Real Effective Exchange Rate (REER)
India's Real Effective Exchange Rate (REER) is a trade-weighted index of the rupee against a basket of currencies of India's major trading partners, adjusted for relative inflation differentials, measuring the rupee's international competitiveness in real terms.
The RBI publishes India's REER monthly, computed against a 40-currency basket that includes India's largest trade partners: the United States, the Eurozone, China, the UAE, the United Kingdom, and several others. The weights are derived from bilateral trade shares in goods (exports plus imports), revised periodically to reflect shifts in trade composition.
The base year for the current series is 2015–16 = 100. An index above 100 indicates that the rupee is more expensive in real terms than in the base year, implying that Indian exports are relatively less competitive globally compared to that reference period. Conversely, an index below 100 suggests the rupee is undervalued in real terms, which should — all else equal — support export competitiveness.
The 'real' adjustment is critical. Even if the nominal rupee depreciates sharply, high domestic inflation can erode the competitiveness gain. For example, if the rupee depreciates 5 per cent against the dollar but Indian inflation exceeds US inflation by 5 percentage points, the REER remains unchanged — no real competitiveness gain materialises. This is why the RBI and export analysts track REER rather than just nominal exchange rate movements.
Historically, India's REER has tended to appreciate over time because India's inflation has structurally exceeded that of advanced economies. This persistent real appreciation has been a point of concern for export-oriented sectors such as textiles, leather goods, and engineering goods. By contrast, IT services exports are less sensitive to REER because they are primarily price-competitive on the basis of human capital costs rather than currency levels.
Currency market participants use REER as a valuation anchor. Significant REER overvaluation relative to a fair-value estimate (often derived from purchasing power parity or productivity-adjusted models) can signal vulnerability to currency adjustment, particularly if combined with a widening current account deficit. The RBI's forex intervention strategy has been partly aimed at preventing excessive REER appreciation without explicitly targeting any exchange rate level.