Alternative measures of effective exchange rates for agricultural trade
分析了适用于农业贸易的多边汇率变化的替代度量方法，比较了1970-1985年间的不同汇率指数，发现差异显著，并展示了不同汇率度量与贸易弹性在农业贸易模型中的相对重要性。
Alternative measures of multilateral exchange rate changes appropriate for agricultural trade are analysed. The economic theory of index numbers was consulted in analysing published exchange rate indices and in constructing new indices. Comparisons among indices were made for the period 1970–1985, and differences were found to be significant. Results were particularly sensitive to the use of global rather than bilateral trade weights, used in the U.S. Department of Agriculture index. The relative importance of alternative exchange rate measures and trade elasticities is illustrated in terms of an agricultural trade model.