inflation and the fiscal limit abstract we use a rational expectations framework to assess the implications of rising debt in an environment with a fiscal limit the fiscal limit is defined as the point where the government no longer has the ability to finance higher debt levels by increasing taxes so either an adjustment to fiscal spending or monetary policy must occur to stabilize debt we give households a joint probability distribution over the various policy adjustments that may occur as well as over the timing of when the fiscal limit is hit one policy option that stabilizes debt is a passive monetary policy which generates a burst of inflation that devalues the existing nominal debt stock the probability of this outcome places upward pressure on inflation expectations and poses a substantial challenge to a central bank pursuing an inflation target the distribution of outcomes for the path of future inflation has a fat right tail revealing that only a small set of outcomes imply dire inflationary scenarios avoiding these scenarios however requires the fiscal authority to renege on some share of future promised transfers

exhaustible resource allocation in an overlapping generations economy abstract this paper analyzes competitive allocations of an exhaustible resource in an overlapping generations economy conditions are given for the existence of equilibrium extraction rules such that both extraction and investment in future stocks are increasing and continuous in the current stock the paper then considers the time paths of equilibrium allocations and shows that there are economies where equilibrium resource extractions and prices exhibit nonclassical behavior this is illustrated through a finite horizon example in which extractions increase and prices decrease over the entire time horizon and an infinite horizon example where there are persistent cycles in extractions and prices and multiple equilibria the paper concludes by examining welfare issues

a class of tractable incomplete market models for studying asset returns and risk exposure abstract we present a class of tractable incomplete market models where agents face both aggregate risk and limited participation in financial markets tractability relies on the assumptions of small asset volumes and of a period utility function that is linear beyond a threshold in line with fishburn s 1977 contribution in decision theory we prove the existence of an equilibrium and derive theoretical results regarding asset prices and consumption choices this small trade model is able to reproduce a low safe return and a high equity premium together with a realistic representation of household exposure to both idiosyncratic and aggregate risks

the zero lower bound the dual mandate and unconventional dynamics abstract this paper examines monetary policy when it is constrained by the zero lower bound zlb on the nominal interest rate our analysis uses a nonlinear new keynesian model with technology and discount factor shocks specifically we investigate why technology shocks may have unconventional effects at the zlb what factors affect the likelihood of hitting the zlb and the implications of alternative monetary policy rules we initially focus on a new keynesian model without capital model 1 and then study that model with capital model 2 the advantage of including capital is that it introduces another mechanism for intertemporal substitution that strengthens the expectational effects of the zlb four main findings emerge 1 in model 1 the choice of output target in the taylor rule may reverse the effects of technology shocks when the zlb binds 2 when the central bank targets steady state output in model 2 a positive technology shock at the zlb leads to more pronounced unconventional dynamics than in model 1 3 the presence of capital changes the qualitative effects of demand shocks and alters the impact of a monetary policy rule that emphasizes output stability and 4 in model 1 the constrained linear solution is a decent approximation of the nonlinear solution but meaningful differences exist between the solutions in model 2

optimal fiscal and monetary policy with occasionally binding zero bound constraints abstract this paper studies optimal fiscal and monetary policy when the nominal interest rate is subject to the zero lower bound zlb constraint in a stochastic new keynesian economy in the baseline model calibrated to match key features of the u s economy it is optimal for the government to increase its spending when at the zlb in the stochastic environment by about 60 percent more than it would in the deterministic environment the presence of uncertainty creates a unique time consistency problem if the steady state is inefficient although access to government spending policy increases welfare in the face of a large deflationary shock it decreases welfare during normal times as the government reduces the nominal interest rate less aggressively before reaching the zlb

existence and uniqueness of equilibrium in nonoptimal unbounded infinite horizon economies abstract in applied work in macroeconomics and finance nonoptimal infinite horizon economies are often studied in which the state space is unbounded important examples of such economies are single sector growth models with production externalities valued fiat money monopolistic competition and or distortionary government taxation although sufficient conditions for existence and uniqueness of markovian equilibrium are well known for the compact state space case no similar sufficient conditions exist for unbounded growth this paper provides such a set of sufficient conditions and presents a computational algorithm that will prove asymptotically consistent when computing markovian equilibrium

