Impacts of Monetary, Fiscal and Exchange Rate Policies on Output in China: A Var Approach

Applying the VAR model and using the interest rate as a monetary policy variable, we find that in the long run, output in China responds negatively to a shock to the interest rate, the real exchange rate, government debt, or the inflation rate, and it reacts positively to a shock to government deficits or lagged own output. When real M2 is chosen as a monetary policy variable, long-term output in China responds positively to a shock to real M2 or lagged own output, and it reacts negatively to a shock to the real exchange rate, government debt, or government deficits. Its response to a shock to the inflation rate is negative when government debt is used and is positive when government deficits are considered. In the short run, fiscal policy is more important than monetary policy in three out of four cases. In the long run, monetary policy is more influential than fiscal policy in three out of four cases. Therefore, the government may consider conducting monetary and fiscal policies differently in the short run and long run. The government needs to be cautious in pursuing deficit spending as its long-term impacts depend on the monetary variable employed. The policy of maintaining a relatively stable exchange rate is appropriate as the depreciation of the Yuan may hurt the economy in the short run.JEL Classifications: E5, F4, H6     

Optimal monetary policy under incomplete markets and aggregate uncertainty: A long-run perspective

This paper examines the role of monetary policy in an environment with aggregate risk and incomplete markets. In a two-period overlapping-generations model with aggregate uncertainty, optimal monetary policy attains the ex-ante Pareto optimal allocation. This policy aims to stabilize the savings rate in the economy by changing real returns of nominal bonds via variation in expected inflation. Optimal expected inflation is procylical and on average higher than without uncertainty. Simple inflation targeting rules closely approximate the optimal monetary policy.     

通货膨胀背景下的中国经济增长

当前我国物价水平仍然较高,与改革开放以来的前几次通货膨胀有所类似.本次通货膨胀的原因也可归结为中国传统增长模式中常出现的“两难困境”,即长期以来,中国经济增长过度依赖于政府投资,银行信贷与货币的发放难以受到控制,经济高增长的同时始终存在着高通货膨胀的风险,而高通货膨胀所带来的企业生产成本的上升反过来又挤压企业经营利润,从而降低经济增长率.可以预计的是,在货币政策作用空间有限的背景下,此次通货膨胀的压力将持续一段时间.能否处理好总量和结构、抑制通货膨胀和促进经济增长的关系,关键取决于货币政策与财政政策的有机配合.     

On the long-run relationship between inflation and output in a spatial overlapping generations model

The paper builds a model that features spatial differentiation of markets, and then uses it to study, first, the relationship between inflation and the steady-state level of output, and second, the relationship between inflation and the steady-state distribution of output across the economy. A steady-state of the model entails a stationary distribution of money across the locations of the economy. With all else held fixed, a change in the rate of money-growth induces a change in the distribution of money, which leads to a change in labour supply and production throughout the economy. Thus the distribution of money provides a channel through which a change in monetary policy affects real economic activity.     

The unique dollarization case of Lebanon

We perform a thorough analysis of the unique dollarization case of Lebanon, a heavily dollarized economy with recurring public deficits and monetary financing of the public debt, together with contained inflation and a de facto fixed exchange rate lasting for more than 20 years. What makes Lebanon’s case specific is the high level of foreign currency liquidity in the hands of the banking system due to the abundant capital inflows in the last three decades, and the high levels of the central bank’s gross international reserves, contrasting with its low and sometimes negative levels of net international reserves. We shed light on a number of areas that have so far been unexplored in international finance and monetary economics, mainly the difference between gross and net international reserves and their relative fiscal costs, together with a synthetic classification of sterilization techniques. We explain the monetary “freezing” mechanism that helped contain inflation in Lebanon, despite the monetary financing of the country’s recurring public deficits. We also assess the results of Lebanon’s monetary and exchange rate policy in the last two decades, and make a number of policy recommendations in light of previous studies.     

Monetary policy with interest on reserves

I analyze monetary policy with interest on reserves and a large balance sheet. I show that conventional theories do not determine inflation in this regime, so I base the analysis on the fiscal theory of the price level. I find that monetary policy can peg the nominal rate, and determine expected inflation. With sticky prices, monetary policy can also affect real interest rates and output, though higher interest rates raise output and then inflation. The conventional sign requires a coordinated fiscal–monetary policy contraction. I show how conventional new-Keynesian models also imply strong monetary–fiscal policy coordination to obtain the usual signs. I address theoretical controversies. A concluding section places our current regime in a broader historical context, and opines on how optimal fiscal and monetary policy will evolve in the new regime.     

