Exchange Rate Regimes and Welfare Losses from Foreign Crises: The Impact of the US Financial Crisis on Mexico

We modify the Gali and Monacelli small open economy dynamic stochastic general equilibrium (DSGE) model, calibrate to Mexican data and simulate the impact of the financial crisis on Mexico, under floating and counter factual fixed exchange rates. The floating exchange rate ameliorates welfare losses for Mexico. They are greater under fixed exchange rates because the return paths to equilibrium are more volatile (higher variance) and output, consumption and employment impulse response functions (IRFs) overshoot. Monetary policy, inflation targeting with floating exchange rates, clearly reduced the welfare costs vis‐à‐vis other counter factual policies including consumer price index‐based Taylor rule, domestic inflation Taylor rule and fixed exchange rates.     

Openness and the case for flexible exchange rates

Models of stabilization in open economy traditionally emphasize the role of exchange rates as a substitute for nominal price flexibility in fostering relative price adjustment. This view has been recently criticized on the ground that, to the extent that prices are sticky in local currency, the exchange rate does not play the stabilizing role envisioned by the received wisdom. An important question is whether, for this very reason, stabilization policies should limit exchange rate movements, or even eliminate them altogether. In this paper, I re-assess this issue by extending the [Corsetti Giancarlo, and Paolo Pesenti. 2001. Welfare and Macroeconomic Interdependence. Quarterly Journal of Economics 116 (2), 421–446.] model to allow for home bias in consumption—so that I can exploit the advantages of closed-form solutions. While this extension leaves most properties of the model unaffected, home bias implies that the real exchange rate in an efficient equilibrium is not constant, but fluctuates with the terms of trade. The weight that monetary authorities optimally place on stabilizing domestic marginal costs is increasing in home bias: with asymmetric shocks, fixed exchange rates are incompatible with efficient monetary rules. Yet, the adverse welfare consequences of exchange rate movements constrain the optimal intensity of monetary responses to domestic shocks. Openness matters: in our specification each country produces an equal share of the world value added; the lower the import content of consumption, the higher the exchange rate volatility implied by optimal stabilization rules. In relatively closed economy, optimal monetary rules tend to converge, regardless of the nature of nominal rigidities in the exports market.     

Trade prices and supply in the UK economy

Current account imbalances are a major source of instability in the world monetary and trading system. Measures to correct these imbalances have largely involved adjustments to exchange rates. In the international trade literature, when the current account is in deficit, the Marshall-Lerner condition is sufficient for a successful devaluation. However, this partial equilibrium condition — apart from being based on the assumption that supply elasticities are infinite — abstracts from how the domestic economy responds to the change in relative prices. In this paper we develop a model of price and output determination in an open economy with imperpectly competitive markets, and draw a distinction between goods which are exported and those which are supplied to the domestic market. This means that we have to determine jointly both export prices and the domestic price of house sales. We show that as long as there is no money illusion in the labour market a fall in the nominal exchange rate raises domestic and export prices proportionally and leaves trade volumes unaffected. However, shifts in domestic absorption relative to overseas demand — by changing relative prices — cause shifts in the relative supply of exports and domestically sold goods and affect the trade balance. Thus fiscal and monetary measures directed towards reducing domestic absorption are more likely to be successful in correcting current account imbalances than exchange rate depreciation.     

EXCHANGE RATE REGIME AND MONETARY POLICY INDEPENDENCE IN EAST ASIA

Abstract.  This paper investigates whether the choice of exchange rate regimes influences the sensitivity of domestic interest rates to international interest rates. We empirically analyse this issue in the context of East Asian economies by employing a regime switching model. We find that the sensitivity of local interest rates to international interest rates declined in Korea and Thailand after they adopted floating exchange rate regimes. We also find that Japan, with a floating exchange regime, has greater independence in monetary policy than a pegged economy such as Hong Kong. These empirical findings suggest that exchange rate flexibility provides greater monetary independence.     

Stabilizations, crises and the “exit” problem – A theoretical model

Exchange-rate-based stabilizations, even if successful, usually lack credibility initially. This is reflected in high (ex post) real interest rates and some degree of real exchange rate appreciation. Empirical observation suggests that wage inflation declines smoothly over time whilst interest rates are volatile. Our model captures these features and provides insights into: the eruption of exchange rate crises after a long period of apparently successful stabilization; the potential advantages of a heterodox approach; when to delay a stabilization attempt; and the optimal date for “exit” to a floating exchange rate.     

Monetary transmission mechanism in Turkey under free float using a small-scale macroeconomic model

This study analyzes the monetary transmission mechanism in the Turkish economy following the switch to free float under informal inflation targeting scheme in the aftermath of the February 2001 crisis. A small-scale macroeconomic model is simulated using equations for output gap, exchange rate, sub-items of inflation, short-term policy rate, government borrowing rate, “Embi+ Turkey” and inflation expectations. The preliminary results indicate that, despite some slight departures, both static and dynamic simulations capture the dynamics of the fundamental economic variables. The results also show that at a time of weak domestic demand, output gap has been seemingly less significant in determining inflation. Furthermore, risk premium as measured by “Embi+ Turkey” has a high explanatory power in shaping government borrowing rate and exchange rate. Finally, forward-looking component of inflation has been effective in determining non-administered prices.     

