5 - Does the exchange rate belong in monetary policy rules? New answers from a DSGE model with endogenous tradability and trade frictions  pp. 120-154

Does the exchange rate belong in monetary policy rules? New answers from a DSGE model with endogenous tradability and trade frictions

By Michael Kumhof, Douglas Laxton and Kanda Naknoi

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The benefits of exchange-rate flexibility lie in its ability to change the relative prices of goods in the presence of nominal rigidities. Friedman (1953) first argued that a flexible exchange-rate regime is desirable as a shock absorber, and this has been followed by a long subsequent literature. The implications for the conduct of domestic monetary policy have, however, been the subject of much debate. In the closed-economy literature, several important papers have found that welfare-optimising monetary policy results in a complete stabilisation of the domestic price level, with no trade-off between output gap stabilisation and domestic price stability. Many key contributions to the recent open-economy literature have found conditions under which these results carry over to an open economy setting, meaning specifically that there is no need for monetary policy to explicitly consider the exchange rate. However, these papers share a common set of assumptions that may be violated in practice. They include producer currency pricing, perfect exchange-rate pass-through and a lack of real rigidities in international trade. The literature has thus far concentrated on the pricing assumption, by replacing the producer currency pricing assumption with local currency pricing. It can then be shown that it becomes optimal to either have a completely fixed exchange rate, or at least to have a very significant role for the exchange rate in the monetary policy rule.The empirical evidence for the pricing assumption is a subject of much debate.

