sustainability of the friedman rule in an international monetary policy game this article develops a two country monetary economy model in order to analyze the international monetary policy game between governments and the domestic monetary policy game between each government and its private sector we prove that if governments can commit to their own private sectors the cooperative equilibrium of the game between governments is for them to follow the friedman rule when governments lack such ability to commit we find that the friedman rule is more likely to be sustained in our open economy model than in the closedeconomy model of ireland jel e31 e52 e61 one recurring theme in the analysis of policy making is that in many situations policymakers can benefit from the opportunity to make a binding commitment to restrict their activities one such situation is what is known as the time consistency problem in monetary policy making a government or its monetary authority out of good intention may find it beneficial to generate unexpected inflation to fix some nonmonetary distortion in the economy for example goods market inefficiency due to monopoly power that is characterized by higher than efficient product prices this first best monetary policy however is not time consistent in the sense that firms foresee the government s incentive to impose monetary surprises and set their nominal prices at a higher level as a result the government s attempts to remedy the

distributional effects of a carbon tax in broader u s fiscal reform abstract this paper analyzes the distributional implications of an illustrative 15 carbon tax imposed in 2010 on carbon in fossil fuels we analyze its incidence across income classes and regions both in isolation and when combined with measures that apply the carbon tax revenue to lowering other distortionary taxes in the economy consistent with earlier findings we find that a carbon tax is regressive using tax swap simulations we then subtract the burden of other taxes the carbon tax revenue could displace and compute the net effect on households under three assumptions about how capital and labor income might be distributed

environmental taxation inequality and engel s law the double dividend of redistribution empirical evidence shows that low income households spend a high share of their income on pollution intensive goods this fuels the concern that an environmental tax reform could be regressive we employ a framework which accounts for the distributional effect of environmental taxes and the recycling of the revenues on both households and firms to quantify changes in the optimal tax structure and the equity impacts of an environmental tax reform we characterize when an optimal environmental tax reform does not increase inequality even if the tax system before the reform is optimal from a non environmental point of view if the tax system before the reform is calibrated to stylized data and is thus non optimal we find that there is a large scope for inequality reduction even if the government is restricted in its recycling options

credible public policy abstract credible public policy is defined in a way that incorporates competitive equilibrium behavior for households and subgame perfect nash equilibrium behavior for the government it is shown that the set of all equilibrium outcome paths for credible policies can be constructed by using arguments analogous to those of abreu 1988 for repeated games the results are then extended to systems with state variables simple models of monetary policy and capital taxation are studied by way of example

pigou meets mirrlees on the irrelevance of tax distortions for the second best pigouvian tax this paper extends the mirrlees 1971 model of optimal income redistribution with optimal corrective taxes to internalize consumption externalities using general utility structures and exploring both linear and non linear taxes it is demonstrated that the optimal second best tax on an externality generating good should not be corrected for the marginal cost of public funds since it equals one in the optimal tax system in the optimum distortions of income taxes are equal to marginal redistributional gains if the government does not have access to a non distortionary marginal source of finance the marginal cost of public funds can be either larger or smaller than one depending on subjective preferences for income redistribution the optimal second best corrective tax is then either higher or lower than the pigouvian level the findings in this paper generalize and amend prior results based on representative agent models shedding new light on the weak double dividend hypothesis and on the welfare gains of recycling revenue from environmental taxes

threshold management in a coupled economic ecological system abstract economic analysis of optimal ecosystem management in the presence of a threshold has typically ignored the potential for induced behavioral responses this paper contributes to the literature on non convex ecosystem management by considering the implications of a particular behavioral response in a regional economy that of amenity led growth to changes in ecosystem services generated by a lake ecosystem subject to a eutrophication threshold the essential policy challenge is to achieve optimal levels of lake nutrients and urbanization given that improvements to water quality will induce additional migration and urbanization in the region with attendant ecological impacts we show that policies that ignore the recursive relationship between urbanization and water quality unintentionally exacerbate boom bust cycles of regional growth and decline and risk pushing the system towards long run economic decline in contrast the optimal policy accounts for the behavioral feedbacks to improved ecosystem services and balances regional growth and ecological degradation

sustainable monetary policies abstract this paper uses a model with utility maximizing households monopolistically competitive firms and sticky goods prices to derive a version of barro and gordon s time consistency problem for monetary policy where the government s objectives are consistent with a representative household s preferences the paper applies the methods of chari and kehoe to characterize the entire set of time consistent or sustainable outcomes it goes on to find conditions under which the friedman rule the optimal policy under commitment can be supported when the government lacks a commitment technology

