fiscal shocks and budget balance persistence in the eu countries from central and eastern europe this article analyses the time series properties of the fiscal balance in the 10 eu countries from central and eastern europe the persistence of the fiscal balance is analysed by means of unit root tests that account for possible nonlinearities and structural changes the linear and nonlinear unit root tests find only mild evidence in favour of the stationarity hypothesis with asymmetric effects present in a few cases after controlling for structural changes in the data generation processes dgps the results point to stationarity of the series thus in spite of relatively steady headline figures the budget balance processes in the eu countries from central and eastern europe exhibit substantial instability

assessing long term fiscal developments a new approach abstract we use a new approach to assess long term fiscal developments by analyzing the time varying behaviour of the two components of government spending and revenue responsiveness and persistence a feature not captured by automatic stabilisers we are able to infer about the sources of fiscal deterioration improvement drawing on quarterly data we estimate recursively these components within a system of government revenue and spending equations using a three stage least square method for eight european union countries plus the us the results suggest that significant changes in the fiscal stance including those related to the current crisis are reflected in the estimates of persistence and responsiveness

new evidence on the ricardian equivalence theorem a multicointegration approach this paper derives major theoretical constructs which underlie richardian equivalence and using multicointegration methodology empirically tests whether they bear out results indicate that government spending and revenues are cointegrated however the cointegrating scalar is less than one therefore in order for government to obey its intertemporal budget constraint debt and government revenue must be multicointegrated they are not additional evidence indicates that saving and debt may be weakly cointegrated the findings suggest that failure of richardian equivalence may be due to public rather than private sector failure

investment effects of departures from governmental present value budget balance the paper investigates whether departures from government borrowing constraints affect the relationship between fiscal policy innovations and changes in the investment level break points or apparent departures from present value budget balance are then identified next the investment deficit relationship is examined prior to and following identified break points in an effort to detect potential changes in behaviour the investment deficit relationship is quantified by examining posterior coverage bounds of impulse response functions britain appears to undergo such a break around 1973 data from this country suggest that significantly more crowding out occurred following the identified breaks in contrast data from other comparison countries that do not appear to have experienced breaks indicate stable investment deficit relationships

the sustainability of current account deficits abstract this paper proposes a new method of determining whether a country is likely to be able to sustain its current account deficits without defaulting on its debt it is based on the notion of the national intertemporal budget constraint ibc which is derived from a forward solution of the balance payments identity although the problem is formally similar to that considered in the literature on the government ibc a more general solution is obtained by allowing the primary deficit to be endogenous instead of exogenous it is shown that the existence of negative feedback from net indebtedness to the primary deficit a wealth effect is sufficient this method supplants the ad hoc approach previously adopted in the current account literature whilst many of the same variables appear a formal structure for analysing them is provided

current account deficit sustainability the case of barbados this article investigates the sustainability of the current account deficit in barbados over the period 1960 to 2006 various unit root and cointegration techniques are employed to determine whether the country is satisfying its intertemporal budget constraint ibc the cointegration regressions suggest that the current account of barbados is sustainable and that deviations from long run equilibrium between real exports and imports are corrected in the short run with imports making the adjustment

fiscal reaction under endogenous structural changes in brazil abstract regarding the importance of fiscal policy in smoothing the impact of shocks such as the international financial and economic crises the paper analyzes the sustainability of the brazilian fiscal policy by taking into consideration the possibility of multiple endogenous structural breaks on the coefficients of government reaction function from monthly data in the period 1991 2008 tests on the reliable estimates dictate the occurrence of structural change in may 1994 and another in february 2003 there has been a situation of fiscal solvency in brazil but only from may 1994 the hitherto innocuous actions of government to formulate policies on public debt turn out to be significant as it rose twofold after february 2003 this reinforces the existence of a more flexible alternative to implement strategic policy in brazil if an eventual alternative for increasing public spending is a way of hindering the effects of international financial crises without compromising the fiscal targets

explaining u s federal deficits 1889 1998 i introduction seater 1993 attempted to provide a common basis for assessing empirical studies of the effects of deficit spending he concluded that evidence of the existence of appreciable effects of u s deficits on macroeconomic variables is questionable in other words the data do not allow for a confident rejection of ricardian equivalence in a world with no macroeconomic effects from deficit spending full information and no distinctions between political and economic markets fluctuations in deficits merely reflect government financing considerations of secondary importance in contrast to this view of the world deficits and surpluses are treated as an important topic in everyday affairs and discourse politicians talk about deficits and surpluses regularly when calling for higher or lower taxes more or less spending revisions in social security funding and other changes in public policy economists and political analysts continue to debate why deficits became a regular feature of federal fiscal management from the late 1960s into the 1990s these debates have spurred divergent theories and conjectures leading to different empirical hypotheses and variables of interest moreover existing empirical studies of the subject have utilized diverse econometric techniques and specifications as a result the competing hypotheses concerning deficit spending have not been tested against one another in a systematic fashion in this article our principal aim is to analyze the different explanations of u s federal deficits jointly estimating competing hypotheses about deficit fluctuations in a generalized reduced form empirical model to achieve this goal we collected and utilized a time series of data running from 1889 to 1998 the apparent paradox between the seemingly innocuous effects of deficits and the political preoccupation with them may owe its existence to one or more reasons limited and noisy information among voters differences between economic and political markets inaccuracy in the measured macroeconomic effects of deficits or other reasons we do not attempt an explanation of why deficits which seemingly exhibit no or small real effects ricardian equivalence could lead politicians and voters to treat deficits as if the ricardian hypothesis were rejected instead we treat explanations of deficits that stem from ricardian premises as one of several hypotheses to be tested ii competing hypotheses we first describe the leading explanations of deficit spending organizing them around common theoretical principles 1 tax smoothing the explanation of deficits which follows directly from a ricardian equivalence theory is the tax smoothing theory developed by barro 1979 2 if deficits generate no real macroeconomic effects and the influences of political institutions and politicians are ignored then optimal public financing considerations govern the use of deficit spending simply put fiscal authorities raise revenue to meet spending needs through income taxation but both spending and income the tax base are subject to uncertain and temporary movements minimization of the deadweight costs of raising a given amount of revenue requires keeping tax rates steady in the face of purely temporary changes in income or spending this is accomplished by running deficits when income is temporarily low or spending is temporarily high and running surpluses in the opposite case imposing a binding no ponzi game npg constraint leads to similar long term behavior of deficits as implied by optimal finance models the npg condition requires that the present value of taxes must equal the present value of spending plus the initial value of debt spending and revenue must share a long term common trend so that primary deficits will be stationary over a long time series deficits and surpluses will offset each other

measuring the benefits of greater spatial granularity in short term pricing in wholesale electricity markets hourly generation unit level output levels detailed information on the technological characteristics of generation units and daily delivered natural gas prices to all generation units for the california wholesale electricity market before and after the implementation of locational marginal pricing are used to measure the impact of introducing greater spatial granularity in short term energy pricing the average hourly number of generation unit starts increases but both the total hourly energy consumed and total hourly operating costs for all natural gas fired generation units fall by more than 2 percent after the implementation of locational marginal pricing

