Monetary policy,heterogeneous population and inflation

Adding heterogeneity to an otherwise simple model results in a deviation from the Friedman rule. We show that a central bank concerned with inequality delivers an outcome below the Pareto frontier. Our results may shed light as to why central banks around the world do not follow the Friedman rule and instead deliver positive inflation rates. On the other hand, the calibrated model indicates that the implied optimal inflation rates are much higher than those observed in the data. One possible interpretation of our results is to question the recent wisdom of thinking of inequality as part of central banks’ concerns.     

Monetary policy with heterogeneous agents and borrowing constraints

We show that the long-run neutrality of inflation on capital accumulation obtained in complete market models no longer holds when households face binding credit constraints. Borrowing-constrained households are not able to rebalance their financial portfolio when inflation varies, and thus adjust their money holdings differently compared to unconstrained households. This heterogeneity leads to a new precautionary savings motive, which implies that inflation increases capital accumulation. We quantify the importance of this new channel in an incomplete market model where the traditional redistributive effects of inflation are also introduced. We show that this model provides a quantitative rationale for the observed hump-shaped relationship between inflation and capital accumulation.     

Monetary policy with heterogeneous households and imperfect risk-sharing

This paper considers a sticky-price model with heterogeneous households and financial frictions. Financial frictions lead to imperfect risk-sharing among households with idiosyncratic labor incomes. I study implications of imperfect risk-sharing for optimal monetary policy by documenting its impacts on the monetary transmission mechanism, the inflation–output tradeoff faced by the central bank, the policy objective function, and the resulting targeting rule. The main finding is that while the central bank continues to have the conventional dual mandate — the output gap and inflation stabilization — it should place a greater weight on the later as the degree of financial frictions increases because price stability provides the additional benefit of reducing undesired consumption dispersion.     

Interest-rate policy and rational expectations

The choice of monetary instrument under rational expectations is discussed in a general equilibrium model for the financial sector. It is shown that a supply rule leads to indeterminate asset prices, whereas the prices are determinate under an appropriately formulated interest-rate policy.     

Econometric policy evaluation and expectations

Recently large-scale econometric models have been criticized as inappropriate tools for policy evaluation. One critical point often mentioned is the way expectations are formed. This paper shows that the way the process of expectations formation is considered does not play a crucial role. Instead, the ability to model agents' reactions to changes in policy is the essence of the critique. As long as government behaviour is sufficiently accessible in the model, applied econometrics may still use large-scale systems for which rational expectations solutions would be troublesome if not impossible to reach.     

Monetary policy and consumers' demand

This paper puts to scrutiny the way monetary policy propagates its effects and the way it should be conducted, focusing on the behavior of consumers. Specifically, it considers a price elasticity of demand that increases with the level of consumption as is observed in the data. A realistic demand structure has remarkable implications for monetary policy. Three main results stand out. First, it can amplify the real effects of monetary and technology shocks. Second, it can weaken the ability of a simple Taylor rule to stabilize the economy. Third, it can attenuate the trade-off in the stabilization of output and inflation. These findings provide support to the notion of a dual mandate for the central bank. They are based on a novel mechanism of intertemporal substitution, whereby consumers have a weak incentive to smooth out the effects of income fluctuations. The mechanism lends itself to addressing questions of stabilization policy and business cycle analysis.     

Monetary policy and credit flows

The paper assesses the impact of monetary policy shocks on credit reallocation and evaluates the importance of theoretical monetary policy transmission mechanisms. Compustat data covering 1974 through 2017 is used to compute quarterly measures of credit flows of borrowing firms. I find that expansionary monetary policy is associated with positive long-term credit creation and credit destruction (i.e. credit reallocation). This impact is larger for financially constrained firms and those that are perceived as relatively risky to the lender. This is predicted by the balance sheet channel of monetary policy and mechanisms that reduce lenders’ risk perceptions and increase the tendency to search for yield.     

Monetary policy and country risk

This article develops an econometric model in order to study country risk behaviour for six emerging economies (Argentina, Mexico, Russia, Thailand, Korea and Indonesia), by expanding the country beta risk model of Harvey and Zhou (1993 Harvey, CR and Zhou, G. 1993. International asset pricing with alternative distributional specifications. Journal of Empirical Finance, 1: 107–31. [Crossref] , [Google Scholar]), Erb et al . (1996a, b) and Gangemi et al . (2000). Towards this end, we have analysed the impact of macroeconomic variables, especially monetary policy, upon country risk, by way of a time-varying parameter approach. The results indicate an unstable effect of monetary policy upon country risk in periods of crisis. However, this effect is stable in other periods, and the Favero–Giavazzi effect is not verified for all economies, with an opposite effect being observed in many cases.     

Monetary policy and asset prices

The purpose of this paper is study the effect of monetary policy on asset prices. We study the properties of a monetary model in which a real asset is valued for its rate of return and for its liquidity. We show that money is essential if and only if real assets are scarce, in the precise sense that their supply is not sufficient to satisfy the demand for liquidity. Our model generates a clear connection between asset prices and monetary policy. When money grows at a higher rate, inflation is higher and the return on money decreases. In equilibrium, no arbitrage amounts to equating the real return of both objects. Therefore, the price of the asset increases in order to lower its real return. This negative relationship between inflation and asset returns is in the spirit of research in finance initiated in the early 1980s.     

