Fiscal policy in the US: Sustainable after all?

The sustainability of US public debt has been widely discussed since the Great Recession. Using annual data since 1940, we estimate and compare different specifications of fiscal rules. Estimates of constant-parameter fiscal rules show no evidence of sustainability. This may be due to the instability of government's behaviour over time. Thus, we estimate a Markov-switching fiscal rule in order to identify periods of unsustainable and sustainable fiscal policies. First, we show that the government stabilizes public debt only periodically. Second, during these periods, the government's reaction is sufficiently tight to stabilize public debt over the entire horizon. We conclude that a relatively short-lived but tight fiscal contraction can be sufficient to ensure long-run US debt sustainability.     

The elusive character of fiscal sustainability

We assess the sustainability of public finances in OECD countries using unit root and cointegration analysis, controlling for endogenous breaks. Results deem fiscal sustainability as rather elusive since we find lack of cointegration – absence of sustainability – between government revenues and expenditures (except for Austria, Canada, France, Germany, Japan, Netherlands, Sweden and UK); improvements of the primary balance after worsening debt ratios only for Australia, Belgium, Germany, Ireland, Netherlands and the UK; and Granger causality from government debt to primary balances for 12 countries (suggesting Ricardian regimes).     

Debt ceiling and fiscal sustainability in Brazil: A quantile autoregression approach

In this paper we investigate fiscal sustainability by using a quantile autoregression (QAR) model. We propose a novel methodology to separate periods of nonstationarity from stationary ones, allowing us to identify various trajectories of public debt that are compatible with fiscal sustainability. We use such trajectories to construct a debt ceiling, that is, the largest value of public debt that does not jeopardize long-run fiscal sustainability. We make an out-of-sample forecast of such a ceiling and show how it could be used by Policy makers interested in keeping the public debt on a sustainable path. We illustrate the applicability of our results using Brazilian data.     

中国地方政府债务可持续、财政空间与经济增长*

根据Ghosh et al（2013）财政空间理论，利用2010—2019中国省级面板数据，对中国省级政府债务可持续、财政空间和经济增长之间的关系及其机制进行了研究。结果表明，中国个别省份出现了财政疲劳现象，要把控好债务风险雷区，但各地区债务限额存在异质性，在不损害可持续性的情况下，大部分地方政府有足够的“回旋余地”实施财政刺激政策。我国省级政府的财政空间和经济增长之间存在倒“U”型关系，即当政府负债率高于财政空间的临界点（或较低的财政空间）时开始阻碍经济增长，因此，需要通过降低政府负债率实现更高的增长。进一步研究发现，政府债务影响经济增长最重要的渠道是公共投资和私人投资，全要素生产率、储蓄和长期真实利率也是政府债务影响经济增长的重要渠道，而长期名义利率未能成为政府债务影响经济增长的渠道。     

Institutional arrangements and public debt threshold limits

Inter-governmental Organisations, such as the IMF and OECD, advocate a medium-term reduction in deficit spending and public debt accumulation among advanced economies to satisfy conditions of fiscal sustainability. Buttressing the need for fiscal austerity, Reinhart and Rogoff claim to have identified a so-called tipping point, beyond which public debt accumulation negatively affects economic growth. While recent data seem to indicate that some Eurozone (non-sovereign) economies have reached a tipping point, for other advanced (sovereign) economies, such as the US, UK and Japan, this is not clear. The mainstream tipping point literature however does not recognise the importance of institutional arrangements for the conduct of fiscal and monetary policy. Furthermore, the literature sheds little light on the transmission mechanism between high public debt and low economic growth. This article draws on the principles of Modern Monetary Theory to discuss institutional arrangements and to justify the theoretical and empirical focus on Eurozone economies. The empirical analysis unpacks the transmission mechanism(s) to reveal that Eurozone economies have reached a public debt threshold limit with respect to long-term interest rates.     

Notes and comments. On the sustainability area as a simplifying didactic device

Recently, the sustainability area of public finance has beenlaunched as a simplifying screening device for the analysisof fiscal sustainability. In this comment, it is argued thatthe novel notion of the sustainability area (reflecting, inturn, a simple notion of public debt sustainability) does not,by itself, have any bearing on the sustainability of publicfinances: being positioned within the sustainability area cannotserve as a reasonable criterion of fiscal sustainability.     