bohn s test of fiscal sustainability of the american state governments the dramatic fall in state revenues during the great recession and the resultant large budget deficits accentuated concerns about state fiscal sustainability i employ a model based approach proposed by bohn 1998 to test for sustainability in this approach a positive and significant reaction of the ratio of primary surplus ratio s to lagged debt constitutes a sufficient condition for sustainability based on a panel of 48 contiguous states 1961 2008 and several model specifications i find robust evidence in favor of sustainability further analysis suggests that the adjustment of the components of s to debt is asymmetric with the revenue side bearing a heavier burden than the spending side the response of s is also found to be asymmetric with respect to the level of debt finally the magnitude of the response is larger in states with a higher degree of fiscal stringency in general and own revenue and no deficit carryover provisions in particular

is the budget deficit too large some further evidence i introduction since the early 1980s the u s federal government has run unprecedented peacetime deficits the size of these deficits became a major issue in recent u s presidential elections for example during the 1992 elections ross perot successfully used his simple charts and tables to convey the notion that the size of the deficit was too large economists look at the deficit issue from a different perspective instead of emphasizing the size of the deficit at any particular point in time they are more concerned with the intertemporal solvency condition the present value of debt in the long run this condition focuses on the long run paths of interest inclusive expenditures and revenues unless these two variables trend together over the long run the government will have an incentive to default on the debt losing the confidence of investors from the standpoint of the intertemporal solvency condition are recent deficits too large do they represent boundless growth of government debt as an empirical proposition boundless growth of the debt corresponds to non stationarity of the deficit or the first difference of the debt recent developments in time series econometrics have provided ways to examine the intertemporal solvency condition for example hamilton and flavin 1986 and trehan and walsh 1991 apply stationarity tests to the u s federal deficit similarly hakkio and rush 1991 test for cointegration between interest inclusive expenditures and revenues while bohn 1991 tests for the cointegration of debt non interest expenditures and revenues hakkio and rush s results suggest that the deficit is too large for intertemporal solvency and thus the government has an incentive to default on its debt they conclude that over the period 1950 through 1989 interest inclusive expenditures and revenues are cointegrated but not one to one this suggests that although the present discounted value of the debt tends to zero the undiscounted value of the debt will be unbounded moreover they find that interest inclusive expenditures are not cointegrated with revenues over the period 1964 to 1989 the government debt appears to drift upward without bound overall hakkio and rush s results suggest that the government will have an incentive to default on the debt at some point in the future 1 we look at the issue from a different point of view we believe that a discrete break in the fiscal process occurred in the early 1980s as a result of several policy changes such as the 1981 economic recovery and tax act during the first reagan administration this reagan era change is modeled as a one time upward shift in the constant component of the deficit as mccallum 1984 shows a constant interest inclusive deficit does not imply boundless growth of government debt and should not provide an incentive to inflate away the debt as did previous research we conduct tests for the cointegration of interest inclusive expenditures and revenues as well as stationarity tests on the deficit 2 however we allow a shift in the intercept term of the cointegration and stationarity tests to capture the break in the fiscal process our results show that when the break is included expenditures and revenues are cointegrated with a coefficient not statistically different from unity i e that the deficit is stationary this contradicts the conclusions of hakkio and rush of course the way we choose the break date may be crucial to our analysis our initial choice of break date is based on prior information this is the approach used by perron 1989 who tests the u s gnp with a break chosen using prior information christiano 1992 criticizes perron 1989 on the a priori choice of the break date he suggests that the break date should be chosen using a formal pre test procedure moreover any statistical inference that follows must take this pre test procedure into account

nonlinearities and the sustainability of the government s intertemporal budget constraint i introduction fiscal policy sustainability is an important issue for european union eu countries which are subject to some forms of monitoring of their public finances the european stability and growth pact esgp constrains the fiscal policy of member states by limiting their autonomy in creating excessive deficits 1 this because fiscal disequilibria in one state create negative externalities for the other member countries and in the case of european monetary union emu countries can endanger the overall credibility of the euro currency on the other hand given the common monetary policy the correction of idiosyncratic shocks is assigned to the fiscal instrument alone imposing further pressure on the fiscal policy of member countries while the issue of sustainability of the public finances of the eu emu countries has received an increasing attention less attention has been paid to the issue of how the sustainability is achieved that is how budgetary authorities adjust fiscal policies to achieve maintain a sustainable path of public debt focusing on this adjustment by applying linear and nonlinear error correction models is the main purpose of this paper our empirical analysis is based on italy which provides an interesting case as it joined the emu in 1999 in spite of a stock of public debt of around 113 of nominal gdp against the 60 level required by the maastricht treaty and whose public accounts are often under scrutiny for struggling to comply with the esgp 2 as well as for subsequent downgradings of its sovereign debt by the main credit rating agencies 3 in this paper we address three main relevant policy questions first are the italian public finances sustainable second is the process of fiscal adjustment equally shared by changes in revenues and changes in government spending third does fiscal adjustment vary with the sign and magnitude of disequilibria and or with the state of the economy these are important questions for policy making purposes although our methodology is only applied to italy we feel our work should be of definite interest to other european countries and beyond bearing in mind that italy enjoys membership of the g7 economies and accounts for around 17 of eurozone s gdp a better understanding of how its public finances operate in practice is extremely important for monitoring the fiscal health of eurozone countries and minimizing at an early stage possible threats to eurozone s stability as well as limiting any spill over effects to the rest of the world further loans from the european financial stability facility 4 efsf can only meet the approval of policymakers if they feel confident they have a deep understanding of how individual member states pursue their own fiscal policies toward sustainability verifiability and credibility of sustainable fiscal policies would also condition the availability of the european stability mechanism consisting in a permanent bail out fund for eurozone member states bofinger et al 2010 that is expected to become operational from 2013 at the expiry of the efsf at the same time proposals for independent monitoring of public finances of member states as well as stricter sanctions such as the temporary suspension of voting rights for eurozone members that break the region s rules on public finances are put forward by the european central bank trichet 2010 all these recent policy developments confirm the importance of our research in providing a comprehensive framework for empirically testing the sustainability of fiscal policy our proposed approach provides a number of interesting findings the italian government s intertemporal budget constraint ibc is formally respected in spite of the high levels of public debt nevertheless the burden of correcting budgetary disequilibria is entirely carried out via changes in the average tax rate rather than changes in government spending or policy mixes

the dynamics of municipal fiscal adjustment abstract the dynamic fiscal policy adjustment of local jurisdictions is investigated empirically using a panel of more than 1000 u s municipalities over a quarter of a century distinguishing own source revenue grants expenditures and debt service the analysis is carried out using a vector error correction model which takes account of the intertemporal budget constraint the results indicate that a large part of the adjustment in response to fiscal imbalances takes place by offsetting changes in future expenditures in addition the results show that fiscal imbalances are financed to a significant extent by subsequent changes in grants decomposition of the sample according to average city population reveals that the basic pattern of fiscal adjustment is robust although intergovernmental grants play a much more pronounced role in maintaining budget balance for large cities

the tax smoothing hypothesis evidence from sweden 1952 1999 this paper tests barro s 1979 tax smoothing hypothesis using swedish central government data for the period 1952 1999 according to the tax smoothing hypothesis the government sets the budget surplus equal to expected changes in government expenditure when expenditure is expected to increase the government runs a budget surplus and when expenditure is expected to fall the government runs a budget deficit the empirical evidence suggests that the model provides a useful benchmark and that tax smoothing behavior can explain about 60 percent of the variability in the swedish central government budget surplus

