UNEMPLOYMENT PERSISTENCE AND THE SUSTAINABILITY OF EXCHANGE RATE PEGS

It is commonly thought that an open economy can accommodate output shocks through either exchange rate or real sector adjustments. We formalize this notion by incorporating unemployment persistence into a two‐sided escape clause model of currency crises. We show that unemployment persistence makes a currency peg more fragile and undermines the credibility of the monetary authority in a dynamic setting. The fragility is captured by a devaluation premium in expectations that increases the average inflation rate when the currency peg is more vulnerable to ‘busts’ than ‘booms’. This interaction between macroeconomic and microeconomic rigidities suggests that a policy reform can only be consistent if it renders either exchange rates or the economy more flexible.     

A survey of the literature on the optimal peg

It is widely agreed that floating is not an appropriate exchange rate policy for most developing countries, but in a world of generalized floating the question of exchange rate policy is not resolved by deciding to peg rather than to float: it is also necessary to decide to what to peg. This is the question of the ‘optimal peg’, on which a significant literature has emerged since 1976. The present paper provides a survey of that literature. Section 2 summarizes the principal papers. Section 3 compares the objectives and rules advocated by different authors. Section 4 evaluates the alternative approaches, arguing that in general the peg should be chosen to stabilize the nominal trade-weighted effective exchange rate. Section 5 considers whether this criterion points to the SDR as a satisfactory peg.     

PUBLIC DEBT MATURITY AND CURRENCY CRISES

The theory underlying the effect of debt structure on the probability of a currency crisis and the slope of the yield curve was developed in Benigno and Missale (2004). In this paper, we provide the empirical evidence to support their model's predictions. In a dynamic panel data framework, we produce generalized method of moments estimates that give substantial support to the hypothesis that the role of short‐term debt depends on how a devaluation affects the reputation of the policymaker and the real value of public debt. In addition to the empirical analysis, we generalize the theoretical framework to allow for the presence of non‐deflatable debt and, for completeness, examine the case where the monetary authority can fully commit itself to an escape clause monetary rule.     

Real exchange rates: are they dominated by fundamental factors?

Using Bayesian model averaging, we determine which fundamental pair-wise differences suggested by the literature on optimum currency areas give the best explanation of medium-term variability of bilateral real exchange rates. The intercept in the best specification is statistically insignificant, implying that for a hypothetical pair of economies for which the differences were zero, the bilateral real exchange rate would not move. Thus, the ‘non-fundamental’ element of the medium-term real exchange rate variability is, in our sample at least, negligible on average. In other words, floating exchange rate does not in itself imply, on average, more real exchange rate variability in the medium term than an exchange rate peg.     

On the relevance of floating exchange rate policies

I study the relevance of the composition of the public debt between domestic and foreign liabilities in a standard stochastic small open-economy framework. The government issues nominal bonds of several maturities with noncontingent face value at redemption. Intervening in the exchange market to implement an adequate state-contingent path for the nominal exchange rate is an effective way for the government to prevent the economy from reaching any competitive equilibrium it wishes to rule out. Most sterilized interventions are not neutral; however, few of them are. As a consequence, the composition in question is undetermined. Hence, a floating regime may decentralize every competitive outcome, even one induced by a pegging policy. Conversely, outcomes brought forth by a floating regime can also be induced by a policy that prescribes active government intervention in the foreign currency market. Moreover, an open-market operation can be replaced by an equivalent combination of an exchange intervention plus a restructuring of the domestic debt maturity. Introducing in the model strategic behavior by the government combined with asymmetric information or lack of commitment can remove that indeterminacy. Hence, these factors seem to be the major determinants of a possible relation between floating exchange rate policies and economic outcomes.     

Limited asset market participation and the consumption‐real exchange rate anomaly

Abstract Under efficient consumption risk sharing, as assumed in standard international business cycle models, a country's aggregate consumption rises relative to foreign consumption, when the country's real exchange rate depreciates. Yet empirically, relative consumption and the real exchange rate are essentially uncorrelated. This paper shows that this ‘consumption‐real exchange rate anomaly’ can be explained by a simple model in which a subset of households trade in complete financial markets, while the remaining households lead hand‐to‐mouth (HTM) lives. HTM behaviour also generates greater volatility of the real exchange rate and of net exports, which likewise brings the model closer to the data.     

Has the ‘franc fort’ exchange rate policy affected the inflationary dynamics? Theory and new evidence

Abstract

This paper examines the impact of the ‘franc fort’ policy implemented in France from 1983 on the inflationary dynamics by means of a square root Kalman filter approach. An interesting aspect of the analysis is the evidence that the ‘franc fort’ exchange rate policy had a significant impact on the inflationary dynamics in France through its credibility effects. These results confirm the imported credibility hypothesis according to which the French authorities accelerated the disinflation process by importing the German monetary policy credibility through the ‘hard peg’ of the franc–DM exchange rate. These findings show that inflation dynamics in France began to converge significantly to that in Germany after the implementation of the ‘franc fort’ policy, making more credible the plan for the final transition to the euro. Moreover, this analysis may also reveal much about the nature of potential success of the current initiative of the new member countries now in the process of joining the EU and looking eventually to adopt the euro.     

