Optimal information acquisition and monetary policy

I study optimal monetary policy with an expectational AS curve and private agents who optimally choose their amount of information pertinent to predicting policy. Shocks with time-varying variance (ARCH) induce interesting information acquisition (IA) dynamics; optimal IA affects optimal policy and vice versa. Under discretion, IA dynamics cause time-varying effectiveness of policy because of the expectational AS curve; policy may be rendered completely ineffective. In policy game equilibrium, a fall in the shock’s variance typically induces less IA and raises welfare. In one exceptional case the opposite occurs, a result which does not require implausible unstable equilibria. An agent becoming informed increases the endogenous component of economic volatility; IA therefore has a negative externality. Under commitment policy’s effectiveness is again time-varying, but policy is never completely ineffective: commitment enables the central bank to credibly limit policy’s volatility; this limits private agents’ incentive to become informed, so limits expectation-induced policy neutrality.     

Discretionary policy in a monetary union with sovereign debt

This paper examines the interactions between multiple national fiscal policymakers and a single monetary policy maker in response to shocks to government debt in some or all of the countries of a monetary union. We assume that national governments respond to excess debt in an optimal manner, but that they do not have access to a commitment technology. This implies that national fiscal policy gradually reduces debt: the lack of a commitment technology precludes a random walk in steady-state debt, but the need to maintain national competitiveness avoids excessively rapid debt reduction. If the central bank can commit, it adjusts its policies only slightly in response to higher debt, allowing national fiscal policy to undertake most of the adjustment. However, if it cannot commit, then optimal monetary policy involves using interest rates to rapidly reduce debt, with significant welfare costs. We show that in these circumstances the central bank would do better to ignore national fiscal policies in formulating its policy.     

当代新凯恩斯主义货币经济学的新发展

将垄断竞争和名义刚性假设引入MIU模型,新凯恩斯主义者建立了与AS-IS-LM模型简单线性形式相一致的一般动态均衡模型,实现了基于微观最优行为的动态一般均衡货币理论模型与适用于货币政策分析的线性宏观经济模型的统一,政策分析的重点转向政策目标和工具规则的统一.但是,在政策目标选择,通货膨胀的动态性和政策工具规则设定方面仍未达成共识.     

财政、货币政策作用空间的历史变迁及其启示——基于中国财政、货币政策实践

财政政策发挥调控功能以国家财政拥有一定财力为基础,货币政策发挥调控功能以商业银行体系对中央银行的资金依赖为前提。失却此基础和前提,财政政策和货币政策调控功能就会大打折扣甚或完全丧失调控功能。新中国财政政策与货币政策作用空间的变迁经历了三个阶段,与之相适应,财政政策与货币政策调控功能分别经历了“强、弱、强”和“弱、强、弱”三种状态。经验表明,财政政策与货币政策作用空间的变迁与经济体制、国民经济运行格局息息相关。财政政策和货币政策要真正发挥宏观调控功能必须改善其赖以发挥作用的经济运行环境并加强两者之间的协调。     

Using pre-EMU money market rates to assess monetary policy in the euro area

This note addresses the problems arising when using national pre-EMU interest rate data in the estimation of monetary policy reaction functions for the euro area. We provide evidence that failing to adjust for interest rate risk premia leads to an overestimation of the response of monetary policy both to inflationary pressures and to the output gap. A method for adjusting pre-EMU interest rate data for risk premia is proposed.     

Determinacy, stock market dynamics and monetary policy inertia

We study equilibrium determinacy in a New-Keynesian model where the Central Bank responds to asset prices growth. Unlike Taylor-type rules that react to asset prices, the proposed alternative does not harm dynamic stability and in certain cases promotes determinacy by inducing interest-rate inertia.     

Asymmetric effects of monetary policy shocks on economic performance: empirical evidence from Turkey

This study investigates the asymmetric effects of monetary policy shocks on the macroeconomic variables of exchange rate, output and inflation for an emerging economy ? Turkey ? by using monthly data between 1990 and 2014. We employ the innovative nonlinear vector autoregressive model of Kilian and Vigfusson (2011), which allows us to observe the effect of different stances (tight or loose) and different sizes (small or large) of monetary policy actions. Our empirical evidence reveals that tight monetary policy, which, in this case, is captured with a positive shock to interest rate, decreases exchange rate, output and prices, as economic theory suggests. Loose monetary policy, which is captured with a negative shock to interest rate, has the opposite effect on these variables. However, the effects of loose monetary policy are weaker than the effects of tight monetary policy because loose monetary policy shocks are less effective than tight monetary policy shocks. Moreover, as the magnitude of a shock increases, the difference between the effects of tight and loose monetary policy policies also increases.     