u s states the medicaid program and tax smoothing this paper tests the tax smoothing theory by focusing on its implication that a change in permanent government spending should result in an equal sized change in the tax rate the effect of medicaid a state administered federal and state funded medical insurance program for the poor on state tax rates is investigated the medicaid program provides a natural experiment for this test as states are required to cover certain groups in order to receive federal matching money additionally during the 1980s a series of federal mandates greatly increased state medicaid expenditures two stage least squares is used on a panel of u s states 1978 1994 to test whether changes in permanent state medicaid expenditures resulted in equal sized tax rate changes tax smoothing as a positive theory of state government behavior is rejected additionally it is found that this rejection cannot be attributed to the stringency of balanced budget rules

revealing rival marginal offer prices via inverse optimization we consider a strategic producer that trades its energy in a multi period network constrained electricity pool and for strategic reasons is interested in identifying its rival producers offer prices considering industry practice we assume that the strategic producer has knowledge of the daily market outcomes i e energy quantities sold bought and resulting locational marginal prices lmps for each time period and all nodes of the network using this information we formulate an inverse optimization problem that allows estimating the rival producers offer prices that have been marginal at any of the time periods under study such problem is well behaved effectively identifies rival offer prices and can be efficiently solved the effectiveness of the proposed technique is illustrated through a simple example and a realistic case study

global imbalances and the intertemporal external budget constraint a multicointegration approach abstract this paper analyzes the external solvency of a group of 23 oecd countries for the period 1970 2012 the empirical strategy adopted underlines the increasing importance of the financial channel for the external adjustment as proposed in gourinchas and rey 2007 we unify the traditional approaches to testing for external sustainability considering the stock flow system created by the variables representing the external relationships of an open economy external sustainability is tested using several types of cointegration and multicointegration tests the results obtained point to weak sustainability in the flows analysis whereas some degree of strong sustainability is found for up to six countries in the stock flow approach among these countries we find both non european economies such as japan and new zealand and euro area members especially those with more restricted access to financing in the international markets

the u s evidence on optimal taxation over time abstract this paper considers a tax rule in which a uniform tax rate over time becomes optimal its implications are that 1 changes in the tax rate should arise only when there are changes in permanent government expenditures and 2 no variable other than permanent government expenditures should be of any value in predicting the tax rate these implications are tested using u s data for 1937 82 empirical results of the tests reveal that in addition to responding to permanent government expenditures the tax rate also responds to temporary defense purchases the general price level and a time trend

the sustainability of government deficits implications of the present value borrowing constraint this paper introduces a new methodology for evaluating the sustainability of fiscal policy the new methodology is distinguished from most existing tests in two important respects first it allows for stochastic real interest rates and second it is both necessary and sufficient results from the application of the new test suggest that recent fiscal policy in the united states has not been sustainable the paper contrasts its findings with those of james d hamilton and marjorie a flavin 1986 copyright 1989 by ohio state university press

deficits government expenditures and tax smoothing in the united states 1929 1988 abstract barro s tax smoothing hypothesis tsh implies that the government runs a budget deficit whenever it anticipates the growth rate of national income to increase or the growth rate of its expenditure to decline we test this implication of the hypothesis by examining the implied cross equation restrictions on a vector autoregression var model using u s data for the period ranging from 1929 to 1988 our formal tests reject the hypothesis for the full sample period but cannot reject it for the post 1947 period further investigations show that the statistical rejection should be attributed to sharp differences in the statistical properties of the pre 1947 and the post 1947 data rather than the failure of the hypothesis itself

some stabilizing and destabilizing effects of foreign debt accumulation in developing countries abstract recent research indicates that current account imbalances in the three largest industrial countries germany japan and the united states are self correcting a long run equilibrium relationship exists between the cumulated current account which is the net stock of these countries foreign assets or liabilities and other economic factors the situation appears to be different in a sample of 26 developing countries examined here this paper attempts to explain why it examines the effects on the current account of government and government guaranteed foreign debt on the one hand and net foreign liabilities or the cumulated current account deficit on the other while the cumulated current account deficit does generate stabilizing forces possibly through wealth effects large amounts of government and government guaranteed debt create destabilizing effects by stimulating capital flight

is the budget deficit too large yes specifically we find that recent spending and taxing policies of the government if continued violate the government s intertemporal budget constraint as a result government spending must be reduced and or tax revenues must be increased these conclusions are based on tests of whether government spending and revenue are cointegrated in addition to examining real spending and revenue we also normalize these variables by real gnp and population for a growing economy these normalized measures are perhaps more pertinent we also test and find support for the hypothesis that deficits have become a problem only in recent years

self fulfilling recessions at the zero lower bound abstract we highlight an overlooked source of equilibrium multiplicity in monetary economies subject to a zero bound on nominal interest rates in environments with sufficient endogenous propagation depressed contemporary economic conditions must directly lower expectations of future output and inflation a current recession followed by gradual convergence back to steady state may then be an equilibrium outcome without any exogenous impulse we present this mechanism heuristically in partial equilibrium and in two computed examples of new keynesian economies expansionary fiscal policy makes the recessionary equilibrium more severe at the margin but commitment to a sufficiently large expansion can rule out multiplicity

international intertemporal solvency in industrialized countries evidence and implications recent large current account deficits among industrialized countries have caused concern for policy makers some believe for example that the current buildup of claims on the u s by foreigners violates her solvency condition with respect to the rest of the world recent research 22 suggests that for a country s intertemporal solvency condition to hold the change in the country s obligations to the rest of the world i e her current account deficit must be stationary stationarity tests on current accounts were performed for the u s by trehan and walsh 22 and wickens and uctum 23 for the u s and canada by otto 15 and for twenty three countries by gundlach and sinn 10 these papers present evidence that current accounts are non stationary for several major industrialized countries including the u s the u k canada germany and japan these findings do not favor international intertemporal solvency for this reason the issue merits further investigation in this paper we test for the stationarity of current account deficits of the group of seven industrialized countries preliminary results confirm many of gundlach and sinn s 10 findings however several events during the 1980s might have caused discrete breaks in current account balances events potentially linked with current account breaks include the reduction in world inflation tax reduction and reform in the u s and other industrialized countries attempts at international macroeconomic coordination i e the plaza accord and shifts in the after tax rate of return on capital in many countries as shown in recent research on gross national product 16 2 if such breaks are not accounted for stationarity tests will be biased in favor of accepting the null hypothesis of non stationarity our results suggest strong evidence of discrete breaks in the u s and japan and some evidence favoring breaks in the u k germany and canada the break in the u s current account appears to occur in 1983 while breaks in the other countries appear to occur somewhat later between late 1984 and 1987 more importantly once these breaks are incorporated the evidence is more favorable toward the stationarity of current accounts in these countries these findings thus support intertemporal solvency for these countries

how to evaluate the solvency of an indebted nation reassessing third world debt daniel cohen the conventional measures of the solvency of developing countries usually rely on such indices as debt export or debt gnp ratios the underlying rationale is that to be solvent a country must eventually pay back all its debt this paper starts from two simple but important remarks first solvency need not require the full eventual repayment of all debt continued borrowing may be possible rather what is required is that a country s debt accumulation does not outstrip its capacity to make future repayments and the capacity of lenders to make future loans second solvency therefore cannot be defined independently of the growth rates of lender and borrower countries nor of the interest rate at which past debts accumulate putting these ideas together a new solvency index is proposed and this is computed for all the less developed countries this new index suggests a less gloomy view of the international debt crisis the largest debtors may have already accomplished an adjustment which is more than sufficient to restore their solvency when this is properly computed to investigate this claim there is a detailed analysis of the policies recently adopted in argentina and brazil

