personal characteristics such as gender and background of studies have a significant role in determining respondents perception of wellbeing finally additional insights emerge from our study interpersonal comparisons take place by looking both upward and downward along the income scale not only income ranking but also the magnitude of reference incomes plays a role and the perception of wellbeing is more elastic to absolute rather than relative income

diversification and its discontents idiosyncratic and entrepreneurial risk in the quest for social status social status concerns influence investors decisions by driving a wedge in attitudes toward aggregate and idiosyncratic risks i model such concerns by emphasizing the desire to get ahead of the joneses which implies that aversion to idiosyncratic risk is lower than aversion to aggregate risk the model predicts that investors hold concentrated portfolios in equilibrium which helps rationalize the small premium for undiversified entrepreneurial risk in the model status concerns are more important for wealthier households consequently these households own a disproportionate share of risky assets particularly private equity and experience greater volatility of consumption consistent with empirical evidence diversification and risk sharing are fundamental principles of modern finance and macroeconomics however empirical evidence suggests that household portfolios are poorly diversified with many people reporting substantial holdings of a single stock for the wealthiest households large shares in closely held businesses constitute a particularly important source of risk e g heaton and lucas 2000a it is not surprising that entrepreneurs bear substantial undiversified risk since it is important for mitigating moral hazard and or adverse selection problems yet from a standpoint of portfolio theory entrepreneurship does not appear to be well compensated implying that many investors are willing to take poorly rewarded risks despite the availability of superior investment opportunities such as public equity that earns a large risk premium e g moskowitz and vissing j0rgensen 2002 hall and woodward 2007

individual well being in a dynamic perspective this paper explores the determinants of individual well being as measured by self reported levels of satisfaction with income making full use of the panel data nature of the german socio economic panel we provide empirical evidence for well being depending on absolute and on relative levels of income in a dynamic framework this finding holds after controlling for other influential factors in a multivariate setting the main novelty of the paper is the consideration of dynamic aspects individual s own history as well as the relative income performance with respect to the others living in the society under analysis do play a major role in the assessment of well being

in search of a theory of debt management the complete market approach to government debt management argues that a portfolio of non contingent bonds at different maturities should be chosen so that fluctuations in market value offset changes in expected future deficits however this approach recommends huge fluctuations in positions enormous changes in portfolios for minor changes in maturities and no presumption it is always optimal to issue long and invest short term in a wide array of model specifications these extreme volatile and unstable features are undesirable for two reasons firstly fragility of portfolios to small changes in assumptions means that it is often better to follow a balanced budget rather than issue the optimal debt portfolio under some possibly misspecified model secondly for even miniscule transaction costs governments prefer a balanced budget rather than the large positions complete markets recommends the complete market recommendations conflict with a number of features we believe are integral to bond market incompleteness e g transaction costs liquidity effects robustness etc and which need to be explicitly incorporated into the portfolio problem