Generational accounts for Belgium: fiscal sustainability at a glance

This paper uses generational accounts to analyse the long term sustainability of Belgian public finances. We derive age-profiles of detailed tax and expenditure categories from micro data and microsimulation models, and plug them into a long run demographic projection. We assess fiscal long term sustainability under current fiscal and budgetary policy for the base year 2010, and perform simulations of counterfactuals to determine the relative contribution of the most important factors of the long run unsustainability. This update of the generational accounts for Belgium shows that, not unexpectedly, the budgetary situation in Belgium violates the intertemporal budget constraint and hence is unsustainable in the long run. The current level of explicit debt, however, only plays a minor role in explaining this sustainability problem. Ageing and the related increase in age related expenditures are the main drivers of the long run fiscal imbalance and the high level of implicit debt. We disentangle the Belgian generational accounts into their regional components and show that the major explanation for regional differences in generational accounts is not divergent demographic projections, but the wide differences in socio-economic situations, as revealed by the region specific age-profiles.     

Debt sustainability in emerging market countries: Some policy guidelines from a fan-chart approach

This paper uses a probabilistic approach to simulate the medium-term public debt trajectories of several major emerging market countries. We extend the standard debt sustainability analysis framework so as to more faithfully reproduce these countries’ economic reality in two aspects. First, we allow them to differ in the cyclical stance of their fiscal policy and in their degree of fiscal responsiveness to debt. Second, we explicitly integrate the specific risk premium paid by each country when borrowing in foreign currency. It allows us to evaluate the impact of alternative policies that the government may consider to improve sustainability. The results lead to three policy recommendations: i) a country should consider decreasing its exposure to currency risk only in extreme cases (like Argentina); ii) on the contrary, greater fiscal responsiveness (i.e. stronger fiscal tightening whenever there is a debt increase) could enhance sustainability to a much greater extent; iii) countries with low responsiveness to debt or a poor fiscal consolidation track record should be cautious with countercyclical fiscal policies, as they may trigger an unsustainable debt trajectory in the trough of the economic cycle.     

Fiscal space on the eurozone periphery and the use of the (partially) balanced-budget multiplier: The case of Spain

This article adopts the “functional finance” approach to consider the utilization of expansive fiscal policies in the members of the European Monetary Union most affected by high unemployment. As they do not have their own monetary policy, fiscal deficits require the issuing of public debt without the support of the central bank. The authors consequently incorporate the notion of a (partially) balanced-budget expansion to achieve the desired stimulus in gross domestic product (GDP) with the least possible effect on public debt. Their proposal is only a sort of “imperfect” balanced-budget expansion: It is based on the idea that simultaneous increases in public revenue and expenditure can boost GDP, but without any pretension of keeping public deficit unchanged. Specifically, the authors use the case of Spain to show that a more expansive fiscal policy is desirable on economic grounds, and that only institutional constraints prevent it. They do it presenting two alternative scenarios for the coming years and analyzing their different impact on unemployment and fiscal sustainability. The first represents a firm commitment to budget consolidation, whereas the second is based on this “imperfect” application of the balanced budget multiplier. The main conclusion is that a more expansive fiscal policy is perfectly compatible with finance sustainability.     

PRODUCTIVE GOVERNMENT EXPENDITURE IN MONETARY BUSINESS CYCLE MODELS

This paper assesses the transmission of fiscal policy shocks in a New Keynesian framework where government expenditures contribute to aggregate production. It is shown that even if the impact of government expenditures on production is small, this assumption helps to reconcile the models' predictions about fiscal policy effects with recent empirical evidence. In particular, it is shown that government expenditures can lead to a rise in private consumption, real wages, and employment if the government share is not too large and public finance does not solely rely on distortionary taxation. When government expenditures are partially financed by public debt, unit labor costs fall in response to a fiscal expansion, such that inflation tends to decline. Households are willing to raise consumption if monetary policy is active, i.e. ensures that the real interest rate rises with inflation. Otherwise, private consumption can also be crowded out, as in the conventional case where government expenditures are not productive.     

The dynamics of Greek public debt – evidence from simultaneous and structural VAR models

The goal of the present article was to investigate not only the dynamics of the Greek public debt, but also the appropriate measures required for achieving fiscal consolidation. The empirical estimation is carried out using a macroeconomic data set spanning the period 1980–2008 and both the three-stage least squares (3SLS) methodological approach on a theoretical model and the structural VAR methodology to perform forecast tests and to calibrate the future paths of the public debt variable up to 2020. The results suggest that only a restrictive fiscal policy that simultaneously increases government revenues and reduces government expenditure could permit the country to achieve debt sustainability. The results also suggest that debt sustainability can be achieved faster when tax revenue policies are intensified. The results are expected to have important implications to policymakers for designing effective macroeconomic policy in terms of achieving sustainable levels of public debt.     

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.     