fiscal deficit sustainability of the spanish regions carrion i silvestre j l fiscal deficit sustainability of the spanish regions regional studies the fiscal deficit of the spanish autonomous communities is investigated using non stationary panel data analysis the paper considers the two main approaches in the literature first assessing whether there is a long run relationship between the revenues and expenditures of the autonomous communities and second focusing on the use of fiscal rules the paper shows that it is possible to relate these approaches in a unified framework

international evidence of tax smoothing in a panel of industrial countries a panel of industrial countries is examined for evidence of tax smoothing tax smoothing results when governments minimize tax distortions over time the model provides a positive theory of government debt and is due primarily to barro unit root tests are performed in panel data to test the null hypothesis of nonstationary tax rates panel regressions are then undertaken to test the null hypothesis that tax rate changes are unpredictable and test for evidence of an alternative hypothesis political and economic variables are examined for their ability to predict tax rate changes overall the results cannot reject the null hypotheses and support tax smoothing by national governments

government budget deficits and trade deficits are present value constraints satisfied in long term data abstract we test whether long term data from the u s and u k are consistent with the intertemporal government budget constraint and external borrowing constraint both individually and simultaneously a very strong test is provided by our focus on whether the present value constraints pvcs continue to hold despite unusual events such as wars that cause a structural break in the short run dynamic behavior of the variables we find that the pvcs hold over the whole sample period the data also indicate that the pvcs continue to hold following events that cause a structural break in the short run dynamics

firm based measurements of market power in transmission constrained electricity markets in this paper two different approaches to analyzing firm based market power considering transmission constraints are proposed one is an application of the transmission constrained residual demand jacobian while the other is a generalization of the residual supply index to the case of transmission constraints these two approaches provide complementary evaluations of market power medium and large scale system examples are provided to demonstrate computational efficiency and both approaches could be applied to real world electricity markets

estimating a fiscal reaction function the case of debt sustainability in brazil this article reviews recent trends in fiscal performance in brazil estimates fiscal reaction functions for the consolidated public sector and different levels of government and tests for the sustainability of the public debt dynamics the empirical analysis based on monthly data for the period 1995 2004 suggests that all levels of government react strongly to changes in indebtedness by adjusting their primary budget surplus targets in addition the central government appears to follow a spend and tax policy changes in revenue are affected strongly by expenditure about two thirds of changes in primary spending are offset by higher revenue over the longer term institutions are also found to matter for fiscal sustainability the responsiveness of the sub national fiscal stance to indebtedness as well as that of central government revenue to changes in primary spending appears to have become stronger after 1998 when ceilings on indebtedness were introduced

assessing the mean reversion behaviour of fiscal policy the perspective of asian countries this article investigates fiscal policy sustainability in 10 asian countries by adopting a battery of unit root tests univariate unit root tests reveal that the fiscal stance in these countries follows a nonstationary process while the opposite conclusion was drawn for the same dataset using the commonly employed panel unit root techniques by utilizing the series specific panel unit root test recently developed by breuer et al 2002 suradf seemingly unrelated regression augmented dickey fuller that allows testing for the presence of nonstationarity within individual cross sections of the panel we found that only cross sections four out of 10 countries in the panel are stationary this means that fiscal deficits in most asian countries are in violation of their intertemporal budget constraint and that the deficits are too large

fiscal transfers and fiscal sustainability we examine whether the u s and german state governments pursue sustainable fiscal policies taking into account fiscal transfers using panel data techniques we investigate whether the debt to gdp ratio had a positive influence on the primary surplus bohn model we show that including excluding fiscal transfers changes the results if fiscal transfers are not included in the primary surplus the test results do not indicate that the u s and german state governments pursued sustainable fiscal policies our results also suggest that fiscal transfers were positively related to debt these findings indicate that intergovernmental transfers have implicitly subsidized debts

on the solvency of nations cross country evidence on the dynamics of external adjustment we test the hypothesis that net foreign asset positions are consistent with external solvency and examine the dynamics of external adjustment using data for 50 countries over the 1970 2006 period our analysis adapts bohn s 2007 error correction reaction function approach which tests for a negative long run relationship between net exports nx and net foreign assets nfa as a sufficiency condition for the intertemporal budget constraint to hold to a dynamic panel framework pooled mean group pmg and mean group error correction estimation yield evidence of a statistically significant negative response of nx to nfa moreover we cannot reject the hypothesis that the response is largely homogeneous across countries our sensitivity analysis shows that the countries with relatively weaker fundamentals need to respond more strongly to the changes in nfa to keep their nfas on a sustainable path

threshold effects in the u s budget deficit i introduction there has been an ongoing debate on whether the u s fiscal policy is sustainable in the long run in addressing this issue a number of studies have examined whether the u s public finances are compatible with the government s intertemporal solvency constraint hamilton and flavin 1986 trehan and walsh 1988 hakkio and rush 1991 among others the requirement of budget processes to be sustainable implies effectively that ponzi games are ruled out as a viable option of government finance in other words further new borrowing cannot be used indefinitely as a method of financing interest payments on existing debt therefore the solvency constraint requires that any changes in taxes and government spending are followed by adjustment in future taxation and or spending that equals to the original change in present value this solvency constraint imposes testable restrictions on the time series properties of key fiscal aggregates in this article we present new evidence on this ongoing solvency debate utilizing an empirical framework that allows us to test whether there have been threshold effects in the u s deficit unlike existing empirical studies that focus only on the identification of regime shifts in u s fiscal policy we also offer an explanation and provide evidence as to why these regime shifts might occur specifically we argue that for fiscal authorities to be able to meet the solvency constraint they would intervene through deficit cuts only when the government budget deficit becomes very large therefore we expect a mean reverting dynamic behavior for deficits only when they are above some threshold value we test for this hypothesis using the threshold unit root empirical methodology recently developed by caner and hansen 2001 the article is organized as follows section ii reviews the empirical evidence section iii describes the empirical methodology and section iv presents the empirical results which are analyzed and interpreted section v summarizes and concludes ii intertemporal solvency condition empirical underpinnings one strand of the empirical literature focuses on the stationarity of the stock of public debt uctum and wickens 1997 deal with stochastic interest rates and primary surpluses that are allowed to be either exogenous or endogenous to the stock of public debt they show that a necessary and sufficient condition for the intertemporal solvency condition to hold is a stationary discounted stock of public debt another strand of the empirical literature has concentrated on the dynamics of the undiscounted inclusive of interest deficit or alternatively on the long run relationship between government spending and tax revenues trehan and walsh 1988 show that government spending inclusive of interest payments and government revenues should be cointegrated with a cointegrating vector equal to 1 1 they present evidence that supports this restriction hakkio and rush 1991 point out that a necessary condition for intertemporal solvency is the existence of cointegration between government expenditure inclusive of interest payments and government revenues with a cointegrating vector equal to 1 beta and 0 quintos 1995 expands on hakkio and rush 1991 and shows that cointegration is not necessary for the intertemporal balance condition to hold specifically she distinguishes between a weak and a strong sustainability condition the former implies that the government solvency holds but the undiscounted debt process is exploding at a rate that is less than the growth rate of the economy although this case is consistent with deficit sustainability it is inconsistent with the ability of the government to market its debt in the long run especially if the focus is on the debt to gross national product gnp or on the debt per capita see also hakkio and rush 1991 in contrast strong sustainability implies that the undiscounted public debt is finite in the long run