a quantitative analysis of optimal sustainable monetary policies abstract this study examines the quantitative properties of optimal sustainable monetary policies using a monetary model with a stabilization bias as in kurozumi 2008 the optimal sustainable policy is a strategy considered in the absence of commitment technologies however it is implemented following an optimal quasi sustainable policy derived by assuming that the commitment technologies are present this study finds that solving for the policy function of the optimal quasi sustainable policy yields a result basically identical to the ramsey optimal commitment policy under a set of parameters commonly used in the literature the simulation shows two further results policymakers have incentive to deviate from the ramsey optimal commitment policy when the lagged output gap is large and the optimal quasi sustainable policy endogenously diminishes the steadfastness of policymakers commitment

openness and inflation a general equilibrium model of a small open economy is developed to analyse the optimal rate of inflation under discretion once agents welfare is the sole policy objective it is possible to show that openness and inflation no longer have a simple inverse relationship a greater degree of openness may lead the policy maker to want to exploit the short run phillips curve more aggressively even if involves a smaller short run benefit because changes in export demand affect the terms of trade inflation can then be higher in a more open economy

money is an experience good competition and trust in the private provision of money the interplay between competition and trust as efficiency enhancing mechanisms in the private provision of money is studied with commitment trust is automatically achieved and competition ensures efficiency without commitment competition plays no role trust does play a role but requires a bound on efficiency stationary inflation must be non negative and therefore the friedman rule cannot be achieved the quality of money can be observed only after its purchasing capacity is realized in this sense money is an experience good

land use dynamics and the environment we build a benchmark framework to study optimal land use encompassing land use activities and environmental degradation we focus on the spatial externalities of land use as drivers of spatial patterns even if land is immobile by nature location s actions affect the whole space through pollution which flows across locations resulting in both local and global damages in contrast to the previous literature on spatial dynamics we prove that the social optimum problem is well posed i e the solution exists and is unique taking advantage of this result we illustrate the richness of our model by means of a numerical analysis considering a global dynamic algorithm we find that our model reproduces a great variety of spatial patterns related to the interaction between land use activities and the environment in particular we identify the central role of abatement technology as pollution stabilizer allowing the economy to achieve stable steady states that are spatially heterogeneous

green taxes in a post paris world are millions of nays inevitable turning the paris agreement s greenhouse gas emissions pledges into domestic policies is the next challenge for governments we address the question of the acceptability of cost effective climate policy in a real voting setting first we analyze voting behavior in a large ballot on energy taxes rejected in switzerland in 2015 by more than 2 million people energy taxes were aimed at completely replacing the current value added tax we examine the determinants of voting and find that distributional and competitiveness concerns reduced the acceptability of energy taxes along with the perception of ineffectiveness most people would have preferred tax revenues to be allocated for environmental purposes second at the same time of the ballot we tested the acceptability of alternative designs of a carbon tax with a choice experiment survey on a representative sample of the swiss population survey respondents are informed about environmental distributional and competitiveness effects of each carbon tax design these impacts are estimated with a computable general equilibrium model this original setting generates a series of novel results providing information on the expected environmental effectiveness of carbon taxes reduces the demand for environmental earmarking making distributional effects salient generates an important demand for progressive designs e g social cushioning or recycling via lump sum transfers the case of lump sum recycling is particularly striking it is sufficient to show its desirable distributional properties to make it one of the most preferred designs which corresponds to a completely novel result in the literature we show that providing detailed information on the functioning of environmental taxes may contribute to close both the gap between acceptability ex ante and ex post and the gap between economists prescriptions and the preferences of the general public

the carbon implications of declining household scale economies in the united states average household size decreased significantly over the past half century from 1950 to 2010 the number of households increased 72 faster than population size in this paper we consider how this drift toward more and smaller households occurring alongside rising affluence undermines efforts to curb carbon dioxide co2 emissions by eroding household scale economies of consumption and associated co2 emissions to estimate the household scaling of co2 emissions we link consumer expenditure data to an economic input output life cycle assessment model we find that the co2 scaling benefits of cohabitation are compellingly large with the carbon footprint of a representative person cohabiting with others being 23 less on average than if that same person lived alone additionally we find that household scale economies 1 decrease in income reflecting the rise in the percentage of household expenditures devoted to more rival goods and services and 2 increase intuitively in household size reflecting the direct expenditure sharing benefits of cohabitation the combined downward pressure on scale economies from declining household size and rising incomes typifying the trajectory of developing societies toward more and smaller households and rising affluence places significant upward pressure on co2 emissions globally

