Solution:The indices of Nominal Effective Exchange Rate (NEER) and Real Effective Exchange Rate (REER) are used as indicators of external competitiveness. NEER is the weighted average of bilateral nominal exchange rates of the home currency in terms of foreign currencies. An increase in NEER indicates an appreciation of the local currency against the weighted basket of currencies of its trading partners. Thus, an in- crease in NEER indicates an appreciation of the rupee. Hence, statement 1 is correct.Conceptually, the REER, defined as a weighted average of nominal exchange rates adjusted for relative price differential between the domestic and foreign countries (the weighted average of NEER adjusted by the ratio of domes- tic prices to foreign prices), relates to the purchasing power parity (PPP) hypothesis. Hence, an increasing trend in domestic inflation relative to inflation in other countries is likely to cause an increasing divergence between NEER and REER. Furthermore, an increase in REER implies that exports be- come more expensive and imports become cheaper; there- fore, an increase in it indicates a loss in trade competitive- ness. Hence, statement 3 is correct, while statement 2 is incorrect.