the identification of monetary policy disturbances explaining the liquidity puzzle abstract this paper examines recent work on the identification of monetary policy disturbances its main finding is that the empirical anomalies found in the literature reflect a failure to properly address the federal reserve s policy of accommodating reserve demand shocks a new method of identifying monetary policy using nonborrowed reserves is proposed using this specification policy has a strong persistent liquidity effect regardless of subsample policy granger causes output even in the presence of interest rates explaining approximately 49 of the variance in output at a two year horizon and the residual explanatory power of interest rates for output is negligible

robust policymaking in the face of sudden stops abstract this paper considers tax policies to deal with sudden stops declines in aggregate activity that are magnified by a binding collateral constraint that occasionally occur in emerging market economies households and or the government are assumed to face model uncertainty and desire robustness against alternative models welfare gains from optimal taxation are small if the government trusts its model of household expectations whether those expectations are altered by model uncertainty or not in contrast welfare losses are large if the government is uncertain about the household s probability model

exogenous tax changes and interest rates testing for ricardian equivalence using an efficient markets model this article tests the ricardian theory i e barro 1974 using mishkin s 1981 1982 efficient markets model of interest rates employing romer and romer s 2010 measure exogenous tax changes i am able to test whether the u s bond market reacts in a keynesian or ricardian manner to exogenous tax policy changes this helps avoid the endogeneity problems associated with measuring the interest rate effects of deficits and provides a cleaner test of the pure ricardian thought experiment i find a significant negative relationship between tax changes and interest rates which is inconsistent with the ricardian model and support the keynesian crowding out framework

unfunded liabilities and uncertain fiscal financing we develop a rational expectations framework to study the consequences of alternative means to resolve the unfunded liabilities problem the projected exponential growth in federal social security medicare and medicaid spending with no known plan for financing the transfers resolution requires specifying a probability distribution for how and when monetary and fiscal policies will change as the economy evolves through the 21st century beliefs based on that distribution determine the existence of and the nature of equilibrium we consider policies that in expectation combine reaching a fiscal limit some distorting taxation modest inflation and some reneging on the government s promised transfers in the equilibrium inflation targeting monetary policy and debt targeting tax policy cannot anchor expectations on those target variables expectational effects are always present but need not have large impacts on inflation and interest rates in the short and medium runs in the economy s stationary distribution the capital stock may grow or shrink and substantial probability falls on little or no reneging

on non existence of markov equilibria in competitive market economies abstract this paper presents some examples of regular dynamic economies with externalities and taxes that either lack existence of a markov equilibrium or such equilibrium is not continuous these examples pose further challenges for the analysis and computation of these economies journal of economic literature classification numbers c10 c62

how well do linear approximation methods work abstract in this paper we investigate the accuracy of approximating policy functions for three different approximation methods in the context of a neoclassical model with a production tax we find that a variant of the king plosser and rebelo procedure yields the best approximations overall but that in certain instances researchers may be better off using a discrete state space solution to the euler equations of the model

downward nominal wage rigidity and state dependent government spending multipliers abstract despite much empirical evidence on business cycle dependent government spending multipliers the theoretical channels underlying such results are uncertain in an environment with involuntary unemployment this paper shows that downward nominal wage rigidity which arises only in recessions can generate business cycle dependent government spending multipliers in line with keynesian views a demand stimulus reduces unemployment in recessions and may not drive up inflation and wages as in expansions thus the positive income effects from reduced unemployment and weaker crowding out effects from a smaller increase in the real interest rate enhance the expansionary spending effects in recessions the theoretical implications are largely consistent with existing empirical evidence on business cycle dependent government spending effects on key macroeconomic variables

uniqueness of an equilibrium in infinite horizon economies subject to taxes and externalities abstract this paper verifies the uniqueness of an equilibrium for a class of stochastic infinite horizon economies with capital that are subject to distortionary taxes or externalities the proof develops the property of concavity for a nonlinear monotone operator whose fixed points correspond to equilibria as the underlying monotone operator has been useful for establishing the existence of an equilibrium and for computing an equilibrium this approach also brings under one roof the study of existence uniqueness and approximation of an equilibrium in distorted economies journal of economic literature classification numbers c60 h20

stability global dynamics and markov equilibrium in models of endogenous economic growth abstract this paper studies the local and global dynamics of two sector models of endogenous growth with economy wide external effects and taxes on capital and labor the local analysis classifies the parameter space depending on the number of stationary solutions and local stability of equilibria the global analysis shows that if taxes are within certain bounds and the size of the external effects on the average level of human capital is smaller than the share of physical capital the equilibrium path is monotone and therefore a continuous markov equilibrium can be constructed