pattern formation spatial externalities and regulation in coupled economic ecological systems abstract we study the management of ecosystems in which interacting state variables that are affected by management decisions diffuse in space we study pattern formation first in a setting where economic agents maximize myopic profits and ignore spillovers onto agents at other sites and second in the context of a social planner who internalizes these spillovers we compare patterns under these two institutions and study how the differences in the patterns generated by these two institutions impact the design of regulatory schemes to internalize the externalities at the same time we introduce new methods based on fourier series type decompositions that enable us to turn an intractable infinite dimensional optimal control problem into a countable number of finite dimensional optimal control problems as far as we know these methods are new to the economics literature our theory is applied to the management and regulation of a semi arid system

natural resource economics and conservation contributions of agricultural economics and agricultural economists research by agricultural economists on natural resources has been distinguished by an interdisciplinary emphasis and a dynamic perspective it has recognized technological and institutional constraints has been oriented toward solving concrete resource management and policy problems and has emphasized empirical and quantitative analysis agricultural economists have introduced methods for evaluating natural resource conservation efforts for predicting adoption of resource conservation technologies and for designing efficient and sustainable resource management policies they have identified ways of improving land management and preventing land degradation proposed reforms of institutions governing water allocation and water quality and introduced policies for balancing environmental and efficiency considerations in the management of pests biodiversity and livestock diseases their research has had substantial impacts on the formulation of resource conservation policies

sustainability flexibility and inflation targeting abstract this paper examines sustainability of an inflation targeting policy regime in terms of sustainable equilibrium using a canonical model in the recent literature overly flexible inflation targeting is not sustainable strict inflation targeting is sustainable only when shock persistence is high enough

recursive monetary policy games with incomplete information abstract this paper provides recursive methods for analyzing the credible equilibria of an incomplete information monetary policy game the policy game is one in which a discretionary government has a short run temptation to engage in a surprise monetary expansion it also has the opportunity to imitate a government that always implements the ex ante optimal monetary policy actions we derive an algorithm for computing the set of credible equilibrium payoffs we use this algorithm to explore the idea that incomplete information monetary policy games of this kind have fewer equilibria and less indeterminacy than their complete information counterparts

a theory of ambiguity credibility and inflation under discretion and asymmetric information this paper develops a positive theory of credibility ambiguity and inflation under discretion and asymmetric information the monetary policymaker maximizes his own politically motivated objective function that is positively related to economic stimulation through monetary surprises and negatively related to monetary growth the relative importance he assigns to each target shifts stochastically through time his current preference trade off is known to him but not to the public when choosing the state contingent path of money growth for the present and the future the policymaker compares the benefits from current stimulation with the costs associated with higher future inflation expectations current monetary growth conveys information to the public about future money growth because there is persistence in the policymaker s objectives although expectations are rational information is imperfect because monetary control procedures are imprecise as a result the public cannot correctly distinguish persistent changes of emphasis on different policy objectives from transitory monetary control errors the public becomes aware of changes gradually by observing past monetary growth credibility is defined in terms of the speed with which the public recognizes changes in the objectives of the policymaker credibility is lower the noisier monetary control and the more stable the objectives of the policymaker looser monetary control and a higher degree of time preference on the part of the policymaker induce him to produce higher and more variable monetary growth when the policymaker is free to determine the accuracy of monetary control he does not always choose the most effective control available in spite of the fact that monetary surprises always have an expected value of zero the reason is that ambiguous control procedures enable the policymaker to generate positive surprises when he cares more than on average about economic stimulation he leaves the inevitable negative surprises for periods in which he cares more about inflation prevention this result provides an explanation for the fed s preference for ambiguity recently documented by goodfriend 1986 the policymaker is more likely to pick more ambiguous control procedures the more uncertain his objectives and the higher his time preference the paper also provides a theoretical underpinning for the well documented crosscountry positive correlation between the level and the variability of inflation

