Optimal fiscal policy under learning

This paper characterizes optimal fiscal policy when agents learn about future taxation. A benevolent and fully rational government chooses taxes on labor income and state-contingent bonds to finance public spending, considering that private agents form their expectations through a learning algorithm. Facing a trade-off between distortionary taxes and distorted expectations, the Ramsey planner chooses the policy that minimizes the total cost of distortions. The analysis produces two main results. First, the government will use fiscal variables to manipulate expectations, reducing taxes and issuing debt at times of pessimism and doing the opposite at times of optimism. This speeds up learning. Second, the expectation-dependent fiscal plan is also history-dependent, and it prescribes taxes that are not as smooth and more persistent than under rational expectations. These findings are robust to alternative learning algorithms.     

Shortages and economic policy

In this paper, we use an input-output framework to model an economy experiencing a shortage of a primary product or intermediate good. We show that when a shortage is combined with factor price rigidities, the reduction in consumption and employment will be larger than is necessary. In such cases, there is a need for government intervention, to manage the shortage and make the best of a bad situation. We show that the impact of a shortage can be ameliorated by changes in the composition of output, brought about by direct allocation of the scarce input or by differential sales taxes. The traditional instruments of monetary and fiscal policy are shown to be of little use in dealing with shortages.     

Commodity prices and fiscal policy design: Procyclical despite a rule

Recent studies offer evidence of reduced fiscal procyclicality to commodity price changes in resource‐rich countries—a feature commonly attributed to the adoption of fiscal policy rules. We revisit this issue and find that, by controlling for global activity shocks while allowing for time‐varying changes in both fiscal policy and the volatility of shocks, this finding does not hold. To show this we develop a time‐varying dynamic factor model, allowing for a multiple of shocks, stochastic volatility and time‐varying parameters, and estimate it on data for Norway, whose handling of resource wealth is often cited as exemplary.     

Measuring the effects of fiscal policy

Measuring the effects of discretionary fiscal policy is both difficult and controversial, as some explicit or implicit identifying assumptions need to be made to isolate exogenous and unanticipated changes in taxes and government spending. Studies based on structural vector autoregressions typically achieve identification by restricting the contemporaneous interaction of fiscal and non-fiscal variables in a rather arbitrary way. In this paper, we relax those restrictions and identify fiscal policy shocks by exploiting the conditional heteroscedasticity of the structural disturbances. We use this methodology to evaluate the macroeconomic effects of fiscal policy shocks in the U.S. before and after 1979. Our results show substantive differences in the economy׳s response to government spending and tax shocks across the two periods. Importantly, we find that increases in public spending are, in general, more effective than tax cuts in stimulating economic activity. A key contribution of this study is to provide a formal test of the identifying restrictions commonly used in the literature.     

Energy intensity and directed fiscal policy

This paper assesses the effects of fiscal policy on economy-wide energy intensity within an endogenous growth framework. To this end, we first develop a two-sector (investment good and consumption good) augmented AK model by integrating the Uzawa model with Rebelo’s AK model, and assume that a non-renewable resource is one of the factors of production. Using this framework, we solve the model for the short and long run, identifying the sufficient parameter conditions that ensure higher energy intensity in the investment goods sector. We then introduce a balanced budget government, whose objective is to decrease the economy-wide energy intensity by levying tax on the energy-intensive investment goods sector and subsidizing the consumption goods sector. Contrary to our expectations, we find that this fiscal policy design increases economy-wide energy intensity as it leads to a decline in real GDP without changing total energy consumption. On the basis of this model, we propose the concept of a ‘directed fiscal policy’, which connotes a reduction of the economy-wide energy intensity by following a heterogeneous taxation policy across sectors.     

The role of fiscal policy in the St. Louis model: An evaluation and some new evidence

This paper re-examines the role of high employment budget expenditures (fiscal policy) in the St. Louis expenditure equation by using spectral analysis and the spectral estimates of a two-sided distributed lag model. The analysis is undertaken with quarterly U.S. data from 1947:1 to 1984:IV in the rate of change form. A salient conclusion is that fiscal policy has statistically significant partial coherences with (nominal) income, with the latter leading the former over the business cycle. We find that income is jointly related to lead terms of fiscal policy in a two-sided distributed lag model. Some explanations for these results are provided.     

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.     

How important is fiscal policy cooperation in a currency union?