FEER for the CFA franc

We investigate the behaviour of the real effective exchange rates (REER) of the two CFA franc zone monetary unions?–?CEMAC and WAEMU?–?vis-à-vis their long-run equilibrium paths. A reduced form of the Edwards’ (1989) fundamentals equilibrium exchange rate (FEER) model is estimated using the Johansen's (1995) cointegration methodology, and equilibrium paths and associated misalignments are derived for the period 1970 to 2005. Our results suggest that, for both CEMAC and WAEMU, the fundamentals account for most of the exchange rates’ fluctuation: increases in the terms-of-trade, government consumption and productivity tend to appreciate the exchange rate, while increases in investment and openness tend to depreciate it. At end of 2005, we find no evidence that either the CEMAC or WAEMU REERs were significantly over-valued, which suggests that no exchange rate action is currently needed. Our analysis also reveals significant differences in the fundamentals’ marginal impact, and speed of reversion to equilibrium following a shock, which may raise questions about the desirability of maintaining the same parity for both monetary unions.     

The international effects of government spending composition

This paper incorporates a distinction between spending for government employment and spending for non-wage government consumption in a ‘new open economy macroeconomics’ model. Our results show that a permanent reduction in public employment in one country increases relative private consumption and appreciates the domestic exchange rate. We also compare announced reductions in domestic government employment and consumption, showing that these two policies have the same qualitative effects. When the reduction in public employment is used to finance increased government non-wage spending, the analytical results of the model are ambiguous, but a numerical analysis shows that relative consumption increases for a reasonable parameterization.     

Market power of firms and exchange-rate fluctuations

This paper explores the potential of firms to restrict industry outputs (market power) in oligopolistically organized markets where domestic firms compete with foreign ones. Within a stochastic price-setting supergame framework, market power is shown to be lower in general with flexible exchange rates for the following reasons. (i) The conditions that the fully collusive outcome—oligopolists maximizing joint profits — is sustainable in equilibrium become stronger if the exchange rate fluctuates, provided that fluctuations are sufficiently small. (ii) Even if full collusion can be sustained, industry outputs will be higher on the average with flexible than with fixed exchange rates.     

Integral stabilization policy and flexible exchange rates

Summary Under a floating exchange rate system, exchange rates influence economic activity through their effect on the trade balance. Nevertheless, exchange rate movementsper se do not prevent integral fiscal and monetary policies from achieving a target for domestic economic activity²⁴. At the same time, since the exchange rate continuously moves to preserve asset market equilibrium, the (potential) balance of payments may not be equilibrated when the authorities have attained their internal target. In that event, the continued movement in exchange rates may produce cycles in economic activity which in turn lead to exchange rate oscillations. Finally, the reader is warned that the introduction of inside and outside lags into the system may produce additional oscillatory behavior or even explosiveness, as Phillips demonstrated for the closed economy. However, these new possibilities would arise independently of the floating exchange rate system and could not be attributed to it.     

Estimating an equilibrium exchange rate for the dollar and other key currencies

In this paper, we adapt the concept of fundamental equilibrium exchange rates ‘FEER’ in a complete model approach. We use it to determine the likely paths of the Dollar and other key currencies. The FEER is the (real) exchange rate that is consistent with internal balance and sustainable external balances. Here we examine the composition of a Dollar adjustment and hence the extent to which a FEER (for the US) depends on factors or rigidities elsewhere in the world, as well as at home. We find, the US still needs to accept an adjustment in her real exchange rate if the increase in her foreign liabilities is to come to an end. However, counterpart adjustments also have to be made in Canada, Mexico, and some Asian economies if this policy is to be successful. We also show that productivity growth differentials may act as a substitute for depreciation, and this provides an explanation for the failure of the dollar to depreciate in the 1990s.     

Is increased agricultural protection beneficial for South Africa?

Using a top down computable general equilibrium microsimulation model of South Africa, this paper explores the impact on household well being of an increase in agricultural protection. This issue is of broader relevance to developing countries that may be contemplating the use of World Trade Organisation permissible trade barriers so as to achieve a domestic policy objective. The model predicts that gross domestic product would be unaffected while real private consumption falls. The real exchange rate appreciates while unemployment levels are unaffected. Food, other manufactures, trade and hotels are the clear losers. All other industries experience small positive gains or no impact on their output. The impact on households depends on their factor endowments and their consumption patterns. The impacts on poverty reduction are very small. Poverty indicators increase more in urban areas than in rural areas. Poverty increases slightly more among Asian households, followed by White and then Coloured households. African households experience small declines in poverty.     

Explaining ERM realignments: Insights from optimising models of currency crises

This paper attempts to provide empirical evidence on the determinants of the realignments throughout the European exchange rate mechanism (ERM). Motivated by the implications of optimising currency crisis models, we relate the probability of “crises” to a set of macroeconomic fundamentals. By using a conditional binominal logit model we show that regime switches are strongly influenced by movements in industrial production, foreign interest rates, competitiveness and imports as well as in foreign exchange reserves. These findings are consistent with the general propositions of recent currency crises models.     