diffusion induced instability and pattern formation in infinite horizon recursive optimal control this paper develops local stability analysis for deterministic optimal control theory for recursive infinite horizon intertemporal optimization problems where there is a continuum of spatial sites and the state variable can diffuse over these sites we identify sufficient conditions for a type of local instability which emerges from the interaction of the discount rate on the future the curvature of the hamiltonian and the spatial features of the problem we call this phenomenon optimal diffusion induced instability odi we illustrate our analytical methods with three stylized applications the first application is the optimal management of spatially connected human dominated ecosystems the second and third applications are harvesting of spatially interconnected renewable resources jel classification c6 q2

on the efficiency effects of private dis trust in the government abstract we consider a version of the seminal kydland prescott model where in each period some private agents believe the policy announcements made by the government the other agents follow a standard optimizing strategy the fraction of agents who believe the government changes over time according to a word of mouth learning process we show that the initial number of believers and the speed of learning can have drastic consequences for the policy followed and the losses experienced by the different agents in particular the utility of the private sector may jump upwards if the initial number of believers exceeds a given threshold

a framework for the analysis of moderate inflations abstract optimal monetary policy is studied in a model with no contractual restrictions or physical costs of changing prices nevertheless the price level is sticky in a range of mark up indeterminacy and inflation occurs only when employment presses against capacity under full information the monetary authority can exploit price level stickiness to minimize the mark up and keep employment at a constrained optimum without inflation under uncertainty negative aggregate demand shocks produce real contractions and positive shocks raise the price level the monetary authority can raise the likelihood that aggregate demand will maximize employment but at the cost of higher expected inflation

carbon pricing effectiveness and equity abstract the 2015 paris agreement adopted the goal of limiting the rise in global mean temperature to 1 5 2 c above pre industrial levels carbon pricing can play a key role in meeting this objective a cap and permit system or alternatively a carbon tax indexed to a fixed emission reduction trajectory not only can spur cost effective mitigation and cost reducing innovation but also crucially can ensure that emissions are held to the target level the carbon prices needed to meet this constraint are likely to be considerably higher however than existing prices and conventional measures of the social cost of carbon this poses issues of distributional equity and political sustainability that can be addressed by universal dividends funded by carbon revenues

the political theory of the business cycle two strands of recent empirical work pose a challenge for the macro theorist when brought together one is the rational expectations interpretation of the business cycle the other is the political theory of the business cycle this paper attempts a reconciliation of these two strands in a theory where national political parties have to satisfy the preference of their own supporters as well as the floating voter the implications are that party voters evaluate government performance with respect to expected inflation and output and their variances and that parties will pursue different feedback rules

credible monetary policy in an infinite horizon model recursive approaches abstract this paper develops recursive methods to study optimal and time consistent policy in dynamic models we analyze a version of calvo s 1978 monetary model and show that its time consistent outcomes can be completely characterized as the largest fixed point of either of two operators recursive application of these operators provides a computing algorithm which always converges to the set of time consistent outcomes finally we obtain valuable information about the nature of time consistent outcomes it is discovered in particular that all such outcomes are markovian the methods obtained are intuitive and should be useful for many applications journal of economic literatureclassification numbers e61 e52 c61

sustainable plans and mutual default this paper presents a simple general equilibrium model of optimal taxation in which both private agents and the government can default on their debt as a benchmark we consider ramsey equilibria in which the government can precommit to its policies at the beginning of time but in which private agents can default we then consider sustainable equilibria in which both government and private agent decision rules are required to be sequentially rational we adapt abreu s 1988 optimal trigger strategies to completely characterize the entire set of sustainable equilibria in particular we show that when there is sufficiently little discounting and government consumption fluctuates enough the ramsey allocations and policies in which the government never defaults can be supported by a sustainable equilibrium by way of an example we show that the larger the variance of government consumption the easier it is to support good outcomes we also show for moderate discount factors that in the best sustainable equilibrium tax rates are more volatile and debt is smaller than in the ramsey equilibrium

delegation time inconsistency and sustainable equilibrium this paper analyzes the effectiveness of delegation in solving the time inconsistency problem of monetary policy using a microfounded general equilibrium model where delegation and reappointment are explicitly included into the government s strategy the method of chari and kehoe 1990 sustainable plans journal of political economy 98 4 783 802 is applied to characterize the entire set of sustainable outcomes countering mccallum s 1995 two fallacies concerning central bank independence american economic review 85 2 207 211 second fallacy delegation is able to eliminate the time inconsistency problem with the commitment policy being sustained under discretion for any intertemporal discount rate