Are Flexible Exchange Rate Regimes more Volatile? Panel GARCH Evidence for the G7 and Latin America

This paper investigates empirically the relationship between exchange rate (ER) regimes and volatility of real exchange rate depreciation (RERD), comparing the G7 and 17 Latin American (LA17) countries, during 1970–2010. We estimate a panel autoregressive model with generalized autoregressive conditional heteroskedasticity (GARCH) errors and regime‐specific effects on both the conditional mean and conditional variance. For the G7, we find that, relative to the fixed ER regime, only the freely floating regime shows higher RERD volatility; under the managed floating regime the RERD is equally volatile and under the crawling peg it is actually less volatile. Instead, in the case of the LA17, more flexible ER regimes are associated with more volatile RERD rates, with higher volatility under the managed floating regime than under the crawling peg and with extremely high volatility under the “freely falling” ER regime.     

Dynamic Analysis of the Exchange Rate Regime: Policy Implications for Emerging Countries in East Asia

This paper discusses exchange rate policies in East Asia. In particular, we explore whether actual policies that have been implemented by East Asian countries after the Asian Financial Crisis follow or deviate from theoretically “desirable” policies over the medium and long terms. On theoretical analysis, we show the relative superiority of a basket‐peg regime with the basket weight rule when compared with a floating regime implementing the interest rate rule or money supply rule. For countries that currently adopt a fixed exchange rate regime, they would be better off shifting toward either a basket‐peg or a floating regime over the medium term. A shift to a basket peg is more preferred when compared with a shift to a floating regime when the exchange rate fluctuations are large.     

Should Commodity Exporters Peg to the Export Price?

To account for the specific situation of commodity exporters, pegging to export prices (PEP) has been proposed elsewhere as an alternative to other conventional monetary regimes such as an exchange rate peg or inflation targeting. PEP is supposed to deliver automatic accommodation to terms‐of‐trade shocks, while retaining the credibility gain from a nominal anchor. This paper analyzes the PEP proposal in a dynamic general‐equilibrium model and compares it with a standard Taylor rule, consumer price index (CPI)‐level targeting and a nominal exchange rate peg. Judged by the degree of output stabilization, PEP performs very similar to CPI targeting for export demand as well as domestic demand shocks and underperforms in the case of shocks to the export price. The results suggest that PEP is not superior to conventional CPI targeting from a macroeconomic stabilization perspective.     

Currency Misalignments and Exchange Rate Regimes in Emerging and Developing Countries*

Pegged exchange rates are often pointed out as more prone to risk of overvaluation, because their real exchange rates have a tendency to appreciate. We check this assumption empirically over a large sample of emerging and developing countries, by using two databases for de facto classifications by Levy‐Yeyati and Sturzenegger (2003 ) and by Reinhart and Rogoff (2004 ). We assess currency misalignments by estimating real equilibrium exchange rates taking into account a Balassa effect and the impact of net foreign assets. Pegged currencies are shown to be more overvalued than floating ones.     

The Influence of Household Financial Debt on Monetary and Exchange Rate Policy: France and Britain compared

The structure of household financial debt may have a major effect on the ability of governments to use monetary policy as a means of influencing exchange rate values. This is illustrated by a discussion of the comparative situation of France and Britain during the 1992–93 ‘crisis’ in the European exchange rate mechanism. The large volume of floating rate household debt in the UK placed a significant limitation on the ability of the UK authorities to use monetary policy. By contrast, the lower volume of mainly fixed rate household debt in France enabled the French authorities to make full use of monetary policy as desired in the pursuit of exchange rate targets. As modern financial markets are highly volatile, governments should take policy measures to create more stable structures of household debt.     

Learning,Large Deviations,And Recurrent Currency Crises*

This article studies a version of Obstfeld's (Journal of International Economics 43 (1997), 61–77) “escape clause” model. The model is calibrated to produce three rational expectations equilibria. Two of these equilibria are E‐stable and one is unstable. Dynamics are introduced by assuming that agents must learn about the government's decision rule. It is assumed they do this using a stochastic approximation algorithm. It turns out that as a certain parameter describing the sensitivity of beliefs to new information gets small, the algorithm converges to a small noise diffusion process. The dynamics of exchange rate changes are then characterized using large deviation techniques from Freidlin and Wentzell (Random Perturbations of Dynamical Systems, Second Edition, Berlin: Springer‐Verlag, 1998). These methods describe the sense in which the limiting distribution of exchange rate changes is approximated by a two‐state Markov‐Switching process, where the two states correspond to the two E‐stable equilibria. The model is calibrated to the exchange rate histories of Argentina, Brazil, and Mexico. Currency crises in these countries resemble the predicted “escape routes” of the model. A key feature of these escape routes is that expectations of a devaluation erupt suddenly, without large contemporaneous shocks. This is consistent with evidence showing that crises are often poorly anticipated by financial markets.     