exact likelihood computation for nonlinear dsge models with heteroskedastic innovations abstract phenomena such as the great moderation have increased the attention of macroeconomists towards models where shock processes are not log normal this paper studies a class of discrete time rational expectations models where the variance of exogenous innovations is subject to stochastic regime shifts we first show that up to a second order approximation using perturbation methods regime switching in the variances has an impact only on the intercept coefficients of the decision rules we then demonstrate how to derive the exact model likelihood for the second order approximation of the solution when there are as many shocks as observable variables we illustrate the applicability of the proposed solution and estimation methods in the case of a small dsge model

loss aversion and the asymmetric transmission of monetary policy there is widespread evidence that monetary policy exerts asymmetric effects on output over contractions and expansions in economic activity while price responses display no sizeable asymmetry to rationalize these facts we develop a dynamic general equilibrium model where households utility depends on consumption deviations from a reference level below which loss aversion is displayed state dependent degrees of real rigidity and elasticity of intertemporal substitution in consumption generate competing effects on output and inflation contractions face the central bank with higher responsiveness of output to interest rate changes as well as a flatter aggregate supply schedule

inequality leverage and crises the paper studies how high leverage and crises can arise as a result of changes in the income distribution empirically the periods 1920 1929 and 1983 2007 both exhibited a large increase in the income share of the rich a large increase in leverage for the remainder and an eventual financial and real crisis the paper presents a theoretical model where these features arise endogenously as a result of a shift in bargaining powers over incomes a financial crisis can reduce leverage if it is very large and not accompanied by a real contraction but restoration of the lower income group s bargaining power is more effective

equilibria in distorted infinite horizon economies with capital and labor abstract this paper studies a broad class of infinite horizon economies that are subject to externalities taxes or other distortions these economies are formulated in discrete time are subject to uncertainty and consist of households that accumulate capital and elastically supply labor for this class of economies methods are developed for proving the existence of an equilibrium for characterizing an equilibrium and for verifying at a computational level that an equilibrium is unique some applications of these methods to real and monetary economies are discussed journal of economic literature classification numbers c6 e6

monetary policy and long term interest rates an efficient markets approach abstract this paper is an application of efficient markets theory to analyze empirically the relationship of money supply growth and long term interest rates this approach has the advantage over calier research on this subject in that it imposes a theoretical structure on this relationship that flows easier interpretation of the empirical results as well as more powerful statistical tests on the interest of ascertaining the robustness of the results many different empirical tests are carried out in this paper and they uniformly do not support the preposition that increases in the money supply are correlated with declines in long rates

regime switching debt and taxation the effects of changes to the tax rate are studied within a framework where an estimated regime switching process for the debt output ratio is embedded in a standard growth model the regime is a hidden state variable so agents face a signal extraction problem consequently agents incorporate the possibility of switching to different fiscal regimes when forming expectations over future taxes decision rules have additional nonlinearity relative to fixed regime models income allocation and the tax elasticity of investment depend on agents inference regarding the regime specifically the tax elasticity can be either positive or negative depending on whether agents perceive a tax reform as an intra regime shock or change in regime

welfare and optimum dynamic taxation of consumption and income abstract this paper estimates that the us could attain large welfare gains by implementing an optimal ramsey tax policy that taxes consumption and income it is also found that the welfare implications associated with taxing consumption are quantitatively more important than those associated with dynamically taxing income indeed replacing income taxes with a constant consumption tax leads to a welfare gain that is only slightly lower than that attained by a dynamic policy that taxes consumption and income in computing these welfare gains careful attention is given to the dynamic path of tax rates and the transitional dynamics associated with how the economy responds to a new tax policy

existence and uniqueness of equilibrium in distorted dynamic economies with capital and labor abstract in this paper we provide a set of sufficient conditions under which recursive competitive equilibrium exists and is unique for a large class of distorted dynamic equilibrium models with capital and elastic labor supply we develop a lattice based approach to the problem the class of economies for which we are able to obtain our existence and uniqueness result is considerably larger than those considered in previous work we conclude by applying the new results to some important examples of monetary economies often used in applied work journal of economic literature classification numbers c62 d51 d90 e10

the equity premium and the allocation of income risk abstract this paper examines the extent to which the equity premium puzzle can be resolved by taking account of the fact that stockholders bear a disproportionate share of output uncertainty we do this in the context of a non walrasian rbc model where risk reallocation is justified by borrowing restrictions the risk shifting mechanism we propose has the same effect as would arise from an increase in the risk aversion parameter of the representative agent and thus contributes to a rise in the equity premium as with more standard rbc models it remains that our model is unable to replicate key financial statistics in particular the observation that the equity return is more variable than national product cannot be accounted for under standard technology assumptions