optimal sustainable monetary policy in recent monetary policy literature optimal commitment policy or its variant from a timeless perspective has been studied with emphasis on welfare gains from policy commitment regardless of its time consistency problem called a stabilization bias with an optimizing model used in the literature we examine sustainable equilibrium of chari and kehoe 1990 and study optimal sustainable policy the policymaker s strategy in the best sustainable equilibrium in the absence of commitment technologies calibrated versions of the model show that the ramsey equilibrium generated by optimal commitment policy is not achievable suggesting that optimal sustainable policy is the desirable policy benchmark from the viewpoint of policy operationality the latter policy involves some issues due to its dependence on the entire history of lagrange multipliers on a sustainability constraint as a guidepost for actual policy conduct that contains no such issues and attains higher social welfare than discretionary policy does we propose a sustainable policy conducted by following a policy rule that achieves the best markov equilibrium

inflation and reputation with generic policy preferences this paper analyzes a reputational equilibrium for inflation under the generic assumption that monetary policy reflects proximate preferences for low expected inflation and positive unexpected inflation the paper stresses the qualitative implication that in a reputational equilibrium the policymaker behaves as if he is concerned about controlling inflation even though he does not have a direct preference for a low actual inflation rate the analysis also shows how the equilibrium inflation rate depends on a decision interval that reflects the underlying real objectives of monetary policy and that determines how fast private agents would react to opportunistic behavior by the policymaker copyright 1990 by ohio state university press

discretionary monetary policy with costly inflation this paper considers how an output cost of inflation affects the discretionary inflation bias we show that conditions exist under which costly inflation actually increases this inflation bias

on the marginal welfare cost of taxation this paper develops a rigorous partial equilibrium analysis of the determinants of margin al welfare cost mwc of taxes on labor earnings it shows that four key parameters interact to determine the magnitude of mwc using aggregate data and plausible ranges of values for the parameters mwc can vary from under 10 percent to more than 300 percent of marginal tax revenue intermediate parameter values sugge st mwc is in the 25 50 percent range however the more extreme estimates cannot be ruled out on the basis of available evidence suggesting that mwc cannot yet be copyright 1987 by american economic association

income growth and atmospheric pollution in spain an input output approach abstract the relationships between economic growth and environmental pressures are complex since the early nineties the debate on these relationships has been strongly influenced by the environmental kuznets curve hypothesis which states that during the first stage of economic development environmental pressures increase as per capita income increases but once a critical turning point has been reached these pressures diminish as income levels continue to increase however to date such a delinking between economic growth and emission levels has not happened for most atmospheric pollutants in spain the aim of this paper is to analyse the relationship between income growth and nine atmospheric pollutants in spain in order to obtain empirical outcomes for this analysis we adopt an input output approach and use namea data for the nine pollutants first we undertake a structural decomposition analysis for the period 1995 2000 to estimate the contribution of various factors to changes in the levels of atmospheric emissions and second we estimate the emissions associated with the consumption patterns of different groups of households classified according to their level of expenditure

on credible monetary policy and private government information credible and optimal monetary policies are considered in environments in which the government observes a signal that is correlated with the state of the economy when the signal is public information it is optimal for monetary policy to be conditioned upon it the extent to which such conditioning should occur when the signal is the private information of the government depends upon the government s incentives to misrepresent information it is shown that in some cases the ramsey policy is incentive compatible in others it is not in the latter cases policy must be constrained to be incentive compatible this may result in penalty phases along the equilibrium path following apparent mistakes by the policy maker it may result in the optimal monetary policy making no use of the signal journal of economic literature classification numbers c73 e52 e58

the suspension of the gold standard as sustainable monetary policy abstract this paper models the gold standard as a state contingent commitment technology that is only feasible during peace monetary policy during war when the gold convertibility rule is suspended can still be credible if the policymaker s plan is to resume the gold standard in the future the dsge model developed in this paper suggests that the resumption of the gold standard was a sustainable plan which replaced the gold standard as a commitment technology and made monetary policy time consistent trigger strategies support the equilibrium private agents retaliate if a policymaker defaults on its plan to resume the gold standard