sustainability of current account deficits in india an intertemporal perspective this study examines the sustainability of current account deficits cads and the validity of intertemporal budget constraint ibc in india the long run model is estimated on annual data for the period 1950 1951 to 2009 2010 the optimal single equation and maximum likelihood ml system estimates of the model provide a consistent support for the long run relationship between imports and exports the olsgh estimates provide no support and that ml system estimates a consistent support for cointegration in both the models estimated with one and two structural breaks in level the new cointegration breakdown tests generally suggest that the cointegration prevails from 1951 to 2010 the evidence supporting the cointegration between imports and exports overwhelms the evidence providing a mixed or no support for cointegration the estimates of slope parameter above zero and the dominant support for cointegration between imports and exports vindicate the validity of ibc and the sustainability of cads the shor

assessing ricardian equivalence this paper reviews the literature on ricardian equivalence this hypothesis may be interpreted as a generalisation to the short and the long run of the theories which put no weight on the real effects of public policies on aggregate demand we argue that ricardian equivalence relies on both permanent income hypothesis and the fulfilment of the intertemporal government budget constraint the theoretical literature emphasises several reasons for departures from this hypothesis however the empirical literature is inconclusive when ricardian equivalence is tested in a life cycle framework the hypothesis is usually rejected while when the empirical analysis is based on optimising models it is usually accepted

on the limitations of government borrowing a framework for empiricaltesting this paper seeks to distinguish empirically between two views on the limitations of government borrowing according to one view nothing precludes the government from running a permanent budget deficit paying interest due on the growing debt load simply by issuing new debt an alternative perspective holds that creditors would be unwilling to purchase government debt unless the government made a credible commitment to balance its budget in present value terms we show that distinguishing between these possibilities is mathematically equivalent to testing whether a continuing currency inflation might be fueled by speculation alone or is instead driven solely by economic fundamentals empirical tests which have been developed for this economic question lead us to conclude that postwar u s deficits are largely consistent with the proposition that the government budget must be balanced in present value terms this abstract was borrowed from another version of this item

us deficit sustainability revisited a multiple structural change approach in this article we re examine the long run sustainability of us budget deficits using bai and perron s multiple structural change approach while the deficit would have been weakly sustainable over the full sample 1947 1 2005 3 strong sustainability would appear only between january 1982 and february 1996

are state and provincial governments tax smoothing evidence from panel data the theory of debt examined here is known variously as efficient taxation over time optimal taxation over time the equilibrium approach to fiscal policy or tax smoothing tax smoothing results when an efficient government fixes tax rates today to minimize the costs of taxation over time given the long run constraint of a balanced budget if the marginal costs of taxation are an increasing function of the amount of resources taxed i e the tax rate then minimization of the total costs of taxation implies that the planned tax rate will be constant over time tax rate changes will be unpredictable and the tax rate will behave as a random walk efficient governments will not adjust tax rates to accommodate temporary changes in expenditures and revenues instead governments will minimize tax rate changes by tax smoothing smoothing tax rates implies that temporary changes in government spending and output result in deficits and surpluses therefore tax smoothing provides a theory of government debt the model is primarily due to barro 1 the goal of this paper is to contribute to our understanding of government debt the focus of this paper is on state and provincial debt or what is generally referred to as state and local debt nearly every state government in the united states has a balanced budget rule however balanced budget rules are not sufficient to rule out tax smoothing as state governments could build up budget surpluses in good times to smooth budgets over the business cycle if state governments are smoothing tax rates then their budget surpluses are endogenous contrary to the state governments provincial governments in canada have no balanced budget rules if provincial governments are smoothing tax rates it could explain the behavior of their budget deficits and surpluses as shown by barro tax smoothing implies that the overall tax rate behaves as a random walk and the tax rate would be a nonstationary time series with a unit root this study examines the tax smoothing hypothesis in two ways first the random walk implication is examined directly by testing the null hypothesis that the tax rate time series has a unit root second if the tax rate behaves as a random walk then changes in the tax rate should be unpredictable from past information if past information can predict tax rate changes this would provide evidence in favor of an alternative hypothesis a rejection of tax smoothing suggests that state and provincial tax rates respond to current

speed limit policies the output gap and optimal monetary policy in a standard new keynesian model a myopic central bank concerned with stabilizing inflation and changes in the output gap will implement a policy under discretion that replicates the optimal timeless perspective precommitment policy by stabilizing output gap changes the central bank imparts inertia into output and inflation that is absent under pure discretion even a fully optimizing i e non myopic central bank operating in a discretionary policy environment achieves better social outcomes if it focuses on inflation and changes in the output gap than are achieved under inflation targeting this abstract was borrowed from another version of this item

inflation determination with taylor rules is new keynesian analysis critically flawed abstract cochrane 2007 has strongly questioned the basic economic logic of current monetary policy analysis arguing that new keynesian nk models imply rational expectations paths with explosive inflation that do not imply explosions in real variables relevant for transversality conditions consequently the usual logic does not rule out solutions with explosive inflation that result does not however justify negative conclusions about nk analysis for a different criterion is logically satisfactory it is that to be plausible a re solution must satisfy the property of least squares learnability adoption of this criterion serves to justify in principle the bulk of current mainstream analysis

a century of current account dynamics abstract recent globalization trends have refocused attention on the historical evolution of international capital mobility over the long run the issue is examined here using time series analysis of current account dynamics for fifteen countries since circa 1850 the inter war period emerges as an era of low capital mobility and only recently can we observe a tentative return to the degree of capital mobility witnessed during the late nineteenth century the analysis of saving and investment dynamics also helps make sense of the frequently observed high correlation of saving and investment rates in historical data

assessing the fiscal stance in the european union and the united states 1970 2011 the huge increases in debt gdp ratios following the 2007 2009 global financial crisis which are unprecedented except in times of war has focused attention on the viability of the fiscal positions of eu countries and the us how to assess this and the likely future evolution of these positions this paper proposes an indicator of the fiscal stance which computes the fiscal adjustment required to reach a specific debt gdp targeted given the forecasts of future deficit and interest rates obtained from an unrestricted recursively estimated var model the index is easy to compute and can be decomposed to disclose the different contribution of revenue expenditure nominal yields inflation and growth to the fiscal stance for this reason it provides a transparent and detailed measure of the fiscal stance particularly suitable for multi country surveillance as a result the index improves on the tax gap indicators widely used by governments and international agencies and is far more informative than formal econometric tests of fiscal sustainability the time series of the indicator for individual eu countries and the us show that their fiscal position has fluctuated considerably over the last 40 years and has particularly deteriorated since 2007 the index predicts that the adjustment required to restore pre crisis debt gdp levels are higher for high debt countries like greece italy and portugal they become more severe the shorter is the time horizon for the adjustment as a large degree of uncertainty surrounds the assessment of the fiscal stance in the medium and long run we argue that policy makers should inform their policy based on the worst case scenario predicted by the indicator

