The response of term rates to monetary policy uncertainty

This paper shows that greater uncertainty about monetary policy can lead to a decline in nominal interest rates. In the context of a limited participation model, monetary policy uncertainty is modeled as a mean preserving spread in the distribution for the money growth process. This increase in uncertainty lowers the yield on short-term maturity bonds because the household sector responds by increasing liquidity in the banking sector. Long-term maturity bonds also have lower yields but this decrease is a result of the effect that greater uncertainty has on the nominal intertemporal rate of substitution—which is a convex function of money growth. We examine the nature of these relations empirically by introducing the GARCH-SVAR model—a multivariate generalization of the GARCH-M model. The predictions of the model are broadly supported by the data: higher uncertainty in the federal funds rate can lower the yields of the three- and six-month treasury bill rates.     

Market concentration, macroeconomic uncertainty and monetary policy

This paper studies the effect of market structure and macroeconomic uncertainty on the transmission of monetary policy. We motivate our analysis with a simple model which predicts that: (1) investment and production in more concentrated sectors are more affected by demand shocks and (2) high uncertainty makes investment and production more sensitive to demand shocks. The empirical analysis estimates the effect of monetary shocks on sectoral output for different sectors in the US using a structural vector autoregressive (VAR) approach. The results are generally consistent with the theoretical predictions.     

Regime switches under policy uncertainty in monetary unions

This paper analyzes the effects of policy uncertainty on the stability of a monetary union. Focusing on peripheral countries, we study how uncertainty over the consequences of a possible exit affects regime switches. Applying game theory and a cost-benefit analysis, we model a regime switch as the endogenous result of a two-stage policy game. We find that the effects of uncertainty are not trivial. Unilateral exits are less probable, but contagion is more likely to be observed. Our results are driven by two opposite forces: a traditional conservative effect induced by policy uncertainty in a single policymaker framework, which calls for more stability, and a strategic effect, arising from the strategic interaction, which may undermine the monetary union's foundation and strengthen incentives for contagion.     

Financial innovations and the future of monetary policy in Nigeria

This paper examines the implications of financial innovations on Nigeria’s monetary policy, using: trend analysis, error correction mechanism, and a structural model estimated with generalized method of moments. The study found that financial innovation improves the interest rate channel of monetary policy transmission, and the efficiency of the financial system. However, it increases the output gap and adds an element of uncertainty in the monetary policy environment as it increases the cost of implementing monetary policy and impinges on the potency of the operating target through its impact on the stability of the money multiplier, money velocity, and demand for money.     

Economic uncertainty in South Africa

The idea that heightened uncertainty among firms contributed to the Great Recession and the lacklustre subsequent recovery has inspired a substantial literature examining the impact of changes in uncertainty on output and investment decisions. Yet to date there has been little research on business uncertainty in emerging markets. This paper is one of the first to develop a set of survey-based proxies for business uncertainty for an emerging market, South Africa, based on micro-data from business tendency surveys. These survey-based proxies are combined with more common measures of uncertainty, based on financial data and text mining, to obtain a composite measure of economic uncertainty. The paper then examines whether the uncertainty indicators have plausible and significant relationships with real economic activity, even after controlling for other economic variables. The indicators exhibit a significant negative correlation with real GDP growth, consistent with the findings for developed countries, and a positive shock to uncertainty is generally followed by a significant decrease in real activity growth.     

Financial market imperfections and monetary policy strategy

In a model with imperfect money, credit and reserve markets, we examine if an inflation-targeting central bank applying the funds rate operating procedure to indirectly control market interest rates also needs a monetary aggregate as policy instrument. We show that if private agents use information extracted from money and financial markets to form inflation expectations and if interest rate pass-through is incomplete, the central bank can use a narrow monetary aggregate and the discount interest rate as independent and complementary policy instruments to reinforce the credibility of its announcements and the role of inflation target as a nominal anchor for inflation expectations. This study shows how a monetary policy strategy combining inflation targeting and monetary targeting can be conceived to guarantee macroeconomic stability and the credibility of monetary policy. Friedman's k-percent money growth rule, which can generate dynamic instability, and two alternative stabilizing feedback monetary targeting rules are examined.     