examining the economic and environmental effects of emissions policies in china a bayesian dsge model abstract the purpose of this study is to build an energy emissions economy dynamic stochastic general equilibrium model to examine the economic and environmental effects of the carbon tax and carbon intensity target the model is calibrated to china s economy the results show that both the carbon tax and carbon intensity target policies have a negative effect on china s economy and environment however the carbon tax exerts more negative effects on the economy and environment than the carbon intensity target moreover the carbon tax shock lasts shorter than the carbon intensity target shock the findings additionally indicate that the effects of the increase in the productivity of energy sectors are greater than those of the increase in the productivity of other sectors thanks to the low carbon technology shock china s carbon dioxide emissions will reduce and output will increase taken together this study highlights the key policy implications associated with the results

distributional impacts of carbon pricing a general equilibrium approach with micro data for households article i nfo many policies to limit greenhouse gas emissions have at their core efforts to put a price on carbon emissions carbon pricing impacts households both by raising the cost of carbon intensive products and by changing factor prices a complete analysis requires taking both effects into account the impact of carbon pricing is determined by heterogeneity in household spending patterns across income groups as well as heterogeneity in factor income patterns across income groups it is also affected by precise formulation of the policy how is the revenue from carbon pricing distributed as well as the treatment of other government policies e g the treatment of transfer payments what is often neglected in analyses of policy is the heterogeneity of impacts across households even within income or regional groups in this paper we incorporate 15 588 households from the u s consumer and expenditure survey data as individual agents in a comparative static general equilibrium framework these households are represented within the mit usrep model a detailed general equilibrium model of the u s economy in particular we categorize households by full household income factor income as well as transfer income and apply various measures of lifetime income to distinguish households that are temporarily low income e g retired households drawing down their financial assets from permanently low income households we also provide detailed within group distributional measures of burden impacts from various policy scenarios

ruling out pareto dominated monetary equilibria abstract it is well known that under nominal money supply rules accomplished through lump sum transfers non uniqueness and non optimality of the resource allocation often obtains in monetary models we show that uniqueness and optimality of the resource allocation obtains if the monetary authority conducts friedman s rule through open market operations our result necessitates and we provide a clarification of existing irrelevance theorems for open market operations our result also provides a partial resolution of the uniqueness efficiency conflict of nominal money supply rules raised by woodford economic theory 4 1994 345 380

central bank design in general equilibrium we study the effects of alternative institutional arrangements for the determination of monetary policy in the context of a capital theoretic general equilibrium economy we consider three institutional arrangements for determining monetary policy the first unconditional majority voting always leads to a substantial inflation bias the second a simple form of bargaining which we interpret as a policy board generally improves on the unconditional majority voting outcome finally we consider a constitutional rule which always achieves the social optimum

optimal random monetary policy with nominal rigidity abstract this paper studies a money in the utility function model with imperfect competition and one period ahead nominal price setting under standard assumptions on preferences friedman s rule setting the money growth rate equal to the household time discount factor generates an equilibrium that is optimal within the class of deterministic policies we then provide conditions under which a random monetary policy increases ex ante expected welfare relative to friedman s rule the result obtains because random policy can reduce the distortion associated with imperfect competition our result exhibits original features relative to existing cases of welfare improving random monetary policy such as polemarchakis and weiss j econom theory 15 1977 345

sticky goods prices flexible asset prices monopolistic competition and monetary policy a monetary general equilibrium asset pricing model with sticky goods prices is developed goods prices are set by monopolistically competitive firms that maximize stock market value equilibria with underutilization of resources excess capacity in some states result in contrast to previous monetary asset pricing models the degree of competition affects capacity utilization monetary policy can affect output and resource utilization in addition to real asset prices depending upon the amount of information available to the monetary authority

sticky price and limited participation models of money a comparison abstract we provide new evidence that models of the monetary transmission mechanism should be consistent with at least the following facts after a contractionary monetary policy shock the aggregate price level responds very little aggregate output falls interest rates initially rise real wages decline by a modest amount and profits fall we compare the ability of sticky price and limited participation models with frictionless labor markets to account for these facts the key failing of the sticky price model lies in its counterfactual implications for profits the limited participation model can account for all the above facts but only if one is willing to assume a high labor supply elasticity 2 percent and a high markup 40 percent the shortcomings of both models reflect the absence of labor market frictions such as wage contracts or factor hoarding which dampen movements in the marginal cost of production after a monetary policy shock 1997 elsevier science b v

