Real exchange rate shocks on tradables, nontradables, and the current account: Mexico, 1980–2000.

Effects of external and income shocks on consumption and on the current account in Mexico from 1980 to 2000 are investigated. An intertemporal model captures the extent into which non-traded goods consumption affects traded-goods consumption, clarifying the roles of intratemporal or intertemporal substitution. Vector autoregressions (VARs) show that the 1% shock to non-traded goods consumption affects traded-goods consumption by −2% immediately, reverting to zero only after one year, supporting the intratemporal channel. Real exchange rate (RER) shocks exert considerable macroeconomic fluctuations. The 1% shock to RER affects traded goods consumption by −2% immediately, reaching −5% one year later. At the expense of income shocks, RER shocks grow in explanatory power over time: from 20%–25% at 1 quarter to 65%–69% of the variance of traded goods consumption 3 years later. Figures for the current account range from 14% to 68%, while income shocks appear less important. In contrast, for non-traded goods, RER shocks roughly match the quantitative importance of income shocks, reinforcing the theoretical analysis. Copyright Springer-Verlag Berlin Heidelberg 2003