Non-fundamental exchange rate volatility and welfare

We lay out an empirical and a theoretical model to analyze the effects of non-fundamental exchange rate volatility on economic activity and welfare. In the first part of the paper, the GARCH-SVARmodel is applied to measure empirically the effect of the conditional exogenous exchange rate volatility on the conditional mean of the endogenous variables in our open economy VAR. Our results for Canada, Germany and UK indicate that the effects of exchange rate uncertainty are small empirically. In the second part, we investigate the effect of non-fundamental exchange rate volatility in a stochastic open economy model. The second order approximation method of Sims [2003] is applied to the model equilibrium conditions. We show that in a model with habit persistence, even non-fundamental exchange rate volatility that generate only small variation in the unconditional mean of the variables might induce economically significant welfare changes. JEL Classification: C32, F31, F41Exchange rate volatility, GARCH-SVAR, Second-order

Does Exchange Rate Risk Matter for Welfare?

second order solution, exchange rates

Assessing the impact of a change in the composition of public spending: a DSGE approach

Despite intense calls for safeguarding public investment in Europe, public investment expenditure, when measured in relation to GDP, has steadily fallen in the last three decades, evoking fears that economic activity may be correspondingly negatively affected. At the same time, however, public consumption in the EU-12 countries has trended up. In this paper, we provide a macroeconomic assessment of the observed change in the composition of public spending in the euro area in a medium-scale two-country dynamic stochastic general equilibrium (DSGE) model. First, we analyze the channels through which, both temporary and permanent public investment shocks generate larger fiscal multipliers than exogenous increases in public consumption. Furthermore, we quantify the negative impact of a change in fiscal stance, characterized by a permanent rise in public consumption and a permanent fall in public investment, keeping thereby the overall level of public spending constant. The key message of the paper is that calls for reversing the observed trend in the composition of public spending are well justifed. JEL Classification: F41, F42DSGE models, euro area, Public consumption, Public investment

Does Exchange Rate Risk Matter for Welfare?

Volatility in exchange rates is a prominent feature of open economies, a fact which has motivated elaborate attempts in many countries at exchange rate management. This paper analyzes quantitatively the welfare effects of exchange rate risk in a general two-country environment. It finds that the effects of uncertainty tend to be small for the types of simplified cases considered in past literature. But it identifies other cases, not considered previously, in which these effects can be significantly larger. These include habit persistence, where agents are more sensitive to risk, and also incomplete asset market structures which allow for asymmetries between countries. The latter case suggests that countries which are hosts to an international reserve currency, such as the U.S. or members of the euro zone, may accrue

An Estimated Small Open Economy Model of the Financial Accelerator

This paper develops a small open economy model in which entrepreneurs partially finance investment using foreign currency-denominated debt subject to an external finance premium. We use Bayesian estimation techniques to evaluate the importance of balance sheet-related credit market frictions for emerging market countries by incorporating the financial accelerator mechanism. We obtain a sizable value for the external finance premium, which is tightly estimated away from zero. Our results support the inclusion of the financial accelerator in an otherwise standard model that-acting through balance sheets-magnifies the impact of shocks, thereby increasing real and financial volatility. Copyright 2006, International Monetary Fund

Does Exchange Rate Variability Matter for Welfare? A Quantitative Investigation of Stabilization Policies

This paper evaluates quantitatively the potential welfare gains from monetary policy and fixed exchange rate rules in a two-country sticky-price model. The first finding is that the gains from stabilization tend to be small in the types of economic environments emphasized in recent theoretical literature. The analysis goes on to identify two types of economies in which the welfare implications of risk are larger: where agents exhibit habits, and where international asset markets exhibit asymmetry in the form of “original sin.” In the habits case, monetary policy aimed solely at inflation stabilization is optimal. But in the original sin case there are potentially large welfare gains from also eliminating exchange rate volatility.exchange rate risk, second order approximation

The Gains From International Monetary Cooperation Revisited

This paper examines the issue of whether countries can improve their welfare by coordinating macroeconomic policies. The main purpose is to compute the gains from international monetary cooperation as the difference between the steady state consumption levels associated with the Nash and the cooperative outcomes of the game in which monetary authorities pursue active monetary policy. A numerical second-order approximation makes the solution of the model possible. Contrary to Obstfeld and Rogoff (2002), who claim that the gains from international cooperation in monetary policy are negligible, the paper finds that they could be very significant and reach as high as 2.2 percent of steady state consumption. This suggests that individual countries could experience significant welfare losses if they concentrate only on domestic stabilization policies.International cooperation;monetary policy, monetary authorities, inflation, money growth, optimal monetary policy, real money, monetary economics, money balances, monetary cooperation, money supply, international monetary cooperation, monetary policies, price stability, money demand, monetary fund, international monetary policy, monetary policy rules, aggregate demand, domestic monetary policy, monetary balances, terms of trade, national monetary policies, money supplies, nominal variables, domestic monetary policies, price level, price of goods, wage inflation, rate of inflation, central bank, monetary coordination, inflation stabilization, nominal interest rates, nominal interest rate, real wages, rational expectations, real exchange rates

Much Ado About Nothing? Estimating the Impact of a U.S. Slowdownon Thai Growth

External demand was the main driver of growth in Thailand in 2006 and 2007. However, WEO projections indicate moderating foreign demand in 2008, with U.S. growth being revised downwards to reflect the turmoil in housing and credit markets, and high oil prices. While the share of Thai exports to the US has fallen in recent years, the US remains Thailand''s largest export destination. We use a small structural model and Bayesian estimation to assess the possible impact of a U.S. slowdown on Thai growth. We find that a 1 percent slowdown in U.S. growth in 2008-relative to the baseline forecast-could have an upper-bound impact on Thai GDP growth of 0.9 percentage points.Thailand;Economic growth;Economic forecasting;monetary policy, inflation, confidence intervals, correlation, equation, rational expectations, equations, real interest rate, nominal interest rate, general equilibrium model, parameter estimation, bayesian analysis, probabilities, inflation rate, inflation targeting, markov chain, probability, lower inflation, adaptive expectations, econometrics, random walk, parameter value, curve equation, standard error, computation, real interest rates, monetary economics, forecasting, optimization, estimation technique, rate of inflation, inflationary expectations