Kim, Hyeongwoo (2011): VECM estimations of the PPP reversion rate revisited: the conventional role of relative price adjustment restored.
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Cheung et al. (2004) use a vector error correction model (VECM) for the current float nominal exchange rate and the relative price data and claim that the sluggish Purchasing Power Parity (PPP) reversion is primarily driven by the nominal exchange rate, not by relative price adjustment, which is at odds with the conventional sticky-price models. Our major findings are as follows. First, we suggest cases where VECMs are of limited usefulness even when all the variables in the system are not weakly exogenous. Second, using century-long exchange rates, we find that the relative price plays an important role for PPP reversion when real shocks occur. Third, protracted hump-shaped responses of real exchange rates are frequently observed when there is a relative price shock, leading to sluggish adjustments toward PPP. Nominal exchange rate shocks generate humped dynamics much less frequently.
|Item Type:||MPRA Paper|
|Original Title:||VECM estimations of the PPP reversion rate revisited: the conventional role of relative price adjustment restored|
|Keywords:||Purchasing Power Parity; Convergence Rate; Half-Life; Up-Life; Quarter-Life; Hump-Shaped Response; Variance Decomposition|
|Subjects:||C - Mathematical and Quantitative Methods > C3 - Multiple or Simultaneous Equation Models; Multiple Variables > C32 - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models
F - International Economics > F3 - International Finance > F31 - Foreign Exchange
|Depositing User:||Dr. Hyeongwoo Kim|
|Date Deposited:||26. Aug 2011 18:48|
|Last Modified:||16. Feb 2013 10:12|
Chari, V.V., Kehoe, P.J., McGrattan, E.R., 2002. Can sticky price models generate volatile and persistent real exchange rates? Review of Economic Studies 69, 533-563.
Cheung, Y-W., Lai, K.S., Bergman, M., 2004. Dissecting the ppp puzzle: The unconventional roles of nominal exchange rate and price adjustments. Journal of International Economics 64, 135-150.
Dornbusch, R., 1976. Expectations and exchange rate dynamics. Journal of Political Economy 84, 1161-1176.
Eichenbaum, M., Evans, C.L., 1995. Some empirical evidence on the effects of shocks to monetary policy on exchange rates. Quarterly Journal of Economics 110, 975-1009.
Elliott, G., Rothenberg, T., Stock, J.H., 1996. Efficient tests for an autoregressive unit root. Econometrica 64, 813-836.
Engel, C., Morley, J.C., 2001. The adjustment of prices and the adjustment of the exchange rate. NBER Working Paper No. 8550.
Engle, R.F., Granger, C.W.J., 1987. Co-integration and error correction: representation, estimation, and testing. Econometrica 55, 251-276.
Froot, K.A., Rogoff, K., 1995. Perspectives on PPP and long-run real exchange rates. in: Grossman, G.M., Rogoff, K., (Eds.), Handbook of International Economics, Vol. III, North-Holland, Amsterdam, pp. 1647-1688.
Hall, A., 1994. Testing for a unit root in time series with pretest data-based model selection. Journal of Business and Economic Statistics 12, 461-470.
Kim, H., 2009. Generalized impulse response analysis: general or extreme? MPRA Working Paper No.17014.
Lopez, C., Murray, C., Papell, D.H., 2005. State of the art unit root tests and purchasing power parity. Journal of Money, Credit, and Banking 37, 361-369.
Ng, S., Perron, P., 2001. Lag length selection and the construction of unit root tests with good size and power. Econometrica 69, 1519-1554.
Obstfeld, M., Rogoff, K., 2000. The six major puzzles in international macroeconomics: Is there a common cause? NBER Macroeconomics Annual 15, 339-390.
Pesaran, M.H., Shin, Y., 1996. Cointegration and speed of convergence to equilibrium. Journal of Econometrics 71, 117-143.
Pesaran, M.H., Shin, Y., 1998, Generalized impulse response analysis in linear multivariate models. Economics Letters 58, 17-29.
Rogoff, K., 1996. The purchasing power parity puzzle. Journal of Economic Literature 34, 647-668.
Steinsson, J., 2008. The dynamic behavior of the real exchange rate in sticky price models. American Economic Review 98, 519-533.
Stockman, A.C., 1987. The equilibrium approach to exchange rates. Federal Reserve Bank of Richmond Economic Review.
Taylor, A.M., 2001. Potential pitfalls for the purchasing-power-parity puzzle? Sampling and specification biases in mean-reversion tests of the law of one price. Econometrica 69, 473-498.
Taylor, A.M., 2002. A century of purchasing power parity. Review of Economics and Statistics 84, 139-150.