Comparing monetary policy reaction functions: ECB versus Bundesbank

This paper compares the European Central Bank’s (ECB) conduct of monetary policy with that of the Bundesbank. Estimated monetary policy reaction functions show that the ECB reacts similarly to expected inflation but significantly stronger to the output gap than the Bundesbank did. Theoretical considerations suggest that this stronger response to the output gap may rather be due to a higher interest rate sensitivity of the German output gap than to a higher weight given to output stabilisation in the objective function of the ECB. Counterfactual simulations based on the estimated interest rate reaction functions reveal that German interest rates would not have been lower under a hypothetical Bundesbank regime after 1999. However, this conclusion crucially depends on the assumption of an unchanged long-run real interest rate for the EMU period and is reversed when the Bundesbank reaction function is adjusted for the lower long-run real interest rate estimated for the ECB regime.

Labor immobility and the transmission mechanism of monetary policy in a monetary union

It is believed that a common monetary policy in a monetary union will have identical effects on different countries as long as these countries have identical fundamentals. We show that, when there is specialization in production, the terms of trade react to the shock. The transmission mechanism of a monetary shock has in this case an additional channel, the terms of trade. This is the case even if state contingent assets can be traded across countries. For a reasonable parametrization, the differential on the transmission across countries is quantitatively significant when compared with the effect on the union's aggregates. Monetary shocks create cycles with higher volatility in “poor” countries than in “richer” ones.     

Tax multipliers and monetary policy: Evidence from a threshold model

Romer and Romer (2010) use the narrative record to generate a time series of exogenous shocks to fiscal policy. They report a tax multiplier of 3.0. We extend their analysis and allow for nonlinearities between their shocks and the effects on output by estimating a threshold regression model. Using Hansen’s (1997) procedure, we find the best fitting threshold is changes in the federal fund rate with a delay of two quarters. Moreover, we find that the tax multiplier is approximately 4.3 if accompanied by an accommodative monetary policy and approximately 1.2 under tight monetary policy.     

Even more on monetary policy in a small open economy

It is well known that in a small open economy with full capital mobility and a fixed exchange rate, monetary policy is ineffective in influencing real output (e.g. the works of Fleming [Int. Monetary Fund Staff Pap. 9 (1962) 369.] and Mundell [Can. J. Econ. Polit. Sci. 29 (1963) 475.]). However, Wu [Int. Rev. Econ. Finance 8 (1999) 223.] finds that when the credit channel is added to this model, monetary policy can have real effects under a fixed exchange rate system. This conclusion hinges on the assumption that open market operations have no effect on foreign exchange reserves of the central bank when evaluating how a change in monetary policy affects the loan market. This assumption is incorrect because under a fixed exchange rate regime, the quantity of foreign reserves becomes endogenous in the model. It is shown that when this assumption is relaxed, monetary policy is still ineffective in influencing output under a fixed exchange regime, even with an operative credit channel.     

China’s monetary policy: Quantity versus price rules

Two monetary policy rules, the money supply (quantity) rule and interest rate (price) rule, are explored for China in a dynamic stochastic general equilibrium model. The empirical results seem to indicate that the price rule is likely to be more effective in managing the macroeconomy than the quantity rule, favoring the government’s intention of liberalizing interest rates and making a more active use of the price instrument. Moreover, the economy would have experienced less fluctuations had interest rate responded more aggressively to inflation.     

The impact of Chinese monetary policy on co-movements between money and capital markets

From 2010 to 2017, with interest rate liberalization and capital market development in China, the impact of monetary policies on China’s financial markets underwent continuous evolution. Using the DCC-GARCH model, this study investigates the transmission process of monetary policies from the money market to capital markets (stock and bond markets). The results show that in the early stage the instability of the money and stock markets and the downturn in the bond market are primarily caused by the block of monetary policy transmission and the paucity of fund sources in the capital markets. Subsequently, the outbreak of the 2013 money shortage and the 2015 stock market crash are also closely related to monetary policies. In the later periods, the money and stock markets maintain a low degree of correlation for a long time, reducing the impact of destabilizing factors on the stock market. By contrast, with the advancement of interest rate reform and the optimization of bond market structure, the bond market is highly relevant to the money market. The central bank regulates the bond market more effectively using both traditional and innovative monetary policy tools.     

The monetary transmission mechanism: evidence and implications for European Monetary Union

We provide some evidence consistent with a heterogeneous credit channel of monetary policy transmission in the European Union. Using the techniques of cointegration and Error Correction Models, we have shown that the external finance premium is one important leading indicator of real economic activity in Germany and Italy. No evidence is found for France and the UK. Therefore, a common monetary policy implemented by the European Central Bank might be transmitted in different ways across the member countries of the monetary union, thus exacerbating existing regional disparities among the member countries.     