Dutch Disease in Australia: Policy Options for a Three‐Speed Economy

‘Dutch Disease’ refers to the adverse effects through real exchange rate appreciation that the mining boom can have on various export‐ and import‐competing industries. The distinction is made between the booming sector (mining), the lagging sector (exports not part of the booming sector and import‐competing goods and services) and the non‐tradeable sector. What should the government do to reduce this Dutch ‘disease’? The principal options are: do nothing, piecemeal protectionism, moderate exchange rate effects by running a fiscal surplus, combined with lowering the interest rate, and possibly establishing a sovereign wealth fund. The costs of the latter measures may be considerable.     

NOMINAL WAGE INDEXATION,QUASI‐EQUILIBRIA AND REAL WAGE DYNAMICS

In contrast to the traditional static approach to indexation, this paper analyses the dynamic consequences for real wages of the mechanism that links nominal wages to inflation. Revisiting a contribution by Dehez and Fitoussi on macroeconomic fluctuations , I analyse a monetary overlapping generations small open economy in which full indexation is interpreted as the occurrence of a dynamic ‘quasi‐equilibrium’. In the suggested framework, the nominal wage is linked to the inflation rate by a specific indexation formula whose shape relies on unions' bargaining positions. Assuming a constant peg for the real interest rate and the superneutrality of money, I show that the economy has a unique long‐run quasi‐equilibrium allocation whose stability depends only on the behaviour of the monetary authority. Moreover, I show how the operating of a ‘wage‐aspiration effect’ might lead to the persistence of involuntary unemployment.     

External debt sustainability and policy rules in a small globalized economy

The paper develops a Post Keynesian macroeconomic model which discusses the conditions that lead to an external debt crisis in a small developing economy fully integrated to global goods and financial markets. The focus is on how policy rules affect the stability of the economy. Two kinds of policy rules are discussed, namely inflation target and real exchange rate target, implemented through an interest rate operation procedure (IROP). It is argued that in both cases the evolution of the real exchange rate should be closely monitored to avoid external instability. It is also suggested that a real exchange rate target may be more effective to stabilize the economy if there is a strong tendency towards the equality of the foreign and domestic real interest rates.     

The Transfer Problem and Real Exchange Rate Overshooting in Financial Crises: The Role of the Debt Servicing Multiplier*

We develop a real model of exchange rate overshooting due to a debt servicing multiplier. Borrowers of foreign capital are bound by noncontingent contracts to pay the world rate of return following an adverse shock. This is onerous, since the marginal product of capital is less than the world rate of return and the shock causes some capital to become extra‐marginal. If the resultant debt servicing shortfall is met by taxes on workers, this reduces their demand for nontradable goods, which feeds back onto their wage, reducing their demand for nontradable goods, etc. In the short run, when extra‐marginal projects are “stuck” in the economy, the real exchange rate can overshoot. This mechanism may help to explain overshooting of exchange rates in the 1997 Asian financial crisis.     

Exchange Rate Policy and the Resources Boom*

This paper considers some policy choices posed by the prospective Australian resources boom, distinguishing between the investment boom and the export boom and between the adjustment and the non-adjustment options. With adjustment both booms are likely to lead to real appreciation, raising the ‘Dutch disease’ issues. Non-adjustment means accumulating foreign exchange reserves by preventing both nominal appreciation and inflation. It is discussed whether protection by tariffs or quotas should be lowered or raised because of the export boom. An Appendix analyzes the monetary policy implications of both the floating rate (adjustment) and the fixed rate (non-adjustment) cases.     

The East Asian Dollar Standard, Fear of Floating, and Original Sin

Before the crisis of 1997/98, the East Asian economies—except for Japan but including China—pegged their currencies to the US dollar. To avoid further turmoil, the IMF argues that these currencies should float more freely. However, the authors’ econometric estimations show that the dollar's predominant weight in East Asian currency baskets has returned to its pre‐crisis levels. By 2002, the day‐to‐day volatility of each country's exchange rate against the dollar had again become negligible. Most governments were rapidly accumulating a “war chest” of official dollar reserves, which portends that this exchange rate stabilization will come to extend over months or quarters. From the doctrine of “original sin” applied to emerging‐market economies, the authors argue that this fear of floating is entirely rational from the perspective of each individual country. And their joint pegging to the dollar benefits the East Asian dollar bloc as a whole, although Japan remains an important outlier.     

The Effect of Monetary Policy on Exchange Rates during Currency Crises: the Role of Debt,Institutions, and Financial Openness*

This paper empirically examines the effect of monetary policy on exchange rates during currency crises. We find strong evidence that raising the interest rate: (i) has larger adverse balance sheet effects and is therefore less effective in countries with high domestic corporate short‐term debt; (ii) is more credible and therefore more effective in countries with high‐quality institutions; (iii) is more credible and therefore more effective in countries with high external debt; and (iv) is less effective in countries with high capital account openness. Our results support the idea that the effect of monetary policy depends on its impact on fundamentals, as well as its credibility, as suggested in the recent theoretical literature.