the environmental impact of sharing household and urban economies in co2 emissions abstract studies find that per capita carbon dioxide co 2 emissions decrease with household size and urban density the demographic trends of declining household size and dense urbanization therefore produce countervailing effects with respect to emissions we posit that both household and urban economies are driven by proximity and realized through sharing carbon intensive goods with detailed data from the united states consumer expenditure survey we construct a dataset of co 2 emissions at the household level and leverage a unique measure of residential density to estimate household and urban economies our estimates show that dense urban areas have per capita emissions roughly 20 lower than rural areas and that adding an additional member to a household reduces per capita emissions by about 6 we also find that household economies are about twice as large in rural areas as in dense urban areas and develop an explanation for this phenomenon in theory the carbon benefits of dense urbanization have the potential to offset the effects of declining household size however using historical us census data and extrapolating from our estimates we find that lost household economies have outpaced increased urban economies over the past fifty years

monetary policy and policy credibility theories and evidence within the past decade there has been a significant shift in attitude by many western industrialized countries toward the objectives and conduct of national economic policy the events of the 1970s accelerating inflation and stagnant economic growth motivated the view that inflation had created its own stubborn self sustaining momentum that either was not amendable to the influences of conventional macroeconomic policy or else would yield to such influences only at unacceptable costs this led to the development of a program aimed at reestablishing control over prices while minimizing any adverse consequences of anti inflationary policies on output and employment seen as a new monetary experiment the essential ingredients included prudent financial management abstinence from discretionary intervention commitment to intermediate targets and above all prior announcement of these policies evidence of this program and its effects can be found oni the continents of europe north america and latin america and provide further important lessons in anti inflationary management this paper is a survey of recent theoretical developments in monetary policy which among other issues attempt to explain one rationale for this program and the likely consequences thereof to the extent that the new program of monetary and fiscal reform was deliberately made public and impressed upon citizens as an overriding commitment of governments in advance of its execution reflects a prevailing opinion that economic policies are more effective if they are credible to private economic agents this view emphasized forcefully by william fellner 1976 1979 may be seen as being mainly due to the assimilation of the rational expectations hypothesis

strategic monetary policy with non atomistic wage setters monetary policy analyses usually assume an atomistic private sector thereby ignoring potential interactions between policy and wage setting decisions yet non atomistic wage setters are a key feature of several industrialized economies we study the economic consequence of non atomistic agents and show that this qualifies previous results on the effects and desirability of a conservative central banker in particular the central bank aversion to inflation may have a permanent effect on structural employment while no such effect emerges with atomistic agents

lifetime incidence and the distributional burden of excise taxes this implies that low income households in one year have some chance of being higher income households in other years and significantly affects the estimated distributional burden of excise taxes this paper shows that household expenditures on gasoline alcohol and tobacco as a share of total consumption a proxy for lifetime income are much more equally distributed than expenditures as a share of annual income from a longer horizon perspective excise taxes on these goods are therefore much less regressive than standard analyses suggest this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item

the impact of a carbon tax on inequality abstract climate change and economic inequality are inextricably linked despite widespread agreement among researchers and policymakers that a carbon tax is the most efficient mechanism to curb greenhouse gas emissions such a tax exacerbates inequality since low income households spend a greater share of their income on carbon intensive goods using input output tables and detailed expenditure data for the united states we estimate households carbon footprints and examine the impact of a revenue neutral tax of 50 per ton of co2 on multiple forms of inequality devoting carbon tax revenue to fund a carbon dividend makes the policy progressive minimizes redistribution among households of similar means mitigates group based inequalities and benefits 56 of people including 84 in the bottom half of the distribution while some researchers have dismissed dividends on efficiency grounds we show that the double dividend typically associated with labor tax cuts is insufficient to protect the purchasing power of a majority of americans

targets for global climate policy an overview a survey of the economic impact of climate change and the marginal damage costs shows that carbon dioxide emissions are a negative externality the estimated pigou tax and its growth rate are too low to justify the climate policy targets set by political leaders a lower discount rate or greater concern for the global distribution of income would justify more stringent climate policy but would imply an overhaul of other public policies catastrophic risk justifies more stringent climate policy but only to a limited extent