Some benefits of cyclical monetary policy

We show that modeling monetary circulation and cyclical activity offers insights about monetary policy that cannot be had in representative-agent models. Two fundamental ideas emerge: (i) the reflux of money back to the hands of those making current expenditures can be inefficient, and (ii) expansionary policy may accommodate more trade during high-demand seasons, at the expense of less trade in low-demand seasons and a less valuable currency. The paper provides a foundation for the optimality of a cyclical monetary policy. We thank Steve Williamson and, especially, an anonymous referee for helpful comments, as well as insightful discussions in presentations at the Cleveland Fed (2003), University of Iowa (2004), Queen’s University (2004), and more recently at the Chicago Fed, the New York Fed, the Institute of Advanced Studies, Simon Fraser University and the Universities of Vienna, British Columbia, and Victoria.     

On the welfare costs of misspecified monetary policy objectives

This paper quantifies the effects on welfare of misspecified monetary policy objectives in a stylized DSGE model. We show that using inappropriate objectives generates relatively large welfare costs. When expressed in terms of ‘consumption equivalent’ units, these costs correspond to permanent decreases in steady-state consumption of up to two percent. The latter are generated by both the inappropriate choice of weights and the omission of variables. In particular, it is costly to assume an interest-rate smoothing incentive for central bankers when it is not socially optimal to do so. Finally, a parameter uncertainty decomposition indicates that uncertainty about the properties of markup shocks gives rise to the largest welfare costs.     

Bank asset quality & monetary policy pass-through

The funding mix of European firms is weighted heavily towards bank credit, which underscores the importance of efficient pass-through of monetary policy actions to lending rates faced by firms. Euro area pass-through has shifted from being relatively homogenous to being fragmented and incomplete since the financial crisis. Distressed loan books are a crisis hangover with direct implications for profitability, hampering banks ability to supply credit and lower loan pricing in response to reductions in the policy rate. This paper presents a parsimonious model to decompose the cost of lending and highlight the role of asset quality in diminishing pass-through. Using bank-level data over the period 2008–2014, we empirically test the implications of the model. We show that a one percentage point increase in the impairment ratio lowering short run pass-through by 3%. We find that banks with severely impaired balance sheets do not adjust their loan pricing in response to changes in the policy rate at all. We derive a measure of the hidden bad loan problem, the NPL gap, which we define as the excess of non-performing loans over impaired loans. We show that it played a significant role in the fragmentation of euro area pass-through post-crisis.     

Nonlinear Phillips curve,NAIRU and monetary policy rules

The US Phillips curve is modeled with a logistic smooth transition autoregression specification that allows various nonlinear shapes. Using this, the paper derives model-consistent estimates of the NAIRU. The NAIRU is defined as the level of unemployment rate that would correspond to a forecast of no inflation changes over the policy horizon. This paper also investigates the implications of nonlinearities in the Phillips curve for deriving optimal monetary policy rules. The optimal policy rule for interest rates and implied sacrifice ratios are found to be nonlinear as well.      

Credibility and commitment of monetary policy in open economies

We study the delegation of monetary policy to independent central bankers in a two-country world with monetary spillovers. It is shown that, under the hypotheses of imperfect commitment and private information, the equilibrium degree of commitment depends on the correlation structure of the shocks hitting the economies. When the correlation is negative (as when the variance of output depends mainly on shocks to the terms of trade) there is strategic complementarity in the degree of commitment in the two countries. When the correlation is positive (common technological or demand shocks) there is strategic substitutability. In this latter case, the degree of commitment is shown to be increasing in the correlation among shocks. Common components in the international business cycle have been shown in several studies to be relatively more relevant in developed countries. Therefore, our results may contribute to explaining why the institutional solution to the inflationary bias has been adopted in the most advanced countries.     

货币政策与财政政策的区域产业结构调整效应比较

本文运用1978—2007年东、中、西部的面板数据分析。货币政策和财政政策是否具有区域产业结构调整效应结果显示:第一,财政政策具有产业结构调整效应,而货币政策的产业结构调整效应并不明显。第二,货币政策在对第一和第三产业的效应方面强于财政政策,而财政政策则在对第二产业的效应方面具有优势。第三,货币政策和财政政策对三次产业的效应都存在比较明显的区域效应。第四,在东部地区货币政策和财政政策对第一产业和第二产业的效应相差非常悬殊,而对第三产业的效应则集中在高位;在中部地区货币政策和财政政策对第二产业的效应集中在高位;在西部地区货币政策对第一产业的效应集中在高位,而财政政策对第一产业的效应则集中在低位。