Labour markets, liquidity, and monetary policy regimes

Abstract.  We develop an equilibrium model of the monetary policy transmission mechanism that highlights information frictions in the market for money and search frictions in the labour market. The information friction increases the persistence in the response of interest rates following monetary policy regime shifts. This occurs because agents have incomplete information about the nature of the shifts and optimally update their inflation forecasts using an 'adaptive' expectations rule. The search friction transmits the interest rate movements to the labour market by affecting job creation activities; together, the two frictions imply that unemployment reacts very gradually to monetary policy shocks. JEL Classification: E4, E5     

The role of monetary policy credibility in explaining the decline in exchange rate pass-through in South Africa

This paper investigates the key factors that explain the documented decline in the exchange rate pass-through in South Africa over the past two decades. The paper finds that this outcome is largely due to improved monetary policy credibility. The South African Reserve Bank has become more credible since the adoption of the inflation target regime through improved communication, transparency, and independence. We show that credibility is enhanced through a gradual disinflation process and reduction of inflation volatility. As result, expectations of agents have become well-anchored at levels that are consistent with its objectives of keeping inflation within the official target range of 3–6 percent even in the presence of external shocks. This in turn reduces the exchange rate pass-through. This finding is important from a monetary policy perspective not only for South Africa but other emerging economies such as Turkey as it shows that improving monetary policy credibility is a key ingredient to reducing exchange rate pass-through.     

Information from financial markets and VAR measures of monetary policy

Exogenous measures of monetary policy shocks, directly derived from financial market information, are used in close (US) and open (US–Germany) economy VAR models to evaluate the robustness of the dynamic effect of monetary policy obtained from traditional identified VAR. The empirical analysis confirms the main features of the monetary policy transmission mechanism in US and Germany, explicitly addressing the issue of simultaneity between the German policy interest rate and the US dollar–DMark exchange rate.     

Robust monetary policy under model uncertainty and inflation persistence

In this paper, we examine the inflation persistence puzzle by applying the robust control approach of Hansen and Sargent (2008). In line with the literature suggesting that inflation persistence may be affected by the monetary policy design and its institutional characteristics, we find that inflation persistence is positively related to the central bank's preference for model robustness. In effect, model uncertainty and robust decision making may be considered as a mechanism generating inflation persistence, for a given non-zero degree of autocorrelation in supply-side shocks. Further, the policy implication is that the central bank's monetary policy under model uncertainty renders, in terms of the sacrifice ratio, the output-cost of inflation stabilization more important.     

Bank lending and the stock market's response to monetary policy shocks

This paper explores whether a limited participation model modified to include features of the bank lending channel can account for the empirically observed reaction of stock market returns to monetary policy shocks. When calibrated to match characteristics of US data, the model generates responses that broadly match the empirical counterparts. The results also suggest, that the higher exposure of bank-dependent firms to liquidity shocks generates substantial heterogeneity of the responses across firms.     

Optimal monetary policy reaction function in a model with target zones and asymmetric preferences for South Africa

This paper estimates the optimal response of the SARB to deviations of inflation and output from their target values over the inflation targeting era. This is achieved using an empirical framework that allows the central bank's policy preferences to be zone-like and asymmetric. The first major finding is that the monetary authorities' response towards inflation is zone symmetric. That is, they react in a passive manner when inflation is within the target band whereas they become increasingly aggressive when it deviates from the target band. The monetary authorities also react with the same level of aggressiveness regardless of whether inflation overshoots or undershoots the inflation target band. The second major finding is that the monetary authorities' response to output fluctuations is asymmetric. That is, they react more aggressively to negative deviations of output from the potential so that they weigh business cycle recessions more than expansions.     