money supply announcements interest rates and foreign exchange abstract this paper presents a test of the joint hypothesis that money supply announcements affect the real interest rate and that changes in the real interest rate affect the exchange rate in the short run the test results are consistent with the joint hypothesis for example it is found that announcement of an unexpected jump in the money supply is accompanied by an increase in interest rates and an appreciation of the dollar if the rise in interest rates was entirely due to higher inflationary expectations the dollar should not appreciate

monetary policy regimes and beliefs this paper investigates the role of beliefs over monetary policy in propagating the effects of monetary policy shocks within the context of a dynamic stochastic general equilibrium model in this model monetary policy periodically switches between low and high money growth regimes when individuals cannot observe the regime directly they must draw inferences over regime type based on historical money growth rates the authors show that for an empirically plausible money growth process beliefs evolve slowly in the wake of a regime change as a result their model is able to capture some of the observed persistence of real and nominal variables following such a regime change

introduction to a general equilibrium approach to economic growth abstract endogenous growth theory has had some success in explaining the observed data related to the process of economic growth however the results of the models in this literature are typically very sensitive to their micro economic structure it is therefore important to understand how the growth process behaves under more general specifications of such features as the number of commodities the number and preferences of consumers the factors of production and the financial and information structures in other words valuable insights can be gained by integrating growth theory into the framework of general equilibrium theory the summary of the papers in this volume focuses on seven issues that are crucial to this integration and highlights the contributions of the papers to the resolution of these issues journal of economic literature classification numbers c61 d50 d90 f43 o30 o41

financial integration and growth in a risky world abstract we revisit the debate on the benefits of financial integration in a two country neoclassical growth model with aggregate uncertainty the framework accounts simultaneously for gains from a more efficient capital allocation and gains from risk sharing together with their interaction global numerical methods allow for meaningful welfare comparisons gains from integration are quantitatively small even for riskier and capital scarce emerging economies these countries import capital for efficiency reasons before exporting it for self insurance leading to capital flows and growth reversals along the transition this opens the door to richer empirical implications than previously considered in the literature

dynamic information acquisition and time varying uncertainty abstract this paper studies the role of information acquisition in propagating stabilizing uncertainty shocks in a dynamic financial market in a static world uncertainty raises the value of information which encourages more information acquisition in a dynamic world however uncertainty can depress information acquisition through a dynamic complementarity channel more uncertainty induces future investors to trade more cautiously this renders future resale stock price less informative and reduces the value of information today due to the dynamic complementarity transitory uncertainty shocks can have long lasting impacts direct government purchases can stimulate information production eliminate equilibrium multiplicity and attenuate the impacts of uncertainty shocks by raising the effective risk bearing capacity of the informed investors

monetary and fiscal policy switching a growing body of evidence finds that policy reaction functions vary substantially over different periods in the united states this paper explores how moving to an environment in which monetary and fiscal regimes evolve according to a markov process can change the impacts of policy shocks in one regime monetary policy follows the taylor principle and taxes rise strongly with debt in another regime the taylor principle fails to hold and taxes are exogenous an example shows that a unique bounded non ricardian equilibrium exists in this environment a computational model illustrates that because agents decision rules embed the probability that policies will change in the future monetary and tax shocks always produce wealth effects when it is possible that fiscal policy will be unresponsive to debt at times active monetary policy like a taylor rule in one regime is not sufficient to insulate the economy against tax shocks in that regime and it can have the unintended consequence of amplifying and propagating the aggregate demand effects of tax shocks the paper also considers the implications of policy switching for two empirical issues

the inflation tax in a convex model of equilibrium growth a general equilibrium monetary economy is described that exhibits equilibrium growth the production technology is consistent with jones and manuelli 1990 and rebelo 1991 the inflation tax and nominal interest rates are shown to be inversely related to the equilibrium growth rates of real variables until a critical point is reached at this point equilibrium growth is eliminated and the predictions of stockman 1981 and abel 1985 concerning the level effects of distortionary monetary policies appear for the nominal side of the model a version of the prediction of friedman 1969 is shown to hold for a particular balanced growth path following king and rebelo 1990 a linear growth version of the model is calibrated to illustrate the potentially large growth and welfare effects of moderate inflations