Aitken, B. , G. Hanson , and A. Harrison (1997). ‘Spillovers, foreign investment and export behavior’, Journal of International Economics, 43(1–2), 103–32.
Backus, D. , P. Kehoe , and F. Kydland (1994). ‘Dynamics of the trade balance and the terms of trade: the J-curve?’, American Economic Review, 84(1), 84–103.
Bayoumi, T. , D. Laxton , and P. Pesenti (2004). Benefits and Spillovers of Greater Competition in Europe: A Macroeconomic Assessment, ECB working papers No. 341.
Benigno, G. , and P. Benigno (2003). ‘Price stability in open economies’, Review of Economic Studies, 70, 743–64.
Bergin, P. , and R. Glick (2003). Endogenous Nontradability and Macroeconomic Implications, NBER working papers No. 9739.
Bernard, A. , and J. Jensen (2004). ‘Why some firms export’, Review of Economics and Statistics, 86(2), 561–9.
Besedes, T. , and T. Prusa (2006). ‘Ins, outs and the duration of trade’, Canadian Journal of Economics, 39(1), 266–95.
Burstein, A. , M. Eichenbaum , and S. Rebelo (2005). ‘Large devaluations and the real exchange rate’, Journal of Political Economy, 113(4), 742–84.
Campa, M. , and L. Goldberg (2005). ‘Exchange rate pass-through into imports prices’, Review of Economics and Statistics, 87(4), 679–90.
Casares, M. (2002). Time-To-Build Approach in A Sticky Price, Sticky Wage Optimizing Monetary Model, ECB working paper series No. 147.
Corsetti, G. , and P. Pesenti (2005). ‘International dimensions of optimal monetary policy’, Journal of Monetary Economics, 52(2), 281–305.
Das, S. , M. Roberts , and J. Tybout (2007). ‘Market entry costs, producer heterogeneity and export dynamics’, Econometrica, 75(3), 837–73.
Devereux, M. , and C. Engel (2003). ‘Monetary policy in the open economy revisited: price setting and exchange-rate flexibility’, Review of Economic Studies, 70(4), 765–83.
Dornbusch, R. , S. Fischer , and P. Samuelson (1977). ‘Comparative advantage, trade, and payments in a Ricardian model with a continuum of goods’, American Economic Review, 67(5), 823–39.
Edge, R. (2000a). The Effect of Monetary Policy on Residential and Structures Investment Under Differential Project Planning and Completion Times, Board of Governors of the Federal Reserve System international finance discussion papers No. 671.
Edge, R. (2000b). Time-to-Build, Time-to-Plan, Habit-Persistence, and the Liquidity Effect, Board of Governors of the Federal Reserve System international finance discussion papers No. 673.
Erceg, C. , L. Guerrieri , and C. Gust (2003). SIGMA: A New Open Economy Model for Policy Analysis, draft paper prepared for the Annual Central Bank Modelers' Workshop, Amsterdam.
Fagan, G. , J. Henry , and R. Mestre (2001). An Area-Wide Model (AWM) for the Euro Area, ECB working papers No. 42.
Friedman, M. (1953). ‘The case for flexible exchange rates’, in Essays in Positive Economics, Chicago University Press, pp. 157–203.
Gali, J. , and T. Monacelli (2005). ‘Monetary policy and exchange rate volatility in a small open economy’, Review of Economic Studies, 72, 707–34.
Ghironi, F. , and M. Melitz (2005). ‘International trade and macroeconomic dynamics with heterogeneous firms’, Quarterly Journal of Economics, 120(3), 865–915.
Goldberg, P. , and M. Knetter (1997). ‘Goods prices and exchange rates: what have we learned?’, American Economic Review, 35(3), 1243–72.
Goodfriend, M. , and R. King (1997). ‘The new neoclassical synthesis and the role of monetary policy’, NBER Macroeconomics Annual, 12, 231–83.
Juillard, M. , O. Kamenik , M. Kumhof , and D. Laxton (2007). ‘Measures of potential output from an estimated DSGE model of the United States’, paper presented at a workshop on Issues in Measuring Potential Output, Ankara Turkey, 16 January 2007.
Juillard, M. , O. Kamenik , M. Kumhof , and D. Laxton (2008). ‘Optimal price setting and inflation inertia in a rational expectations model’, Journal of Economic Dynamics and Control, 32(8), 2584–621.
King, R. , and A. Wolman (1996). ‘Inflation targeting in a St. Louis model of the 21st century’, Federal Reserve Bank of St. Louis Review, 78(3), 83–107.
Laxton, D. , and P. Pesenti (2003). ‘Monetary policy rules for small, open, emerging economies’, Journal of Monetary Economics, 50, 1109–46.
Laxton, D. , and R. Tetlow (1992). A Simple Multivariate Filter for the Measurement of Potential Output, Technical Report No. 59 (Ottawa: Bank of Canada), June.
Mendoza, E. (2005). Real Exchange Rate Volatility and the Price of Nontradables in Sudden-Stop-Prone Economies, NBER working papers No. 11691.
Murchison, S. , A. Rennison , and Z. Zhu (2004). A Structural Small Open-Economy Model for Canada, working paper, Bank of Canada.
Naknoi, K. (2008). ‘Real exchange rate fluctuations, endogenous tradability and exchange rate regimes’, Journal of Monetary Economics, 55(3), 645–63.
Obstfeld, M. , and K. Rogoff (2000). ‘New directions for stochastic open economy models’, Journal of International Economics, 50(1), 117–53.
Obstfeld, M. , and K. Rogoff (2002). ‘Global implications of self-oriented national monetary rules’, Quarterly Journal of Economics, 117(2), 503–35.
Roberts, M. , and J. Tybout (1997). ‘The decision to export in Colombia: an empirical model of entry with sunk costs’, American Economic Review, 87(4), 545–64.
Rotemberg, J. (1982). ‘Sticky prices in the United States’, Journal of Political Economy, 90, 1187–211.
Rotemberg, J. , and M. Woodford (1997). ‘An optimization-based econometric framework for the evaluation of monetary policy’, NBER Macroeconomics Annual, 12, 297–316.
Smets, F. , and R. Wouters (2002). ‘Openness, imperfect exchange rate pass-through and monetary policy’, Journal of Monetary Economics, 49, 947–81.
Smets, F. , and R. Wouters (2003). ‘An estimated stochastic dynamic general equilibrium model of the euro area’, Journal of the European Economic Association, 1(5), 1123–75.
Smets, F. , and R. Wouters (2007). ‘Shocks and frictions in U.S. business cycles: a Bayesian DSGE approach’, American Economic Review, 97(3), 586–606.
Taylor, J. (1993). ‘Discretion versus policy rules in practice’, Carnegie-Rochester Conference Series on Public Policy, 39, pp. 195–214.