How firm capabilities affect who benefits from foreign technology

We explore how firm capabilities affect the diffusion of technology brought with foreign direct investment (FDI). Using a panel dataset on Indonesian manufacturers from 1988 to 1996, we measure how the productivity of differing domestic firms responds to the entry of multinational competitors. We find that firms with investments in research and development and firms with highly educated employees adopt more technology from foreign entrants than others. In contrast, firms that have a small “technology gap,” meaning that they are close to the international best-practice frontier, benefit less than firms with weak prior technical competency. This finding suggests that the marginal return to new knowledge is greater for firms that have more room to “catch up” than it is for already competitive firms.     

Individual preferences and the effect of uncertainty on irreversible investment

This paper considers a relationship between investment behavior and an agent’s preferences in a stochastic one-sector growth model with irreversible investment. Further, it explores the effect of uncertainty in investment policies by using a non-expected utility function. Since uncertainty has an impact on investment policies not only through an option value but also through a risk-adjusted time preference rate in a general equilibrium framework, it is significant to distinguish the two preference parameters of the agent. While the previous partial equilibrium models with irreversible investment have exhibited a negative relationship between the desired capital stock and uncertainty, this paper implies that it is possible to generate a positive relationship for the appropriate parameters. This shows that the results of Hartman and Abel have been robust even in a general equilibrium model.     

The international wealth channel: a global error-correcting analysis

This article investigates empirically whether shocks to asset prices transmit into the trade balance through consumption and investment for a group of five of the world??s most industrialized countries. We refer to this transmission channel as the international wealth channel and estimate a GVAR model including 29 countries with quarterly data over the period 1981Q1?C2006Q4. Generalized impulse response functions show that after a negative stock price shock US and UK consumption decreases, followed by an improving trade balance. This pattern is also visible for France, but not for Germany and Japan. Stock price decreases are only associated with decreasing investment and an improving trade balance in the UK. For housing, we do find that a negative shock to UK housing prices decreases domestic investment and improves the trade balance. However, this pattern is not visible in the other countries. Finally, a domestic negative real exchange rate shock only has a significantly positive impact on the US trade balance.     

中国均衡实际有效汇率:一个总量一般均衡分析

亚洲金融危机时期中国实行事实上的盯住美元制度 ,同时亚洲各国的汇率水平进行了重新调整。本文探讨在亚洲金融危机以前及危机期间中国实际有效汇率的“均衡”水平。假定一系列不同的贸易差额 ,我们运用扩展了的Devarajan Lewis Robinson三商品一般均衡模型估计均衡实际有效汇率的不同时间路径。模型的关键要素是要有进口品和出口品价格指数的时间序列资料。鉴于这些价格指数从其他渠道无法获得 ,作者利用贸易数字构造了这些指数。研究发现在亚洲金融危机之前的 4年内中国的实际有效汇率低于均衡汇率 ,这部分地缘于外汇储备的快速累积。与事实相反 ,如果假设在此期间 ,每年不超过 1 0 %的出口收入转化为外汇储备 ,则中国的实际有效汇率将会比现在高 5%到 1 2 %     

Bi‐currency versus Single‐currency Targeting: Lessons from the Russian Experience

This paper examines how the 2005 shift in Russian exchange rate policy from US dollar (USD) single‐currency to USD–EUR (euro) bi‐currency targeting has impacted domestic interest rates. The finding show that this policy shift has disconnected Russian interest rates from US dollar‐denominated interest rates, while instead linking them to a synthetic interest rate composed of USD and EUR rates at the same proportion as that of these two currencies in the currency basket against which the ruble's exchange rate is set. The Russian experience shows that while the adoption of bi‐currency targeting may help ensure that domestic interest rates are less dependent on the monetary cycle of a single country, these rates are instead likely to reflect financial developments in all countries whose currencies are included in the currency basket. This insight is likely to be relevant for other countries that pursue basket‐targeting policies.     

How Elastic is East Asian Demand for Consumption Goods?

This paper investigates import demand in East Asia. Estimating exchange rate elasticities for countries in the region is difficult because many imports are used to produce goods for re‐export. An exchange rate appreciation that reduces East Asian exports will also reduce the demand for imported inputs that are used to produce exports. To correct for this bias this paper examines consumption imports, since these goods are intended primarily for the domestic market. Results from several specifications indicate that currency appreciations and increases in income in East Asian countries would significantly increase imports into the region.     

Country Size and Economic Fluctuations

This paper investigates the character of business cycles across large and small economies. Empirically, G-7 countries have less volatile investment, consumption, and trade balance ratios, higher correlations between domestic sacing and investment rates, and about the same correlation of the trade-balance ratio and investment ratio as 68 smaller countries. These observations are consistent with a standard one-sector two-country general equilibrium model in which the only source of heterogeneity is country size. Since many developing countries are small, these findings suggest that even absent differences in markets and instutitions, economic fluctuations would be more severe in developing countries.