By constructing a dynamic stochastic general equilibrium model, which assumes a currency union consisting of two countries with nontradables, we study the importance of fiscal policy cooperation. As shown in the previous studies, we find that the role of fiscal policy is important in maximizing social welfare. However, we have a contrary result for fiscal policy cooperation. While the previous studies highlight that fiscal policy cooperation has a nontrivial effect in maximizing social welfare, we show that fiscal policy cooperation has no benefits, regardless of the share of nontradables. Self-oriented fiscal policy can replicate social welfare under the cooperative setting.     

Least squares learning and the US Treasury bill rate

Understanding how agents formulate their expectations about Fed behavior is important for market participants because they can potentially use this information to make more accurate estimates of stock and bond prices. Although it is commonly assumed that agents learn over time, there is scant empirical evidence in support of this assumption. Thus, in this paper we test if the forecast of the three month T-bill rate in the Survey of Professional Forecasters (SPF) is consistent with least squares learning when there are discrete shifts in monetary policy. We first derive the mean, variance and autocovariances of the forecast errors from a recursive least squares learning algorithm when there are breaks in the structure of the model. We then apply the Bai and Perron (1998) test for structural change to a forecasting model for the three month T-bill rate in order to identify changes in monetary policy. Having identified the policy regimes, we then estimate the implied biases in the interest rate forecasts within each regime. We find that when the forecast errors from the SPF are corrected for the biases due to shifts in policy, the forecasts are consistent with least squares learning.     

Budget regimes and internal governance: considerations for the sustainability of fiscal policy

In a fiscal policy set-up with Ricardian equivalence and rational expectations, the decision-making of private agents is based on the knowledge that current deficits will be met with future tax increases or spending decreases. This view requires that the government's budget exhibit intertemporal balance, or that fiscal policy be sustainable. This paper examines the extent to which sustainability holds in the light of changes in the institutional structure of the budget process and changes in internal House governance rules. The results indicate that certain aspects of sustainability are related to the underlying institutional structure and governance of the budget process. The authors wish to thank the editors and three anonymous referees for their thoughtful comments and suggestions. All remaining errors remain our own.     

Fiscal policy and asset markets: A semiparametric analysis

Using a flexible semiparametric varying coefficient model specification, this paper examines the role of fiscal policy on the US asset markets (stocks, corporate and treasury bonds). We consider two possible roles of fiscal deficits (or surpluses): as a separate direct information variable and as a (indirect) conditioning information variable indicating binding constraints on monetary policy actions. The results show that the impact of monetary policy on the stock market varies, depending on fiscal expansion or contraction. The impact of fiscal policy on corporate and treasury bond yields follow similar patterns as in the equity market. The results are consistent with the notion of strong interdependence between monetary and fiscal policies.     

A portfolio approach to endogenous growth: equilibrium and optimal policy

This paper develops a portfolio approach to modeling endogenous growth in continuous time that is especially suitable for addressing fiscal and financial issues in policy design. The analysis focuses on the equilibrium relationship between fiscal and financial policy, rates of return and wealth allocation. We analyze two models. The first is based on the Arrow-Romer model with increasing returns and an external effect of capital on labor productivity. The second draws on Barro's analysis of government spending and endogenous growth. In both models, we study the equilibrium allocation and discuss the optimal fiscal and financial policy.     

Innovation dynamics and fiscal policy: Implications for growth,asset prices,and welfare

We study the equilibrium implications of different fiscal policies on macroeconomic quantities and welfare by utilizing an endogenous growth model that matches asset pricing data well. The fiscal instruments of interest are (i) subsidies to R&D expenditure, consumption and capital investment, and (ii) cuts in labor and corporate tax rates. Our equilibrium analysis provides new insights on the interplay of innovation dynamics and fiscal policy. Importantly, we find growth and welfare to be inversely related when changing R&D subsidies. However, this depends on how well the model reproduces asset pricing dynamics. Moreover, only subsidies to capital investments and cuts in the corporate tax rate have the potential to increase both growth and welfare.     

Anticipation,learning and welfare: the case of distortionary taxation

We study the impact of anticipated fiscal policy changes in a Ramsey economy where agents form long-horizon expectations using adaptive learning. We extend the existing framework by introducing distortionary taxes as well as elastic labor supply, which makes agents’ decisions non-predetermined but more realistic. We detect that the dynamic responses to anticipated tax changes under learning have oscillatory behavior that can be interpreted as self-fulfilling waves of optimism and pessimism emerging from systematic forecast errors. Moreover, we demonstrate that these waves can have important implications for the welfare consequences of fiscal reforms.     