Cyclicality of Fiscal Policy in Latin America over the period 1990 ‐ 2015

Latin American countries experienced important changes in the 2000s. The implementation of fiscal reforms, public debt reduction and the high level of accumulated reserves gave them more policy space than in the past. As a result, Latin American countries were able to implement countercyclical policies to face the negative economic and social consequences associated with the recent macroeconomic shock. Some countries performed better than others. In particular, Social Democratic and Centrist governments enjoyed more fiscal space; they had realized larger budget surpluses over the good years and were able to cope with the crisis without impairing their fiscal conditions. Yet, Latin America has experienced a public finance deterioration in the most recent years. While governments are showing an increasing ability on taxation they are still facing some problems on the expenditure side. As a result, fiscal policy returned acyclical after the period of the crisis. The sustainability of public accounts may be strengthened increasing tax pressure on the richest, reducing tax evasion and improving current spending efficiency. However, the increasing political problems are putting many questions about future trends of public finance in the region.     

Policy mix and debt sustainability: evidence from fiscal policy rules

This paper characterizes rules-based fiscal policy setting for G-3 and large EMS countries. We set up a simple fiscal policy rule and then infer on the policymakers’ reaction coefficients by testing with GMM. Our results qualify existing evidence on systematic fiscal policy in two respects. First, fiscal policy usually stabilizes public debt; and there is indeed substantial interaction between fiscal and monetary policies via the policy mix or the debt channel. Second, sustainability is achieved with a “stop–go” cycle of consolidation. Unless debt ratios are high, consolidation does not come at the cost of less cyclical stabilization.     

THE BEHAVIOR OF U.S. PUBLIC DEBT AND DEFICITS DURING THE GLOBAL FINANCIAL CRISIS

In this paper we test the sustainability of U.S. public debt for the period 1916–2012 by analyzing how the primary surplus to gross domestic product (GDP) responds to changes in the debt to GDP ratio in a time‐varying parameter model. Further, we determine the stationarity property of the debt/GDP ratio while accommodating possible breaks in the data caused by wars and economic crisis under both the null and alternative hypotheses of an endogenous unit root test. The results show that the U.S. public debt was sustainable until 2005 when the primary surplus to GDP reacted negatively to the debt/income ratio. This is further exacerbated during the global financial crisis when primary surpluses continued to fall with increased debt, thus jeopardizing the sustainability of fiscal policy. While the stationarity test shows that the U.S. fiscal debt/GDP ratio is sustainable, it fails to highlight the risk that its debt policy has been becoming unsustainable in recent years. (JEL H62, E62, C2)     

How big is the Chinese Government debt?

China’s public debt does not provide a meaningful guidance about the government’s overall debt burden, since it also has various forms of contingent liabilities such as shortfalls in the pension fund, debts of local government investment vehicles, and nonperforming loans of the state-owned commercial banks. However, there is no authoritative data on the government’s overall debt burden. In this paper, we try to put together a complete picture by piecing together information available, following a consistent framework. Our results suggest that the Chinese Government’s total debt could be already above 100% of GDP, in contrast to the public debt/GDP ratio of 15.5. Urgent reforms are needed in order to reduce fiscal risks, although risks of debt crisis look small in the short term, given sound balance sheet of the public sector. Local governments’ borrowing without hard budget constraint presents the greatest risk to sustainability of China’s fiscal system.     

Fiscal Austerity and the Multiplier in Times of Crisis

To address concerns about the sustainability of public debt, most industrialized countries shifted towards fiscal austerity after 2010. A popular concern is that austerity is self‐defeating, because fiscal multipliers can be large. Specifically, a number of recent studies find that multipliers tend to be large during financial crises and/or if monetary policy is constrained by the zero lower bound. However, public debt crises tend to have an offsetting effect by making multipliers smaller than during normal times. Consequently, while austerity is no cure for all, it is unlikely to be literally self‐defeating when sovereign risk is high.     

KLEM substitutability: a dynamic flexible demand system

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.     

A new test for fiscal sustainability with endogenous sovereign bond yields: Evidence for EU economies

In this paper we develop a new test for fiscal sustainability and propose a synthetic fiscal sustainability indicator. Conventional tests based on fiscal reaction functions assume a constant real interest rate. However, many empirical studies find evidence on a positive response of long-term rates to sovereign debt levels. We take this evidence into account and endogenize the long-term real interest rate in testing fiscal sustainability. We apply the new test for the European economies. We find that considering the response of interest rate to debt may change the assessment of fiscal sustainability. More specifically, our results indicate that fiscal sustainability is at risk in a number of European Union economies, even if the results of traditional approaches suggest sustainable fiscal policy.     

Non-linear budgetary policies: Evidence from 150 years of Italian public finance

We investigate the sustainability of Italy’s public finances from 1862 to 2012 adopting a non-linear perspective. Specifically, we employ the smooth transition regression approach to explore the scope for non-linear fiscal adjustments of primary surpluses in response to the accumulation of debt. The empirical results show the occurrence of a significantly positive reaction of primary surpluses to debt when the debt–GDP ratio exceeded the trigger value of 110 percent. The after-threshold positive response implies that the path of Italy’s fiscal policy is sufficiently consistent with the intertemporal budget constraint.