regime switches agents beliefs and post world war ii u s macroeconomic dynamics the evolution of inflation and output over the last 50 years is examined through the lens of a micro founded model that allows for changes in the behavior of the federal reserve and in the volatility of structural shocks agents are aware of the possibility of regime changes and their beliefs have an impact on the law of motion underlying the macroeconomy the results support the view that there were regime switches in the conduct of monetary policy however the behavior of the federal reserve is identified by repeated fluctuations between a hawk and a dove regime instead of by the traditional pre and post volcker structure counterfactual simulations show that if agents had anticipated the appointment of an extremely conservative chairman inflation would not have reached the peaks of the late 70s and the inflation output trade off would have been less severe these beliefs counterfactuals are new in the literature finally the paper provides a bayesian algorithm to handle the technical difficulties that arise in a rational expectations model with markov switching regimes

money and output a test of reverse causation this paper attempts to explain the correlation between money and output at various leads and lags with a model in which money is largely neutral and endogenously responds to output money is endogenous because both monetary policy and deposit creation are endogenous parameters are selected according to the simulated moments estimation technique while the estimated model succeeds along some dimensions in matching properties of postwar u s data its failure to match key patterns of lead lag correlations seems to cast doubt on the ability of endogenous money determination by itself to quantitatively account for the observed money output correlations copyright 1996 by american economic association

the 2014 farm bill and the wto the 2014 farm bill reduced expected budgetary costs of us farm programs according to estimates prepared by the congressional budget office cost projections are very sensitive to market conditions and program participation assumptions and stochastic analysis indicates that farm program costs could easily differ from expected values by 5 billion or more in any given year by replacing direct payments with new policies that make payments tied to market prices and yields the bill could have important world trade organization wto implications if the new policies are classified as non commodity specific amber box support projections indicate that existing wto limits on the current aggregate measure of support would not be exceeded on average but could be under some market conditions furthermore the new policies are very likely to exceed some wto rules proposed by various parties in the doha round negotiations

forward guidance and the state of the economy this paper analyzes forward guidance in a nonlinear model with a zero lower bound zlb on the nominal interest rate forward guidance is modeled with news shocks to the monetary policy rule which capture innovations in expectations from central bank communication about future policy rates whereas most studies use quasi linear models that disregard the expectational effects of hitting the zlb we show how the effectiveness of forward guidance nonlinearly depends on the state of the economy the speed of the recovery the degree of uncertainty the policy shock size and the forward guidance horizon when households account for the zlb jel e43 e58 e61

equilibrium in a production economy with an income tax this paper develops a method to study an infinite horizon production economy distorted by a state dependent income tax this setting permits taxes to depend on the capital stock an endogenous state variable and thus captures situations where the evolution for capital and taxes is jointly determined to solve this model the consumption function is represented as a fixed point of a nonlinear monotone operator that is defined such that its nth iteration computes the consumption function n steps away from the horizon for a corresponding finite horizon economy the oparator s monotonicity is exploited in proving the existence of and constructing an equilibrium copyright 1991 by the econometric society

the return of the liquidity effect a study of the short run relation between money growth and interest rates in this article i use band pass filters to investigate the short run relationship between money growth and interest rates i find a negative correlation between short run movements in money growth and interest rates which i interpret as evidence that the liquidity effect dominates the anticipated inflation effect

sovereign default risk and state dependent twin deficits abstract this paper analyzes the impact of the government debt to gdp ratio on the correlation of the fiscal balance and the current account above a government debt to gdp ratio of 90 percent the correlation of the two balances decreases by 0 16 in a sample of 12 euro area countries and by 0 17 for greece ireland portugal and spain this paper develops a small open economy model with defaultable government debt and riskless international capital markets to explain the empirical evidence of a state dependent change in the correlation in the model high public debt to gdp ratios raise sovereign risk premia as the default probability increases leading to higher uncertainty about future taxes in this case precautionary savings of households increase and partially compensate current account deficits that result from fiscal deficits the increase in households saving reduces the correlation of the two balances by the same magnitude as documented in the data the model calibrated to greece matches further business cycle moments and the empirical default frequency

business cycles and labor market search the quantitative implications of labor market search for economic fluctuations are evaluated in the context of a real business cycle model incorporating labor market search into the model is found to improve its empirical performance along several dimensions in particular hours now fluctuate substantially more than wages and the contemporaneous correlation between hours and productivity falls in addition the model replicates the observation that output growth displays positive autocorrelation at short horizons overall the empirical results suggest that the labor market search environment embodies a quantitatively important propagation mechanism copyright 1996 by american economic association

