Government Spending and the Taylor Principle

This paper explores how government size affects the scope for equilibrium indeterminacy in a New Keynesian economy, where part of the population live hand-to-mouth. The main result is that a higher level of public consumption is likely to generate indeterminacy and render the Taylor principle insufficient as criterion for equilibrium uniqueness. This holds even though fiscal policy serves to reduce swings in current income. Only if government consumption is a substitute for private consumption, will it narrow the scope for indeterminacy. Hence monetary policy should be conducted with an eye to the amount and composition of government consumption.     

Disentangling demand and supply in credit developments: A survey-based analysis for Italy

This paper combines qualitative information from the Eurosystem Bank Lending Survey with micro-data on loans for the participating Italian banks to assess the role of supply and demand factors in lending to enterprises developments, with a focus on the 2007-2009 financial crisis. Both demand and supply have played a relevant role, in the whole sample period and during the crisis. A counterfactual exercise shows that the effect of supply factors on the growth of lending was strongest after the Lehman collapse. On average, over the crisis period the negative effect on the annualized quarter-on-quarter growth rate of the panel banks’ lending to enterprises can be estimated in a range of 2.3-3.1 percentage points, depending on the specification. About one fourth of the total supply effect can be attributed to costs related to the banks’ balance sheet position, the rest to their perception of credit risk.     

Alternative Methods for Solving Heterogeneous Firm Models

I implement and compare five solution methods for a benchmark heterogeneous firms model with lumpy capital adjustment and aggregate uncertainty. The Krusell–Smith algorithm performs best within a group of methods using projection in the aggregate states. Another technique, Parameterization plus Perturbation, is much faster and performs best within a group of methods using perturbation in aggregates. However, projection and perturbation have nonoverlapping strengths and weaknesses. I highlight the resulting trade‐offs with several model extensions. I recommend that researchers apply projection methods to cases with large shocks or nonlinear dynamics, while cases with explicitly distributional channels at work favor perturbation.     

On the cyclical behavior of employment, unemployment and labor force participation

In this paper I evaluate to what extent a real business cycle (RBC) model that incorporates search and home production decisions can simultaneously account for the observed behavior of employment, unemployment and out-of-the-labor-force. This contrasts with the previous RBC literature, which analyzed employment or hours fluctuations either by lumping together unemployment and out-of-the-labor-force into a single non-employment state or by assuming a fixed labor force. Once the three employment states are explicitly introduced I find that the RBC model generates highly counterfactual labor market dynamics.     

What Makes the Output–Inflation Trade‐Off Change? The Absence of Accelerating Deflation in Japan

It is standard to model the output–inflation trade-off as a linear relationship with a time-invariant slope. We assess empirical evidence for two sets of theories that allow for endogenous variation in the slope of the short-run Phillips curve. At an empirical level, we examine why large negative output gaps in Japan in the late 1990s did not lead to accelerating deflation but instead coincided with stable, albeit moderately negative inflation. Our results suggest that this episode is most convincingly interpreted as reflecting a gradual flattening of the Phillips curve. We find that this flattening is best explained by models with endogenous price durations. These models imply that in any economy where trend inflation is substantially lower (or substantially higher) today than in past decades, time variation in the slope of the Phillips curve has become too important to ignore.     

Regime-switching debt and taxation

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

The Relationships between Permanent and Transitory Movements in U.S. Output and the Unemployment Rate

This paper estimates the permanent and transitory movements in U.S. output and the unemployment rate and the relationships between them. The results suggest that permanent movements in U.S. output and the unemployment rate are important for explaining overall fluctuations. Further, the correlation between changes in these series arises in large part due to the relationship between their permanent components.     

Macroeconomic announcements, volatility, and interrelationships: An examination of the UK interest rate and equity markets

This study investigates the intraday and daily pricing behavior of UK interest rate and equity index futures contracts. The paper initially examines the response of Short Sterling, Long Gilt, and FTSE100 to the release of scheduled macroeconomic announcements before employing dynamic time series techniques in order to reveal the nature of causal transmission patterns between these variables. In brief, short-term interest rates were found to be highly sensitive to indicators of prevailing economic conditions. However, the release of data important in the formation of inflationary expectations had a relatively subdued impact on long-term rates. Announcement effects appear somewhat ambiguous for the stock market. The analysis also reveals the bid-ask bounce and swift mean reversion in volatility to be important behavioral features of the return-generating process. Whilst the three variables appear to be bound by two cointegrating relationships, the tests for lead/lag relationships produce mixed results.     

Financial development and the instability of open economies

This paper introduces a framework for analyzing the role of financial factors as a source of instability in small open economies. Our basic model is a dynamic open economy model with a tradeable good produced with capital and a country-specific factor. We also assume that firms face credit constraints, with the constraint being tighter at a lower level of financial development. A basic implication of this model is that economies at an intermediate level of financial development are more unstable than either very developed or very underdeveloped economies. This is true both in the sense that temporary shocks have large and persistent effects and also in the sense that these economies can exhibit cycles. Thus, countries that are going through a phase of financial development may become more unstable in the short run. Similarly, full capital account liberalization may destabilize the economy in economies at an intermediate level of financial development: phases of growth with capital inflows are followed by collapse with capital outflows. On the other hand, foreign direct investment does not destabilize.     

Are structural VARs with long-run restrictions useful in developing business cycle theory?

No, unless technology shocks account for virtually all of the fluctuations in output.