Monetary policy in a small open economy with fixed exchange rate: The case of Macedonia

This paper empirically applies the New Keynesian model for monetary policy analysis in a small open economy with a fixed exchange rate. Official reserves are included in the interest rate rule to account for the constraint that these impose on monetary policy when the exchange rate is fixed. Also, the foreign interest rate is included in order to reflect the necessity of following the foreign monetary policy. The model is applied to Macedonian data from the period 1997 to 2011. In general, results indicate that monetary policy has been focused on domestic objectives during this period, despite the fixed currency. In addition, there seem to have been significant differences in the conduct of the monetary policy in the first and second half of this period. The response to inflation has been more aggressive in the earlier period, at a time when reserves appear less important, while the output gap is found to be important only in the latter period, possibly due to the stronger monetary policy transmission. Finally, results indicate that the monetary policy has likely moved from adaptive in the first period to rational in the second period.     

Oil exports and the Iranian economy

This paper presents an error-correcting macroeconometric model for the Iranian economy estimated using a new quarterly data set over the period 1979Q1–2006Q4. It builds on a recent paper by the authors, Esfahani, Mohaddes, and Pesaran (in press), which develops a theoretical long-run growth model for major oil exporting economies. The core variables included in this paper are real output, real money balances, inflation, exchange rate, oil exports, and foreign real output, although the role of investment and consumption are also analysed in a sub-model. The paper finds clear evidence for the existence of two long-run relations: an output equation as predicted by the theory and a standard real money demand equation with inflation acting as a proxy for the (missing) market interest rate. The results show that real output in the long run is influenced by oil exports and foreign output. However, it is also found that inflation has a significant negative long-run effect on real GDP, which is suggestive of economic inefficiencies and is matched by a negative association between inflation and the investment–output ratio. Finally, the results of impulse responses show that the Iranian economy adjusts quite quickly to the shocks in foreign output and oil exports, which could be partly due to the relatively underdeveloped nature of Iran's financial markets.     

危机后发达国家的非传统货币政策研究

次贷危机爆发以后,各国纷纷实行非传统的货币政策来刺激经济。自2009年下半年以来,随着一些国家的经济状况开始恢复,人们开始担心通货膨胀的出现,因此研究非传统货币政策何时退出就成为当前各国宏观经济保持稳定的一个重要任务。发达国家实行非传统货币政策的原因在于传统的货币政策传导机制,即从市场基准利率向短期利率和长期利率的传导受阻。因此非传统货币政策实施的目的在于降低短期利率预期和风险溢价,同时提高通胀预期,降低长期实际利率,最终起到刺激实体经济的作用。文章以美国为例,考察了美国金融指标、通胀指标和宏观经济指标,得出结论:传统的货币政策传导机制的恢复还未得到充分的确认。另外,由于欧洲债务危机的出现给全球经济复苏蒙上阴影,因此全面退出非传统货币政策尚不具备条件。但是在全球化时代,寻求大国之间退出策略的合作和协调是十分必要的。     

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.     

Policy uncertainty and aggregate fluctuations

This paper estimates the impact on the US economy of four types of uncertainty about (i) government spending, (ii) tax changes, (iii) public debt, and (iv) monetary policy. Uncertainty about government debt has a large and persistent effect on output, consumption, investment, consumer confidence, and business confidence. Uncertainty about tax changes also has detrimental consequences for real activity but the effect of spending and monetary policy uncertainty appears to be small. About 25% of output fluctuations are accounted for by policy uncertainty, with government debt making the largest contribution at longer horizons.     

Robust monetary policy in a small open economy

We study how a central bank in a small open economy should conduct monetary policy if it fears that its model is misspecified. Using a new-Keynesian model of a small open economy, we solve analytically for the optimal robust policy rule and the equilibrium dynamics, and we separately analyze the consequences of central bank robustness against misspecification concerning the determination of inflation, output, and the exchange rate. We show that an increase in the preference for robustness makes the central bank respond more aggressively or more cautiously to shocks, depending on the type of shock and the source of misspecification.     

2010年影响我国货币政策走向分析

今年以来,在宽松货币政策的刺激下,我国实体经济呈现出良好的增长势头。但是,我国的货币供给高位和资产价格爬升也已经显露无遗,股市和楼市泡沫经济现象明显,国内通胀阴影笼罩不散。我国的货币政策如何调控现行经济走向是个值得深思的问题。     

Optimal interest rate stabilization in a basic sticky-price model

This paper studies optimal monetary policy with the nominal interest rate as the single policy instrument. Firms set prices in a staggered way without indexation and real money balances contribute separately to households’ utility. The optimal deterministic steady state under commitment is the Friedman rule—even if the importance assigned to the utility of money is small relative to consumption and leisure. We approximate the model around the optimal steady state as the long-run policy target. Optimal monetary policy is characterized by stabilization of the nominal interest rate instead of inflation stabilization as the predominant principle.     

Monetary policy,housing rents,and inflation dynamics

In this paper we study the effect of monetary policy shocks on housing rents. Our main finding is that, in contrast to house prices, housing rents increase in response to contractionary monetary policy shocks. We also find that, after a contractionary monetary policy shock, rental vacancies and the homeownership rate decline. This combination of results suggests that monetary policy may affect housing tenure decisions (own versus rent). In addition, we show that, with the exception of the shelter component, all other main components of the consumer price index (CPI) either decline in response to a contractionary monetary policy shock or are not responsive. These findings motivated us to study the statistical properties of alternative measures of inflation that exclude the shelter component. We find that measures of inflation that exclude shelter have most of the statistical properties of the widely used measures of inflation, such as the CPI and the price index for personal consumption expenditures, but have higher standard deviations and react more to monetary policy shocks. Finally, we show that the response of housing rents accounts for a large proportion of the “price puzzle” found in the literature.     