The role of labor markets for euro area monetary policy

In this paper, we explore the role of labor markets for monetary policy in the euro area in a New Keynesian model in which labor markets are characterized by search and matching frictions. We first investigate to which extent a more flexible labor market would alter the business cycle behavior and the transmission of monetary policy. We find that while a lower degree of wage rigidity makes monetary policy more effective, i.e. a monetary policy shock transmits faster onto inflation, the importance of other labor market rigidities for the transmission of shocks is rather limited. Second, having estimated the model by Bayesian techniques we analyze to which extent labor market shocks, such as disturbances in the vacancy posting process, shocks to the separation rate and variations in bargaining power are important determinants of business cycle fluctuations. Our results point primarily towards disturbances in the bargaining process as a significant contributor to inflation and output fluctuations. In sum, the paper supports current central bank practice which appears to put considerable effort into monitoring euro area wage dynamics and which appears to treat some of the other labor market information as less important for monetary policy.     

The effect of US stress tests on monetary policy spillovers to emerging markets

This paper explores the transmission of US monetary policy through US banks to emerging market economies (EMEs) and the role that stress tests play in this transmission. Data on US banks’ monthly commercial and industrial loan originations shows that: (a) US bank lending to EMEs was sensitive to domestic monetary policy changes during the zero‐lower bound period. (b) Effects of monetary easing were heterogeneous across banks and depended on banks’ stress test results, a proxy for their capital strength. Only banks that comfortably passed the stress tests issued more loans to EME borrowers. (c) Effects of monetary tightening were more similar across banks. (d) Banks shifted their lending to safer borrowers within EMEs in response to monetary easing, leaving the risk of their overall loan books unchanged. These results support the hypothesis that bank capital affects the transmission of easier monetary policy, including across borders. We conjecture that bank lending to EMEs during the zero‐lower bound period would have been even higher had the United States not introduced stress tests for their banks.     

Financial systems and the cost channel transmission of monetary policy shocks

We study the role of financial systems for the cost channel transmission of monetary policy in a calibrated business cycle model. We characterize financial systems by the share of bank-dependent firms and by the degree of the pass-through from policy to bank lending rates, for which we provide empirical estimates for the euro area and the US. For plausible calibrations of the dynamics of the lending rate we find that the cost effects directly related to interest rate movements have only a limited effect on the transmission mechanism.     

Financial frictions and optimal stabilization policy in a monetary union

Financial frictions differ across countries and thus cause international differences in the transmission of shocks. This paper shows how the optimal mix of monetary and fiscal policy depends on these country-specific financial frictions. To this end, we build a two-country DSGE-model of a monetary union. Financial frictions are captured by the cost channel approach. We show that the traditional solution to the assignment problem – the common central bank stabilizes the inflation rate at the union level and the national fiscal authorities stabilize the national economies – does not hold in a world with financial frictions. The cost channel decreases the efficiency of monetary policy and increases the need for fiscal stabilization even at the union level. Moreover, the more heterogeneous the union, the more important is fiscal policy in stabilizing shocks. Finally, we evaluate the scenarios in terms of welfare of the representative household.     

Welfare costs of monetary policy uncertainty in the economy with shifting trend inflation

We study welfare costs of the uncertainty about monetary policy in the economy featuring shifting trend inflation. We follow Ruge-Murcia (J Econ Dyn Control 36: 914–-938, 2012) to employ the SMM approach to fit the model to the US data (1979Q1-2015Q1). We find that the monetary policy uncertainty affects economic welfare through different dimensions. On the one hand, the policy uncertainty itself distorts the economic welfare negligibly, not only by increasing volatilities of consumption and leisure, but also by decreasing their average levels. A higher level of trend inflation then signifies these changes to produce greater welfare costs. Furthermore, the adverse impacts of policy uncertainty on the economy, documented by the impulse response functions of macroeconomic variables to policy uncertainty shock, become larger when central banks raise their inflation targets. On the other hand, the costs of exogenous variations in trend inflation are larger if there is policy uncertainty.     

Asymmetric response to monetary policy surprises at the long-end of the yield curve

This paper investigates the responsiveness of asset markets to monetary policy path revisions. Using federal funds futures contracts to extract near-term path revisions, we find that the responsiveness of longer term Treasury securities to path revisions is significantly asymmetric, the magnitude of which increases during tightenings and decreases during easings. These findings blend nicely with the earlier literature that documents asymmetric effects of monetary policy on output.