Valérie Mignon

On the Influence of Oil Prices on Economic Activity and Other Macroeconomic and Financial Variables

The aim of this paper is to investigate the links between oil prices and various macroeconomic and financial variables for a large set of countries, including both oil-importing and oil-exporting countries. Both short-run and long-run interactions are analysed through the implementation of Granger-causality tests, evaluation of cross correlations between the cyclical components of the series in order to identify lead/lag relationships and cointegration analysis. Our results highlight the existence of various relationships between oil prices and macroeconomic variables and, especially, an important link between oil and share prices on the short run. Turning to the long run, numerous long-term relationships are detected, the Granger-causality generally running from oil prices to the other variables. An important conclusion is relating to the key role played by the oil market on stock markets.

Currency Misalignments and Growth: A New Look using Nonlinear Panel Data methods

The aim of this article is to investigate the link between currency misalignments and economic growth. Relying on panel cointegration techniques, we calculate Real Exchange Rate (RER) misalignments as deviations of actual RERs from their equilibrium values for a set of advanced and emerging economies. Estimating Panel Smooth Transition Regression (PSTR) models, we show that RER misalignments have a differentiated impact on economic growth depending on their sign: whereas overvaluations negatively affect economic growth, RER undervaluations significantly enhance it. This result indicates that undervaluations may drive the exchange rate to a level that encourages exports and promotes growth.

On Currency Misalignments within the Euro Area

Although nominal parities have been completely fixed within the euro area since the launch of the single currency, real effective exchange rates have continued to vary under the effect of inflation disparities, exhibiting a strong appreciation in the peripheral countries. In this paper, we assess real exchange rate misalignments for euro area countries by using a Behavioral Equilibrium Exchange Rate (BEER) approach on the period 1980-2010. The results show that the peripheral member countries have been suffering from increasingly overvalued exchange rates since the mid-2000s, as their real appreciation has not stemmed from improving fundamentals in terms of productivity or external position. In addition, currency misalignments have been increased on average for all euro area countries since monetary union, while becoming more persistent. More worryingly, our findings highlight different patterns across members, as misalignments have been larger and more persistent in peripheral countries than in core countries. (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item.) (This abstract was borrowed from another version of this item (This abstract was borrowed from another version of this item.)

Recent developments in nonlinear cointegration with applications to macroeconomics and finance

List of Figures. List of Tables. Preface. Acknowledgments. 1. Introduction. 2. Are the unit-root tests adequate for nonlinear models? 3. Nonlinear measures of persistence in time series. 4. Nonlinear equilibration, cointegration and NEC models. 5. Asymmetric and threshold nonlinear error-correction models. References. Index.

Does Euro or Dollar Pegging Impact the Real Exchange Rate? The Case of Oil and Commodity Currencies

The aim of this paper is to investigate the equilibrium exchange rates for commodity and oil currencies as well as the discrepancies of their observed exchange rates to these equilibriums. To this end, first, we estimate a long‐term relationship between the real effective exchange rate and economic fundamentals, including the commodity terms of trade. The estimation relies on panel cointegration techniques and covers annual data from 1980 to 2007. Our results show that real exchange rates co‐move with commodity prices in the long run and respond to oil price somewhat less than to commodity prices. Second, we assess the degree of misalignment of these currencies, as the gap between their observed exchange rate and the estimated equilibrium exchange rate. We show that these misalignments are not significantly related to the exchange rate regimes adopted by the countries, either pegged or floating. However, for pegged currencies, the size of misalignments significantly depends on the anchor currency, either the euro or the dollar. A comparison of misalignments of pegged commodity and oil currencies across different periods confirms these results: during periods of dollar (euro) overvaluation, currencies pegged to the dollar (euro) tend to be overvalued; the reverse being true when the dollar (euro) is undervalued. Consequently, pegged currencies are often driven away from their equilibria by wild fluctuations in the key currencies, on which they are anchored.

ROBUST ESTIMATIONS OF EQUILIBRIUM EXCHANGE RATES WITHIN THE G20: A PANEL BEER APPROACH

This paper is concerned with the robustness of equilibrium exchange rate estimations based on the BEER approach for a set of both industrial and emerging countries. The robustness is studied in four directions, successively. First, we investigate the impact of using alternative proxies for relative productivity. Second, we analyze the impact of estimating the equilibrium equation on one single panel covering G20 countries, or separately for G7 and non-G7 countries. Third, we measure the influence of the choice of the numeraire on the derivation of bilateral equilibrium rates. Finally, we study the temporal robustness of the estimations by dropping one or 2 years from the estimation period. Our main conclusion is that BEER estimations are quite robust to these successive tests, although at one point of time misalignments can differ by several percentage points depending on the methodology. The choice of the productivity proxy is the most sensible one, followed by the country sample. In contrast, the choice of the numeraire and the time sample have a relatively limited impact on estimated misalignments.

Persistent misalignments of the European exchange rates: some evidence from non-linear cointegration

The asymmetric and persistent adjustment of the European real exchange rates is investigated using the framework of non-linear cointegration. The episodes of slow mean-reversion dynamics over the period from 1979 to 1999 are explained. A test of unit root against STAR cointegration is proposed and some complete estimations and stochastic simulations of ESTAR models are presented. The presence of effective non-linear adjustment during the moving of the currencies to their long-run fundamental equilibrium exchange rate value is discussed.

On the Complementarity of Equilibrium Exchange‐Rate Approaches

Based on a simple, stock–flow adjustment framework, we show that existing concepts of equilibrium exchange rates can be viewed as realizations of the same model at different time horizons. We then compare fundamental and behavioral estimations of equilibrium exchange rates based on the same, econometric modeling of the net foreign asset position in the long run, for a panel of 15 countries over the 1980–2005 period. These estimations suggest that, although more robust to alternative assumptions, the BEER approach may rely on excessive confidence on past behaviors in terms of portfolio choices. Symmetrically, FEERs may underestimate the plasticity of international capital markets because they focus on the adjustment of the trade balance.

Measuring the Effects of Oil Prices on China's Economy: A Factor-Augmented Vector Autoregressive Approach

The aim of this paper is to investigate the impacts of oil prices on the Chinese economy. To this end, we rely on the factor-augmented vector autoregressive methodology, which allows us to evaluate the response of various macroeconomic variables to an oil price shock. Our results suggest that an oil price shock leads to: (i) a contemporaneous increase in consumer and producer price indexes, inducing a rise in interest rates; (ii) a delayed negative impact on GDP, investment and consumption; and (iii) a postponed increase in coal and power prices. Copyright 2009 The Authors. Journal compilation 2009 Blackwell Publishing Asia Pty Ltd

Business cycles asymmetry and monetary policy: a further investigation using MRSTAR models

This paper investigates the asymmetric effects of monetary shocks when the impact of monetary policy on real activity works through state-dependent variables. We use a nonlinear model, the multiple regime smooth transition autoregressive model, that allows the effects of shocks to vary across the business cycles when monetary innovations modify both the endogenous and state variables. Our impulse response functions show a history-dependence property. Indeed, hitting the economy at a given time induces persistence and asymmetric responses across histories and shocks. The empirical application concerns the US over the period 1975:1–1998:2.