seigniorage and tax smoothing in the united states 1914 1986 abstract when monetary and fiscal authorities cooperate to minimize the distortionary costs of financing an exogenous stream of government expenditures barro s tax smoothing model implies a long run relationship between tax revenues and inflation previous empirical tests of this relationship are reinterpreted in light of recent work on cointegration and are shown to hold only when stochastic temporal variation in the excess burden of taxes and seigniorage is transitory in nature a new test that holds in the presence of nonstationary disturbances is developed and applied annual u s data from the period 1914 to 1986 reject the revenue smoothing hypothesis

determining optimal monetary speed limits abstract the proposal by walsh 2003 that policy should include a speed limit by having the change in the output gap as an additional term in a taylor type rule is shown to be exactly optimal given an appropriate parameterization

has federal budget deficit policy changed in recent years this paper applies new tests for parameter instability in cointegrated regression models to the u s federal government s intertemporal budget constraint in order to detect whether there has been a regime change in spending and taxing policies some researchers have argued that fiscal policy under presidents reagan and bush moved the u s deficit onto an unsustainable path my results suggest that government deficit policy in the 1980s was not significantly different from policies during the three earlier decades however a diverging debt gnp ratio suggests that the government will run into problems marketing its debt if current policy continues

an investigation of ricardian equivalence in a common trends model abstract to empirically discriminate between ricardian and non ricardian behaviour we have to use a method that distinguishes between expected and unexpected as well as permanent and transitory changes in taxes and government consumption one method that provides these distinctions between different types of changes is the common trends framework used in this paper which is a var model with cointegrating constraints in the empirical study of us data there is some support for the ricardian hypothesis but there are also some deviations from its predictions however the differences do not lend support to a keynesian view of budget deficits but rather to the view of expansionary fiscal contractions this can be motivated theoretically by uncertainty about future taxes in combination with prudent households

interpretation and limits of sustainability tests in public finance public debt is considered sustainable if discounted net repayments are expected to cover the initial debt issuance i e if the government s inter temporal budget constraint is expected to hold with risk averse lenders and an uncertain economic environment bohn 1995 stresses that this constraint relies on a stochastic discount factor which depends on lenders preferences to get round the difficulty related to the specification of private agents preferences in empirical analysis bohn 1998 suggests to estimate fiscal reaction functions describing how primary surplus reacts to indebtedness after having solved the econometric issues arising when primary surplus and debt have a very different persistence with a nonparametric approach or are both integrated with parametric tests we estimate fiscal reaction functions for france and greece there remain important limitations and interpretation difficulties that are common to all econometric sustainability tests

tax and spend spend and tax or fiscal synchronization new evidence for ten countries cointegration and vector autoregression are used to test the tax and spend spend and tax and fiscal synchronization for ten countries using annual time series data over the period 1951 to 1996 three of them are part of the newly industrialized countries of asia south korea taiwan and thailand and seven are industrialized countries australia canada japan new zealand south africa uk and the usa this paper includes gdp as a control variable into the model like baghestani and mcnown 1994 ross and payne 1998 and koren and stiassny 1998 the johansen 1988 and johansen and juselius 1990 cointegration test results indicate that these three variables are cointegrated with two cointegrating vectors for south korea one vector for australia canada south africa taiwan uk and the usa and no vector for japan new zealand and thailand the results from granger causality tests suggest unidirectional causality running from revenues to spending supporting the tax and spend hypoth

are southern poor countries governments more profligate than their northern rich counterparts fiscal criteria and impulse responses this study examines the health of public finances in different geographical regions by emphasising the discrepancies in north versus south and rich versus poor countries the last decade s debt and deficit figures depicting a general fiscal consolidation across regions and income levels show signs of worsening when the fiscal criteria are adjusted for cyclical factors fiscal pressure appears in most countries since the end of the 1990s but has been more persistent in poor countries and in asia the dynamics of governments reaction to debt accumulation reveals however that most regions exhibit consistent anti debt policies to various degrees the exception is the latin american and caribbean region where results suggest a lack of debt fighting policies among income categories rich countries generate the highest primary surpluses when confronted with debt accumulation

foreign debt accumulation financial and fiscal effects and monetary policy reactions in developing countries abstract this paper analyzes the effects of the current account of government and government guaranteed foreign debt on the one hand and net foreign liabilities or the cumulated current account deficit on the other hand in a sample of 26 developing countries while the cumulated current account deficit generates stabilizing forces pissibly through financial and wealth effects large amounts of government and government guaranteed debt produce destabilizing effects by stimulating capital flight i also find that monetary policy reactions are stabilizing in the case of the cumulated current account deficit but desstabilizing in the case of a build up of government and government guaranteed foreign debt jel f32 f34

public debt the unit root hypothesis and structural breaks a multi country analysis we assess fiscal performances in g7 and selected latin american and asian countries we consider two questions i have public finances been sustainable ii do countries follow more restrictive fiscal policies when debt starts to rise we find that i the traditional unit root tests often overlook the corrective actions taken by many governments controlling for structural breaks changes the non stationarity results dramatically among the three groups ii estimation of a reaction function for governments expanded by incorporating structural breaks provides further evidence for significant active anti debt policies among g7 countries and to a lesser extent in the other regions

the sustainability of india s current account this study conducts an investigation into the sustainability of the indian current account using data for 1950 onwards a necessary condition for current account sustainability is that exports and imports are cointegrated after testing for unit roots that allow for a structural break we employ parametric tests for cointegration based on johansen 1995 and saikkonen and lutkepohl 2000a b c as well as the nonparametric procedure proposed by breitung 2002 and breitung and taylor 2003 that does not assume linearity by employing these procedures recursively two distinct regimes are identified characterized by whether or not imports and exports are cointegrated the regime of noncointegration runs until the late 1990s and the second regime of cointegration is present after that this latter regime coincides with the liberalization of the indian economy

sustainability of external imbalances in the oecd countries the authors wish to thank three anonymous referees for helpful comments to a previous version financial support from the spanish institute for fiscal studies the spanish ministry of economy and competitiveness projects eco2011 29314 c02 02 o bajo rubio and c diaz roldan and eco2011 30260 c03 01 v esteve and the department of education and science of the regional government of castilla la mancha project peii09 0072 7392 is also gratefully acknowledged v esteve also acknowledges support from the generalitat valenciana project gvprometeo2009 098

a model based indicator of the fiscal stance we argue that the conventional approach to assessing the fiscal stance based on econometric tests of the government present value budget constraint pvbc is of limited practical use we propose an alternative measure that focuses on short run fluctuations in the fiscal stance namely a model based indicator that compares a target level of the debt gdp ratio at a given point in the future with a forecast based on the government budget constraint gbc where the forecasts are obtained using a recursively estimated var by log linearising the gbc the index can be decomposed into the various different components of which it is comprised using data from 1970 to 2011 we conduct a detailed time series study of the fiscal stances of four countries the united states the united kingdom germany and greece and we calculate the index for 11 other eu countries for most countries the index shows that their fiscal stances vary from being too loose to too tight almost without exception the index drops sharply from 2007 showing the harmful effect on their fiscal stances of the recent recession