spatial externalities and agglomeration in a competitive industry abstract we introduce spatial spillovers as an externality in the production function of competitive firms operating within a finite spatial domain under adjustment costs spillovers may attenuate with distance and the overall externality could contain positive and negative components with the overall effect being positive we show that when the spatial externality is not internalized by firms spatial agglomerations may emerge endogenously in a competitive equilibrium the result does not require increasing returns at the private or the social level increasing marginal productivity of private capital with respect to the externality or location advantages in fact agglomerations may emerge with decreasing returns to scale declining marginal productivity of private capital with respect to the externality and no location advantage the result depends on the interactions between the structures of production technology and spatial effects as shown in the paper no agglomerations emerge at the social optimum when spillovers are internalized and diminishing returns both from the private and the social point of view prevail numerical experiments with cobb douglas and ces technologies and an isoelastic demand confirm our theoretical predictions

economics of controlling invasive species a stochastic optimization model for a spatial dynamic process we analyze the dynamic process of invasive species control in a spatially explicit and stochastic setting an integer optimization model is applied to identify optimal strategies to deal with invasive species at a steady state optimal strategies depend on the spatial location of invasion as well as on stochastic characteristics of spread and control previous studies of invasive species control have been stochastic or spatial but not both we model a landscape as consisting of multiple cells each of which may be subject to border control or eradication within the cell optimal strategies from the model are characterized as eradication containment or abandonment of control representing the rate of species spread as stochastic rather than deterministic results in less intensive control becoming optimal at equilibrium the optimal strategy may switch from eradication to containment or from containment to abandonment if an infestation occurs at the boundary of the region within which it may spread it is more likely to be optimal to eradicate or contain the species compared to an infestation in the interior of the region if the effectiveness of border control is stochastic then containment is not feasible in the long term but it is still optimal as a temporary measure in some scenarios

central bank reputation in a forward looking model this paper examines whether reputation concerns can induce the central bank to implement the time inconsistent optimal monetary policy in the standard new keynesian model interestingly the forward looking nature of this model enables us to account for the coordination of the private agents on the punishment length of their trigger strategy our results suggest that both the inflation bias and the stabilization bias can be overcome by a reputation concerned central bank for the calibrations used in the literature these results enable us to endogenize woodford s timeless perspective and tend to weaken the case for recent monetary policy delegation proposals

a simple approach to international monetary policy coordination this paper analyzes the strategic interaction between the monetary policies of two countries in an intertemporal general equilibrium model with nominal rigidities and imperfect competition it offers an excursus on non cooperative towards cooperative solutions all the results can be read by comparing the strength of the two biases the monopolistic distortions and the terms of trade externalities in the best feasible allocation the larger country retains some monopolistic distortions while the smaller country reaches the competitive level

climate change policy s interactions with the tax system abstract this paper presents a range of insights from recent literature on how climate change policies and other environmental policies interact with the fiscal system it explores four issues associated with fiscal interactions first it examines how these interactions influence the prospects for a double dividend both an environmental improvement and a reduction in the costs of the tax system second it analyzes how the use of revenues from a carbon tax or from a cap and trade system involving auctioned emissions allowances influences these policies economic costs third it addresses the question whether carbon taxes or cap and trade programs represent more efficient sources of government revenue than other more traditional revenue sources such as income sales or payroll taxes finally it analyzes how fiscal interactions affect the choice between co 2 emissions pricing instruments carbon taxes and cap and trade and other climate policy instruments

sustainable plans and debt abstract this paper presents a simple general equilibrium model of optimal fiscal policy similar to that of lucas and stokey j monet econ 12 1983 55 93 except that we let the government default on its debt we consider sustainable equilibria in which both government and private agent decision rules are required to be sequentially rational we concentrate on trigger mechanisms which specify reversion to the markov equilibrium after deviations by the government and show that such mechanisms cannot support equilibria with positive debt we go on to show by way of examples that there can be more complicated trigger mechanisms which support positive debt journal of economic literature classification numbers e61 e62

time consistent monetary policy with endogenous price rigidity abstract i characterize time consistent equilibrium in an economy with price rigidity and an optimizing monetary authority operating under discretion firms have the option to increase their frequency of price change at a cost in response to higher inflation previous studies which assume a constant degree of price rigidity across inflation regimes find two time consistent equilibria one with low inflation the other with high inflation in contrast when price rigidity is endogenous the high inflation equilibrium ceases to exist hence time consistent equilibrium is unique this result depends on two features of the analysis 1 a plausible quantitative specification of the fixed cost of price change and 2 the presence of an arbitrarily small cost of inflation that is independent of price rigidity