The policy mix in the US and EMU: Evidence from a SVAR analysis

We use a SVAR approach to the effects of fiscal and monetary policies, as well as their interactions (policy mix) for the US and the Euro Area (EMU). Overall, our results show that these two cases are different from each other. First, while in the case of the US there is evidence of Keynesian monetary policy, the same is not true in the case of the EMU. Second, considering the effects of the global economic and financial crisis, there is evidence of non-Keynesian fiscal policy in the case of the EMU (expansionary fiscal consolidation), while it does not hold in the case of the US. Third, there is evidence supporting the traditional inverse relationship between monetary policy interest rates and inflation in the case of the US, whereas in the case of the EMU there is a price puzzle (frequent in SVAR studies). Fourth, the baseline model seems to be robust in the case of the US, when considering the effects of the economic and financial crisis 2007–2009, while the opposite holds in the case of the EMU. However, in both cases, the policies seem to act as complements. Another similarity appears when analysing the relationship between public spending and taxation, where there is evidence supporting a fiscal retrenchment.     

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.     

Are fiscal policy incentives effective in stimulating firms' eco-product innovation? The moderating role of dynamic capabilities

This study investigates the effectiveness of fiscal policy incentives—in particular, direct subsidies and tax credits—in stimulating eco-product innovation among Chinese manufacturing firms. We also examine the moderating effects of dynamic capabilities. The empirical results, which are based on survey data from 265 firms in China, demonstrate that both direct subsidies and tax credits are conducive to firms' eco-product innovation. In addition, we find that when firms' dynamic integration capabilities are strong, the facilitating effects of direct subsidies and tax credits on eco-product innovation are likewise strong. Moreover, dynamic reconfiguration capabilities positively moderate the relationship between tax credits and eco-product innovation. By identifying moderators that influence the effect of fiscal incentives on eco-product innovation in heterogeneous firms, this study contributes to fiscal policy debates and realizing sustainable development.     

Monetary policy on twitter and asset prices: Evidence from computational text analysis

In this paper, we dissect the Twitter debate about the future course of monetary policy and trace the effects of selected topics of this discourse on U.S. asset prices. We focus on the “taper tantrum” episode in 2013, a period with large revisions in expectations about future Fed policy. Based on a novel data set of 90,000 Twitter messages (“tweets”) covering the debate of Fed tapering on Twitter, we use Latent Dirichlet Allocation, a computational text analysis tool, to quantify the content of the discussion. Several estimated topic frequencies are then included in a VAR model to estimate the effects of topic shocks on asset prices. We find that the discussion about Fed policy on social media contains price-relevant information. Shocks to the discussion about the timing of the tapering, about the broader economic policy context and worrying investors are shown to lead to significant asset price changes. We also show that the effects are mostly due to changes in the term premium of yields consistent with the portfolio balance channel of unconventional monetary policy.     

Time-varying cyclicality of fiscal policy: The case of the Euro area

We assess the cyclicality of fiscal policy in the 19 Euro area countries, notably during recessions, for the period 1995–2020. We use a time-varying measure of fiscal cyclicality to describe fiscal policy developments. The results suggest that during recessions discretionary fiscal policy becomes more pro-cyclical, but the overall budget balance becomes more counter-cyclical. Hence, pursuing a Ricardian fiscal regime by more indebted countries leads to higher counter-cyclicality of fiscal policy. Government size reduces counter-cyclicality, as well as trade openness, and financial development has a positive impact on counter-cyclicality.     

Planning Feature The Forecast in Detail: (2) Assumptions

We continue to make our best guesses about likely policy developments rather than assuming ' unchanged policies '. This forecast differs from our July forecast in that we have not assumed any income tax cuts; nor have we assumed, as we did in July, that National Insurance contributions would be increased. We do, however, continue to assume the abolition of the national insurance surcharge in two equal stages during the 1984-5 fiscal year, as well as the usual indexation of tax allowances and bands and revalorisation of indirect taxes. This change in assumptions about policy reflects our guess that the new Chancellor, Nigel Lawson, will attempt to hit his monetary targets by a combination of tighter fiscal policy and lower interest rates than we had previously assumed. In this forecast interest rates are on average about 2 points lower than in July.