The Government Spending Multiplier at the Zero Lower Bound: Evidence from the United States

We estimate state‐dependent government spending multipliers for the United States. We use a factor‐augmented interacted vector autoregression (FAIVAR) model. This allows us to capture the time‐varying monetary policy characteristics including the recent zero interest rate lower bound (ZLB) state, to account for the state of the business cycle and to address the limited information problem typically inherent in VARs. We identify government spending shocks by sign restrictions and use a government spending growth forecast series to account for the effects of anticipated fiscal policy. In our baseline specification, we find that government spending multipliers in a recession range from 3.56 to 3.79 at the ZLB. Away from the ZLB, multipliers in recessions range from 2.31 to 3.05. Several robustness analyses confirm that multipliers are higher, when the interest rate is lower and that multipliers in recessions exceed multipliers in expansions. Our results are consistent with theories that predict larger multipliers at the ZLB.     

Optimal fiscal and monetary policy with occasionally binding zero bound constraints

This paper studies optimal fiscal and monetary policy when the nominal interest rate is subject to the zero lower bound (ZLB) constraint in a stochastic New Keynesian economy. In the baseline model calibrated to match key features of the U.S. economy, it is optimal for the government to increase its spending when at the ZLB in the stochastic environment by about 60 percent more than it would in the deterministic environment. The presence of uncertainty creates a unique time-consistency problem if the steady state is inefficient. Although access to government spending policy increases welfare in the face of a large deflationary shock, it decreases welfare during normal times as the government reduces the nominal interest rate less aggressively before reaching the ZLB.     

Nonlinear effects of government spending shocks in the USA: Evidence from state‐level data

This paper uses state‐level data to estimate the effect of government spending shocks during expansions and recessions. By employing a mixed‐frequency framework, we are able to include a long span of annual state‐level government spending data in our nonlinear quarterly panel VAR model. We find evidence that for the average state the fiscal multiplier is larger during recessions. However, there is substantial heterogeneity across the cross‐section. The degree of nonlinearity in the effect of spending shocks is larger in states that are subject to a higher degree of financial frictions. In contrast, states with a prevalence of manufacturing, mining and agricultural industries tend to have multipliers that are more similar across business cycle phases.     

Optimal discretionary monetary policy in a micro-founded model with a zero lower bound on nominal interest rate

This paper investigates optimal discretionary monetary policy under the zero lower bound on the nominal interest rate (ZLB) in the case of a distorted steady state due to monopoly and taxation. Solving a fully nonlinear micro-founded (FNL) model using a global method, I find that the central bank in a more distorted economy would cut the interest rate less aggressively under a particularly adverse demand shock. This occurs because inflation and nominal interest rates are higher on average, making the ZLB less likely to bind and causing the economy to escape from the ZLB sooner. However, the social planner would choose the optimal inflation rate of approximately zero. The result emerges because the unconditional benefit of avoiding the ZLB is not big enough to offset the cost of higher relative price dispersion when inflation is significantly positive. In addition, I show that the conventional linear-quadratic (LQ) method is inaccurate in the case of a sufficiently distorted steady state.     

Great recession,slow recovery and muted fiscal policies in the US

This paper reconsiders the role of macroeconomic shocks and policies in determining the Great Recession and the subsequent recovery in the US. The Great Recession was mainly caused by a large demand shock and by the ZLB on the interest rate policy. In contrast with previous findings, the subsequent jobless recovery is explained by the ZLB effect. We estimate a fraction of Non-Ricardian households which is close to 50%, and obtain comparatively large fiscal multipliers. However we cannot detect a significant contribution of fiscal policies in stabilizing the US economy. For instance, the 2007–2009 large increase in expenditure-to-GDP ratios was apparently determined by the adverse non-policy shocks that caused the recession.     

Gains from Wage Flexibility and the Zero Lower Bound*

We analyse the welfare impact of greater wage flexibility in the presence of an occasionally binding zero lower bound (ZLB) constraint on the nominal interest rate. We show that the ZLB constraint generally amplifies the adverse effects of greater wage flexibility on welfare when the central bank follows a conventional Taylor rule. When demand shocks are the driving force, the ZLB implies that an increase in wage flexibility reduces welfare even under the optimal monetary policy with commitment.     

Gains from Wage Flexibility and the Zero Lower Bound*

We analyse the welfare impact of greater wage flexibility in the presence of an occasionally binding zero lower bound (ZLB) constraint on the nominal interest rate. We show that the ZLB constraint generally amplifies the adverse effects of greater wage flexibility on welfare when the central bank follows a conventional Taylor rule. When demand shocks are the driving force, the ZLB implies that an increase in wage flexibility reduces welfare even under the optimal monetary policy with commitment.     