Adaptive learning and monetary exchange

This paper investigates three classic questions in monetary theory: How can an intrinsically worthless asset, such as fiat money, maintain value as a medium of exchange? What are the short-run and long-run effects of a change in the money supply? What is the social cost of inflation? I answer these questions using a microfounded model of monetary exchange that replaces the rational expectations assumption with an adaptive learning rule. First, I show that monetary exchange is a robust arrangement in the sense that agents are able to learn the stationary monetary equilibrium while the non-monetary equilibrium is unstable under learning. Second, an unanticipated monetary injection has real effects in the short-run because learning the value of money takes time. In the long run, agents successfully learn the value of money, hence money is neutral. Third, under a constant money growth policy, an increase in the growth rate of money increases output in the short-run producing a short-run Phillips curve. A ten percent increase in the money growth rate has a social cost of 0.41 percent of output per year. Alternatively, a ten percent decrease in the money growth rate has a social benefit of 0.37 percent of output per year.     

Briefing Paper: The Interdependence of Fiscal and Monetary Policy under Economic and Monetary Union

This article explores the implications of Economic and Monetary Union (EMU) for the conduct of fiscal policy. Under EMU, where the European Central Bank is successful in controlling inflation, the loss of seigniorage revenues causes a potential problem for public sector deficits. To prevent the debt-income ratio from spiralling upwards, a primary budget surplus is ultimately required. EMU has usually been considered as a strong central monetary authority which forces fiscal discipline on lax national governments. But this is not the only possibility. Because the debt ratio can be reduced by surprise inflation, the price expectations of the private sector are important. Once these are taken into account, EMU can be examined in a 'game' framework in which the reputation of the authorities and the existence or otherwise of cooperation between the fiscal and monetary authorities becomes a critical factor.
The paper finds that where the authorities enjoy reputation and cooperate, a one-off reduction in public spending will lead to a permanent decline in the real interest rate and crowd in extra private spending (consumption and investment). Without reputation the cut in government spending has to be sustained. Where there is neither reputation nor cooperation, the outcome depends on the structure of the European economy and whether fiscal policy can effect the terms of trade between countries. If the terms of trade remain unchanged, the outturn is similar to the case of cooperation without reputation, but where the terms of trade can be improved in one country, there is no incentive to cut public spending. In this case the outturn is higher inflation with private spending crowded out.     

Does trade integration alter monetary policy transmission?

This paper explores the role of trade integration—or openness—for monetary policy transmission in a medium-scale new Keynesian model. Allowing for strategic complementarities in price setting, we highlight a new dimension of the exchange rate channel by which monetary policy directly impacts domestic inflation: a monetary contraction which appreciates the exchange rate lowers the local currency price of imported goods; this, in turn, induces domestic producers to lower their prices too. We pin down key parameters of the model by matching impulse responses obtained from a vector autoregression on time series for the US relative to the euro area. Our estimation procedure yields plausible parameter values and suggests a strong role for strategic complementarities. Counterfactual simulations show that openness alters monetary transmission significantly. While the contractionary effect of a monetary policy shock on inflation and output tends to increase in openness, we find that monetary policy's control over inflation increases, as the output decline which is necessary to bring about a given reduction of inflation is smaller in more open economies.     

From inflation targeting to the euro-peg: A model of monetary convergence for transition economies

This study proposes a sequence of monetary convergence to the eurozone, based on autonomous monetary policy rather than on an early application of the euro-peg. The gradual adjustment process begins with a relatively strict variant of inflation targeting, followed by flexible inflation targeting, and ends with exchange rate targeting. A model outlining the optimal mode of policy adjustment is presented. The analysis warns against a premature peg to the euro, which may instigate real currency appreciation, large capital inflows and their costly sterilization. The euro-peg can be introduced only when the candidates’ monetary authorities reach a certain degree of “foundational credibility”. The model of monetary convergence is followed by the empirical assessment of inflation targeting in the Czech Republic and Poland.     

Unconventional government debt purchases as a supplement to conventional monetary policy

In response to the Great Financial Crisis, the Federal Reserve, the Bank of England and many other central banks have adopted unconventional monetary policy instruments. We investigate if one of these, purchases of long-term government debt, could be a valuable addition to conventional short-term interest rate policy even if the main policy rate is not constrained by the zero lower bound. To do so, we add a stylised financial sector and central bank asset purchases to an otherwise standard New Keynesian DSGE model. Asset quantities matter for interest rates through a preferred habitat channel. If conventional and unconventional monetary policy instruments are coordinated appropriately then the central bank is better able to stabilise both output and inflation.