common trends the government s budget constraint and revenue smoothing abstract the requirement that the government s budget be balanced in present value terms is shown to be equivalent to the condition that government expenditures inclusive of interest tax receipts and seignorage be cointegrated the condition is in fact stronger requiring that the deficit inclusive of interest be stationary stationarity of the net of interest deficit is neither necessary nor sufficient for intertemporal budget balance however it does have implications for barro s tax smoothing hypothesis data for the period 1890 1986 are consistent with intertemporal budget balance but not with tax smoothing

bubble finance and debt sustainability a test of the government s intertemporal budget constraint this paper tests whether the government s budget is intertemporally balanced in a number of ec countries by applying a method first developed to detect speculative bubbles in financial markets the test aims to establish whether the government can engage in buble finance and is based on a comparison between two sets of estimates the first is obtained directly by regressing the stock of outstanding debt on a distributed lag of the primary surplus the second is obtained indirectly from a pair of equations one relating the current debt stock to next period s primary surplus and debt stock the other specifying an ar process for the primary surplus in the presence of a bubble only the first set of estimates is inconsistent and hence the two sets differ it is found that the null of no bubble can be rejected in the cases of italy germany denmark and greece implying that the government is not intertemporally solvent in these countries the other ec member states appear to be on a sustainable path

the role of intergovernmental aid in defining fiscal sustainability at the sub national level the concept of fiscal sustainability has become increasingly used over the last 20 years however much of the literature on fiscal sustainability at the sub national level ignores the role of intergovernmental fiscal relations to address this gap this paper discusses a sufficient condition for sub national fiscal sustainability and examines the importance of intergovernmental aid in determining that sustainability using panel data of counties and municipalities in the us and using unit root and cointegration analytic techniques this paper finds different levels of fiscal sustainability between counties and municipalities we also find that intergovernmental aid plays an important role for fiscal sustainability for both counties and municipalities

determinacy and identification with taylor rules the new keynesian taylor rule theory of inflation determination relies on explosive dynamics by raising interest rates in response to inflation the fed induces ever larger inflation unless inflation jumps to one particular value on each date however economics does not rule out explosive inflation so inflation remains indeterminate attempts to fix this problem assume that the government will choose to blow up the economy if alternative equilibria emerge by following policies we usually consider impossible the taylor rule is not identified without unrealistic assumptions thus taylor rule regressions do not show that the fed moved from passive to active policy in 1980

current account sustainability in the us what did we really know about it abstract we analyze the sustainability of the us current account ca deficit by means of unit root tests first we argue that there are several reasons to believe that the ca may follow a non linear mean reversion behavior under the null of stationarity using a non linear estar model we can reject the null of non stationarity favoring the sustainability hypothesis second we ask whether unit root tests are a useful indicator of sustainability by comparing in sample results for the 1960 2004 period to the developments observed up to the end of 2008 we find that the non linear model outperforms the linear and random walk models in terms of forecast performance the large shocks to the ca observed in the last five years induced a faster speed of mean reversion ensuring the necessary adjustment to meet the inter temporal budget constraint

intertemporal budget constraint and public debt sustainability the case of italy the theory of intertemporal budget constraint is applied to test italian public debt sustainability with the finding that current fiscal policy has not been following a sustainable path in the 1980s in particular we find that i while primary surplus is stationary public debt is not ii permanent shocks explain about 90 of forecast error variance of public debt while playing a minor role in primary surplus and iii debt is not sustainable even if stochastic discount rates are accounted for

fiscal policy and the current account deficits and trade jose vinals does the balance of payments act as an external constraint on the design of domestic economic policy in practice most governments believe it does yet popular discussion is sometimes confused this paper begins by evaluating the nature of the external constraint and the extent to which it can adequately be measured by the current account of the balance of payments it is often argued that a fiscal expansion will increase employment it is also widely held that a fiscal expansion necessarily leads to a deterioration of the current account while these propositions may hold in specific circumstances neither is generally true the theoretical basis of the two propositions is examined and compared with recent international experience when important changes in fiscal stance occurred the popular presumptions are confirmed by recent experience in the us the uk and germany but france is a counterexample to the first and spain to the second the important policy implication is that one can identify both in theory and in practice clear circumstances in which expansionary fiscal policy is appropriate and will not be thwarted by external considerations

are bond financed deficits inflationary a ricardian analysis this paper considers the possible theoretical validity of the following monetarist hypothesis that a constant positive government budget deficit can be maintained permanently and without inflation if it is financed by the issue of bonds rather than money the question is studied in a discrete time perfect foresight version of the competitive equilibrium model of sidrauski modified by the inclusion of government bonds as a third asset it is shown that the monetarist hypothesis is invalid if the deficit is defined exclusive of interest payments but that it is valid under the conventional definition it is also shown that the stock of bonds can grow indefinitely at a rate in excess of the rate of output growth provided that the difference is less than the rate of time preference these formal conclusions do not take account of possible limitations on taxing capacity arising from default incentives that tend to grow with the stock of bonds

budget balance through revenue or spending adjustments abstract the paper provides a historical perspective on the issue of whether budget deficits are typically eliminated by increased taxes or by reduced spending by examining u s budget data from 1792 1988 i conclude that about 50 65 of all deficits due to tax cuts and about 65 70 of all deficits due to higher government spending have been eliminated by subsequent spending cuts while the remainder was eliminated by subsequent tax increases in contrast to previous studies the empirical analysis uses error correction models in a way that the intertemporal budget constraint is imposed in the estimation stage

is the greek budget deficit sustainable after all empirical evidence accounting for regime shifts this article re examines the sustainability of the greek budget deficit by using a formal framework based on the government s intertemporal budget constraint the empirical analysis uses annual data from 1960 to 2011 and employs traditional as well as more recent unit root and cointegration techniques that account for linear and nonlinear effects in fiscal policy actions unlike previous studies the evidence suggests that allowing for structural breaks the greek budget deficit is unsustainable the parameter after the second detected break reflects the structural deficiencies of the greek economy

business cycles in international historical perspective business cycle models seek to answer the question of why economies go through cycles of recession and recovery or boom and bust any theory of the business cycle makes two sorts of claims what shocks are most important in disturbing the economy and what economic structure is necessary for propagating these shocks for example one common explanation of business cycles begins with monetary shocks and then seeks to explain why monetary shocks are not purely neutral as neoclassical theory would have it and instead have real effects at least in the short term early models in this vein were often implicitly or explicitly based on the proposition that markets do not clear continuously early equilibrium real business cycle theories instead emphasized the importance of real shocks especially to technology which may cause socially efficient fluctuations even when markets are always in equilibrium more recent models have attempted to marry the equilibrium approach to macroeconomics with the substantive keynesian ideas that money is not neutral and that economic fluctuations are costly new keynesian theories of the business cycle admit the possibility of a number of economic shocks including monetary and technology shocks but then focus on explaining how nominal price rigidities within the economy can turn these shocks into recessions or booms other models show that business cycles driven by keynesian animal spirits are consistent with rigorous microfoundations and rational expectations seeking empirical evidence for and against these various approaches we turn business cycle theories loose on perhaps the greatest macroeconomic laboratory

dc power flow revisited linear mw only ldquodcrdquo network power flow models are in widespread and even increasing use particularly in congestion constrained market applications many versions of these approximate models are possible when their mw flows are reasonably correct and this is by no means assured they can often offer compelling advantages given their considerable importance in today s electric power industry dc models merit closer scrutiny this paper attempts such a re examination