The zero lower bound,the dual mandate,and unconventional dynamics

This paper examines monetary policy when it is constrained by the zero lower bound (ZLB) on the nominal interest rate. Our analysis uses a nonlinear New Keynesian model with technology and discount factor shocks. Specifically, we investigate why technology shocks may have unconventional effects at the ZLB, what factors affect the likelihood of hitting the ZLB, and the implications of alternative monetary policy rules. We initially focus on a New Keynesian model without capital (Model 1) and then study that model with capital (Model 2). The advantage of including capital is that it introduces another mechanism for intertemporal substitution that strengthens the expectational effects of the ZLB. Four main findings emerge: (1) In Model 1, the choice of output target in the Taylor rule may reverse the effects of technology shocks when the ZLB binds; (2) When the central bank targets steady-state output in Model 2, a positive technology shock at the ZLB leads to more pronounced unconventional dynamics than in Model 1; (3) The presence of capital changes the qualitative effects of demand shocks and alters the impact of a monetary policy rule that emphasizes output stability; and (4) In Model 1, the constrained linear solution is a decent approximation of the nonlinear solution, but meaningful differences exist between the solutions in Model 2.     

Private debt overhang and the government spending multiplier: Evidence for the United States

Using state‐dependent local projections and historical US data, we find that government spending multipliers are considerably larger in periods of private debt overhang. In particular, while multipliers are below or close to one in low private debt states, we find significant crowding‐in of private spending in periods of debt overhang, resulting in multipliers that are much larger than one. In high private debt episodes, more government purchases even reduce the ratio of government debt to gross domestic product. These results are robust for the type of shocks, and when we control for the business cycle, financial crises, deleveraging episodes, government debt overhang, and the zero‐lower‐bound.     

Monetary and fiscal policy under deep habits

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

Dealing with a liquidity trap when government debt matters: Optimal time-consistent monetary and fiscal policy

How does the need to preserve government debt sustainability affect the optimal monetary and fiscal policy response to a liquidity trap? To provide an answer, we employ a small stochastic New Keynesian model with a zero bound on nominal interest rates and characterize optimal time-consistent stabilization policies. We focus on two policy tools, the short-term nominal interest rate and debt-financed government spending. The optimal policy response to a liquidity trap critically depends on the prevailing debt burden. While the optimal amount of government spending is decreasing in the level of outstanding government debt, future monetary policy is becoming more accommodative, triggering a change in private sector expectations that helps to dampen the fall in output and inflation at the outset of the liquidity trap.     

Nonlinear adventures at the zero lower bound

In this paper, we argue for the importance of explicitly considering nonlinearities in analyzing the behavior of the New Keynesian model with a zero lower bound (ZLB) of the nominal interest rate. To show this, we report how the decision rules and the equilibrium dynamics of the model are substantially affected by the nonlinear features brought about by the ZLB. We also illustrate a tension between the length of a spell at the ZLB and the drop in consumption there.     

WHICH FISCAL MULTIPLIERS ARE REGIME‐DEPENDENT? A META‐REGRESSION ANALYSIS

We analyse whether estimated multiplier effects are systematically higher if the economy suffers a downturn. For that purpose, we conduct a meta‐regression analysis on a unique data set of 98 empirical studies with more than 1800 observations on multiplier effects and control for regime‐dependence of the multiplier. We find that spending multipliers are much higher (by about 0.7–0.9 units) during a downturn. Tax multipliers are not sensitive to the economic regime, and generally lower than spending multipliers. Finally, for all spending categories other than government consumption, the multiplier significantly exceeds one during downturns.     

Implications of productive government spending for fiscal policy

The standard assumption in macroeconomics that government spending is unproductive can have substantive implications for tax and spending policy. Productive government spending introduces a positive feedback between the tax rate, the productive capacity of the economy, and tax revenue. We allow marginal tax revenue to be optimally allocated between productive subsidies to human capital and utility-enhancing government consumption and calculate Laffer Curves for the US. Productive government spending yields higher revenue-maximizing tax rates, steeper slopes at low tax rates and higher peaks. The differences are particularly pronounced for the labor-tax Laffer curve. The use of tax revenue is an important determinant of the actual revenue that a tax rate increase generates.     