finite lifetimes long term debt and the fiscal limit abstract the u s faces exponentially rising entitlement obligations i introduce a fiscal limit a point where higher taxes are no longer a feasible financing mechanism into a perpetual youth model to examine how intergenerational redistributions of wealth the average duration of government debt and entitlement reform impact the consequences of explosive government transfers three key findings emerge 1 growing government transfers cause more severe and more persistent stagflation than in representative agent models that do not capture intergenerational transfers of wealth 2 a longer average duration of government debt pushes the financing of government liabilities into the future and reduces the short run impacts of explosive transfers 3 the time it takes the economy to rebound from a period of growing transfers increases exponentially with the number of years it takes to pass entitlement reform

uncertain fiscal consolidations the paper explores the macroeconomic consequences of fiscal consolidations whose timing and composition are uncertain drawing on the evidence in alesina and ardagna 2010 we emphasize whether or not the fiscal consolidation is driven by tax rises or expenditure cuts we find that the composition of the fiscal consolidation its duration the monetary policy stance the level of government debt and expectations over the likelihood and composition of fiscal consolidations all matter in determining the extent to which a given consolidation is expansionary and or successful in stabilizing government debt

uniqueness of markov equilibrium in stochastic olg models with nonclassical production a large class of stochastic olg economies with nonclassical production is shown to possess a unique markov equilibrium me which is also the unique sequential equilibrium additional properties such as monotonicity continuity and smoothness of the me are also discussed

are forign exchange intervention and monetary policy related and does it really matter the relationship between foreign exchange intervention and monetary policy underlies the question of whether sterilized interventions can affect the exchange rate in this article the author examines this relationship using data on u s foreign exchange interventions from 1985 to 1990 recently made publicly available she examines whether interventions could be viewed as signaling changes in future monetary policy variables the author also considers whether changes in monetary policy may induce interventions in an effort by central bankers to lean against the wind of exchange rate movements interestingly she finds evidence both that interventions help predict monetary policy variables and that monetary variables help predict interventions copyright 1995 by university of chicago press

when do borrowing constraints bind some new results on the income fluctuation problem abstract the empirical failure of the permanent income hypothesis has prompted researchers to investigate models in which consumers are liquidity constrained as shown in deaton econometrica 59 5 1991 1221 liquidity constrained consumers might choose to exhaust their borrowing capacity from time to time yet due to technical limitations the conditions under which this behavior arises have not been investigated the present paper extends the class of solvable models in a way that allows this issue to be dealt with it turns out that under the loosest sustainable borrowing constraint the agent might systematically avoid exhausting his borrowing capacity

arbitrage pricing and the stochastic inflation tax in a multisector monetary economy abstract a dynamic general equilibrium multifactor asset pricing model for a monetary economy with capital accumulation and multisector production is constructed equilibrium clower constraints on some investment goods and some consumption goods are imposed an equilibrium apt model is constructed where the covariance between the inflation tax distorted equilibrium investment returns and fundamental forcing processes are important in determining equilibrium risk prices the model is used to address issues concerning the relative importance of real and nominal factors in asset pricing raised in recent papers by chen roll and ross 1986 and cochrane 1991 1992

balanced government budgets versus deficit finance in a growth economy this paper analyses the effects of balanced budgets and deficit finance policies on the resulting steady state capital stock in a simple neoclassical growth model it is shown that the steady state capital stock may be higher or lower if the government is required to balance its budget in each period than if it uses deficit finance depending on the level of the initial capital stock and the curvature of the utility function of the representative agent

recursive equilibria in an aiyagari style economy with permanent income shocks in this paper we prove the existence of a recursive competitive equilibrium rce for an aiyagari style economy with permanent income shocks and perpetual youth structure we show that there exist equilibria where borrowing constraints are never binding this allows us to establish a non trivial lower bound on the equilibrium interest rate to solve the individual s problem we present a new approach that uses lattices of consumption functions to deal with the non compact state space and the unbounded utility function the approach uses only the first order conditions of the problem euler equations the proof is constructive and it serves as a theoretical foundation for the convergence of a policy function iteration procedure

sovereign credit ratings in the european union a model based fiscal analysis abstract we present a model based measure of sovereign credit ratings derived solely from the fiscal position of a country a forecast of its future debt liabilities and its potential to use fiscal policy to repay these we use this measure to calculate credit ratings for 14 european countries over the period 1995 2012 this measure identifies a european sovereign debt crisis almost two years before the official ratings of the credit rating agencies