optimal simple and implementable monetary and fiscal rules welfare maximizing monetary and fiscal policy rules are studied in a model with sticky prices money and distortionary taxation the ramsey optimal policy is used as a point of comparison the main findings are the size of the inflation coefficient in the interest rate rule plays a minor role for welfare it matters only insofar as it affects the determinacy of equilibrium optimal monetary policy features a muted response to output interest rate rules that feature a positive response to output can lead to significant welfare losses the welfare gains from interest rate smoothing are negligible optimal fiscal policy is passive the optimal monetary and fiscal rule combination attains virtually the same level of welfare as the ramsey optimal policy

excessive deficits sense and nonsense in the treaty of maastricht maastricht s fiscal rules willem buiter giancarlo corsetti and nouriel roubini the maastricht treaty on economic and monetary union in the ec has specified limits on both government debt and fiscal deficits satisfying these criteria is necessary for getting into emu once inside violating these limits will also incur penalties the fiscal requirements especially the debt criterion are much tougher than is required to ensure public sector solvency trying to attain these targets will force the ec initially into substantial deflation and recession failure to correct for real growth inflation and the business cycle makes the nominal deficit a poor basis for any policy or target ambiguity about how fiscal targets will in fact be interpreted might provide a way out but cannot today be relied upon to do so supranational fiscal rules are sometimes claimed to be justified by externalities in national fiscal policies we find this justification wanting both in theory and empirically a better case might be built on the imposition of external commitments to offset domestic political distortions that systematically induce excessive deficits even so we conclude that the fiscal convergence criteria on balance are harmful and should be disregarded or applied very loosely to avoid the risk of serious fiscal overkill

us deficit sustainability a new approach based on multiple endogenous breaks recent empirical work has questioned the consistency of us fiscal policy with an intertemporal budget constraint empirical results have tended to indicate that the deficit process has undergone at least one structural shift during recent decades with the deficit becoming either unsustainable or sustainable in only a weak sense in the post shift period in this paper we re examine sustainability using a new approach based on a cointegration model with multiple endogenous breaks a bayesian methodology is applied incorporating markov chain monte carlo simulators in contrast to previous analyses we find evidence of a sustainable deficit process over the 1947 1992 period despite the occurrence of breaks during the 1970s and 1980s copyright 2000 john wiley sons ltd

public debt in brazil sustentability and its implications abstract this paper tests sustainability of brazilian public debt in the period 1991 to 2009 and analyzes implications of requiring that the brazilian fiscal policy be primarily committed to the sustainability of the public debt the retrospective analysis utilizes a set of unit root tests and avoids some of the criticism leveled at previous studies by using data which has not previously been used for this purpose and concludes that the public debt was sustainable in the period we consider the prospective analysis is based on the dsge model proposed by jodi gali et al 2007 calibrated for brazil using the conclusions of the retrospective analysis for the fiscal parameters the scenarios produced with the help of the model show that maintaining the sustainability of the public debt is consistent with the monetary policy of inflation targeting we also conclude that it is possible to reduce interest rates to levels below those prevalent at the end of 2010 simultaneously maintaining the stability of the trajectory of the public debt

are stationarity and cointegration restrictions really necessary for the intertemporal budget constraint abstract time series related to fiscal and external deficits are commonly subjected to stationarity and cointegration tests to assess if the deficits are sustainable such tests are incapable of rejecting sustainability the intertemporal budget constraint proves to be satisfied if either the debt series or the revenue and with interest spending series are integrated of arbitrarily high order i e stationary after differencing arbitrarily often revenues and spending do not have to be cointegrated rejections of low order difference stationarity and of cointegration are thus consistent with the intertemporal budget constraint error correction type policy reaction functions are suggested as more promising for understanding deficit problems

do revenues or expenditures respond to budgetary disequilibria the post world war ii increase in the size of the federal government has led to a number of theoretical and empirical investigations of the sources of this growth in particular economists have questioned whether increases in the size of the federal budget tend to be initiated by changes in expenditures followed by revenue adjustments by the reverse sequence or both friedman for example argues that governments adjust expenditures to the level of revenues so that control of taxation is essential to limit growth in government 13 alternatively the spend and tax model posits that revenues will be adjusted to finance any politically chosen level of expenditures a third perspective reflecting the institutional separation of allocation and taxation functions of the federal government hypothesizes the independent determination of revenues and expenditures the goal of this investigation is to test these three alternative theories of the budgetary process for the united states

inverse optimization for the recovery of market structure from market outcomes an application to the miso electricity market we propose an inverse optimization based methodology to determine market structure from commodity and transportation prices the methods are appropriate for locational marginal price based electricity markets where prices are shadow prices in the centralized optimization used to clear the market we apply the inverse optimization methodology to outcome data from the midcontinent iso electricity market miso and under noise free assumptions recover parameters of transmission and related constraints that are not revealed to market participants but explain the price variation we demonstrate and evaluate analytical uses of the recovered structure including reconstruction of the pricing mechanism and investigations of locational market power through the transmission constrained residual demand derivative prices generated from the reconstructed mechanism are highly correlated to actual miso prices under a wide variety of market conditions in a case study the residual demand derivative is shown to be corr

fiscal policy rules and the sustainability of public debt in europe the sustainability of public debt is interpreted as the result of the interaction of fiscal policy with the economic environment and not as a statistical concept as in most of the recent literature if debt is not to explode over time policymakers have to respond to the changing conditions in the macroeconomic environment this article defines the conditions that will ensure compliance of fiscal policy with the intertemporal budget constraint in the context of europe s fiscal policy rules the empirical part of the article reveals that european public debt is sustainable in this respect but questions regarding long run liquidity requirements remain unresolved

u s federal indebtedness and the conduct of fiscal policy abstract this paper examines whether the conduct of u s fiscal policy since the 1920s has been influenced by constraints on the accumulated stock of outstanding federal debt the evidence is affirmative during most of the inter and post war period policy in effect stabilized the federal debt relative to gnp but after 1981 large debt and debt service costs failed to produce deficit reductions consistent with the pattern of previous decades

public debt sustainability and endogenous seigniorage in brazil time series evidence from 1947 1992 abstract in this paper we investigate three central issues in public finance first was the path of public debt sustainable during 1947 1992 second how has the government balanced the budget after shocks to either revenues or expenditures were observed third are expenditures exogenous the results show that i debt is sustainable in econometric tests with the budget being balanced almost entirely through changes in taxes regardless of the cause of the initial imbalance expenditures are weakly exogenous ii the behavior of a rational brazilian consumer may be consistent with ricardian equivalence iii seigniorage revenues are critical in restoring intertemporal budget equilibrium

red signals current account deficits and sustainability abstract this paper proposes a method to asses the potential problems of sustainability of a country s sovereign debt we claim that the relevant variables used for this analysis are typically subject to changes that are associated with changes in macroeconomics policies we propose a procedure for identifying periods under which the current account accumulates at a non stationary rate our approach is based on imposing identifying restrictions on markov switching type models empirical applications of the procedure to argentina brazil japan uk and usa are examined and discussed

fiscal regimes and fiscal sustainability in sri lanka this paper employs the regime switching model based fiscal sustainability test which relaxes the linear fiscal reaction function approach there is evidence of a regime switching fiscal rule in sri