Fiscal policy in good and bad times

In this paper we analyze whether the effect of fiscal policy differs across the business cycle. To tackle this question, we use a regime-switching error-correction framework, where nonlinearities are only modeled in the short-run and have no impact on the long-run equilibrium. Regime specific shocks to government revenue and government purchases are identified using sign restrictions. Linear combinations of the impulse responses of these basic shocks are used to construct a deficit-spending shock and a deficit-financed tax-cut shock. We find that active spending policies have a stronger impact in recession, with multipliers exceeding unity, and should be preferred to deficit-financed tax-cuts.     

What are the effects of fiscal policy shocks?

We propose and apply a new approach for analyzing the effects of fiscal policy using vector autoregressions. Specifically, we use sign restrictions to identify a government revenue shock as well as a government spending shock, while controlling for a generic business cycle shock and a monetary policy shock. We explicitly allow for the possibility of announcement effects, i.e., that a current fiscal policy shock changes fiscal policy variables in the future, but not at present. We construct the impulse responses to three linear combinations of these fiscal shocks, corresponding to the three scenarios of deficit‐spending, deficit‐financed tax cuts and a balanced budget spending expansion. We apply the method to US quarterly data from 1955 to 2000. We find that deficit‐financed tax cuts work best among these three scenarios to improve GDP, with a maximal present value multiplier of five dollars of total additional GDP per each dollar of the total cut in government revenue 5 years after the shock. Copyright © 2009 John Wiley & Sons, Ltd.     

UK term structure decompositions at the zero lower bound

This paper employs a zero lower bound (ZLB) consistent shadow‐rate model to decompose UK nominal yields into expectation and term premium components. Compared to a standard affine term structure model, it performs relatively better in a ZLB setting by capturing the stylized facts of the yield curve. The ZLB model is then exploited to estimate inflation expectations and risk premiums. This entails jointly pricing and decomposing nominal and real UK yields. We find evidence that medium‐ and long‐term inflation expectations are contained within narrower bounds since the early 1990s, suggesting monetary policy credibility improved after the introduction of inflation targeting.     

The Political Economy of Investment in Human Capital

Investments in human capital accumulation, government consumption and total government expenditures present a striking negative correlation with capital shares. This correlation is robust to alternative specifications, lists of controls, and exclusion of outliers. Causality tests strongly support the hypothesis that the direction of causation runs from capital shares to the government spending variables. We present a political economy model of interest groups that can account for these correlations. In contrast, a median voter model predicts positive correlations between capital shares and the government spending variables.     

Economic Outlook 1985- 1989: The London Business School with Gower Publishing: Forecast Release: THE AUTUMN STATEMENT: IF YOU CAN'T BEAT 'EM

In announcing significant increases in public spending in the Autumn Statement, the government has recognised that the scope for further interest rate reductions ahead of the election is virtually nil. It has therefore sought to boost demand, and its own popularity, by a fiscal relaxation. It so doing, it is prepared to risk a PSBR. (excluding privatization) of £27bn, exactly in line with the estimates which we made in June of Labour Party policy. In terms of macroeconomic policy, therefore, the gap between the two parties is virtually closed, while that between Mr. Major's government and that of Mrs. Thatcher is evident. Front this starting point, we argue that honouring Mr. Laniont's pledge on income tax could be at the expense of removing tax relief on mortgage interest payments and that a Labour government which still cherishes higher public spending may be forced into continuing the privatization programme. Under either Party there is a strong political case for tax increases, or for rescinding some of the planned increase in spending, early in the life of the next Parliament in order to bring the economic and political cycles back into synchronisation from which they were disturbed by Mr. Lawson's tax-cutting Budget of 1988.     

不同资本账户开放程度下的中国财政货币政策效果分析

研究目标：分析不同资本账户开放程度下的中国财政货币政策效果及福利效应。研究方法：将内生化的政府支出（税收）政策以及包含汇率的价格（数量）型为主的混合货币政策一并纳入一个小型开放的DSGE模型。研究发现：随着资本账户的逐步放开,财政政策方面,减税政策刺激经济增长和促进就业的效果越来越好,政府支出政策刺激经济增长和促进就业的效果越来越差;货币政策方面,国内货币政策的调控效果及利率上升的跨期替代效应减弱。从社会福利损失的角度分析表明：无论是与内生化的政府支出（税收）政策组合还是与财政赤字政策组合,价格型为主的混合货币政策始终优于数量型为主的混合货币政策。研究创新：考察在高、中和低三种资本账户开放背景下中国不同财政货币政策组合的相互作用和经济效应。研究价值：为资本账户放开过程中合理地使用财政货币政策组合提供理论参考。