Business cycle amplification with heterogeneous expectations

This paper studies the implications for business cycle dynamics of heterogeneous expectations in a stochastic growth model. The assumption of homogeneous, rational expectations is replaced with a heterogeneous expectations model where a fraction of agents hold rational expectations and the remaining fraction adopt parsimonious forecasting models that are, in equilibrium, optimal within a restricted class. Our approach nests the literature on rational expectations in business cycle models with a recent approach based on adaptive learning. We demonstrate that (i.) heterogeneous expectations can lead to substantial improvement in the internal propagation of equilibrium business cycle models and (ii.) the internal propagation depends on the degree of heterogeneity. A calibrated model with heterogeneity provides a closer fit to business cycle data than its representative agent, rational expectations counterpart.     

Monetary policy implementation and transmission in the European Monetary Union

I discuss possible problems engendered by loss of national monetary policies, and study them from three empirical perspectives. First, are business cycles sufficiently synchronized across EMU member countries? The evidence suggests that economic activity in those countries has become increasingly correlated in the 1990s, and that policy co–ordination has played a role in generating that outcome. Second, are there asymmetries in the mechanisms through which policy affects economic activity? The paper documents that policy transmission was indeed heterogeneous in the member countries, and that structural and financial factors were sensibly related to cross–country differences in the response of output to a monetary policy shock. Third, how is policy implemented in an environment of diverse business cycle fundamentals and transmission mechanisms? Estimation of monetary policy reaction functions finds that the European Central Bank is closer to an aggregate of the central banks in Germany, France, and Italy than to the Bundesbank alone.     

Monetary policy,fiscal policy and cross signal jamming

This paper considers the issue of rule versus discretion when the central bank and the government share private information but have different preferences over inflation and output. We demonstrate that if the monetary policy is rule-based, Intuitive Criterion selects the unique separating equilibrium in which the central bank signals a low supply shock by a low interest rate. Interestingly, discretion may be better than the rule for the central bank, contrary to the case of complete information. Also, we examine the effect of information asymmetry on the monetary and fiscal policy mix. We show that cross signal jamming whereby the monetary authority and the fiscal authority successfully jams an unfavorable signal of each other does not occur in equilibrium.     

Monetary non-neutrality with anticipatory price setting and rational expectations

It is proved that the neutrality proposition for anticipated monetary policy fails, when markets do not continuously clear and prices partly adjust in accordance with rationally anticipated disequilibrium. The model exhibits non-uniqueness, but all solutions are non-neutral.     

Monetary policy regimes and beliefs*

This article investigates the role of beliefs over monetary policy in propagating the effects of monetary policy shocks within the context of a dynamic, stochastic general equilibrium model. In our model, monetary policy periodically switches between low and high money growth regimes. When individuals are unable to observe the regime directly, they form inferences over regime‐type based on historical money growth rates. For an empirically plausible money growth process, beliefs evolve slowly in the wake of a regime change. As a result, our model is able to capture some of the observed persistence of real and nominal variables following such a regime change.     

Monetary policy and real wage cyclicality

This article points to the potential role of monetary policy in affecting the degree of real wage cyclicality. We show that the degree and direction of real wage cyclicality is determined by the interaction of (i) the returns to scale in production, (ii) the nature of aggregate shocks and (iii) monetary policy. Given that production technology is fairly constant in the short run, we suggest that variations in the real wage – output covariance depend largely on the combination of the latter two. Identifying well-documented monetary policy phases in six major Organization for Economic Co-operation and Development (OECD) countries and accounting for both aggregate demand and supply shocks, we provide empirical evidence to support our main theoretical claim.     

Exchange rate expectations and economic policy uncertainty

This study provides a new angle on the relationship between political decisions and exchange rates. We link a conventional exchange rate modeling approach to the literature on the political economy of exchange rates and studies dealing with the role of policy announcements for financial market expectations by addressing the impact of policy uncertainty on exchange rate expectations and forecast errors of professionals. Our results show that expectations are not only affected by announcements but also by the degree of uncertainty regarding the future stance of economic policy. We find that forecast errors are strongly affected by policy uncertainty compared to expectations, suggesting that the effect of uncertainty is not efficiently accounted for in market expectations. Our main findings hold for economic policy uncertainty, fiscal policy uncertainty and monetary policy uncertainty. In addition, the estimates for the Japanese yen suggest a safe haven role of the yen since higher policy uncertainty in the US results in an expected appreciation of the yen.     

Confident expectations, rational expectations and the optimal conduct of monetary policy

Under what conditions central banks can afford to deviate from announced targets without losing their reputation is analyzed. For this, the public must have something like ‘confident expectations' vis-a-vis monetary policy and central banks have to behave accordingly. The paper shows that it can be rational for the public and welfare-increasing for the society to retain ‘confident expectations' instead of switching to rational expectations, when central banks have gained long-run reputation. At the end of the paper, alternative optimal money supply rules are compared in a dynamic optimization framework. © 1998 Elsevier Science B.V. All rights reserved.     

Monetary policy in the UK

The authors argue that the institutional dimension of the Bankof England monetary policy and the role the UK HM Treasury assumesin this framework are both firmly based on the New Consensusin Macroeconomics (NCM). This is also the theoretical frameworkupon which the inflation targeting element of monetary policyis firmly based. This paper discusses these aspects of UK monetarypolicy, and then assesses the policy that has been pursued since1997 (with some reference made to the period between 1992 and1997 when a version of the framework was introduced). The strategyhas been successful in terms of keeping UK inflation rates withinthe targets set by HM Treasury. However, a number of problematicissues are highlighted and discussed.     

Monetary policy in open economies

The recent literature on monetary policy in open economies has produced a strong presumption in favor of activistic policy and flexible exchange rates. We argue that this result may owe much to the combination of two commonly made assumptions: That nominal goods prices are rigid. And that the monetary authorities have a lot of information about the economy. When the source of nominal rigidity is found in wages and monetary policy is conducted according to less information demanding rules (such as a standard interest rate rule) policies that stabilize the money supply or the nominal exchange rate may perform better.