The decline of an export industry, or the growth of Peruvian sugar consumption in the long run
研究了秘鲁食糖产业长期中本地消费增长如何影响出口表现，通过估算1913-1978年间不同糖类的需求弹性，发现加总不同糖类会高估精制糖的收入弹性并低估价格弹性。
Growth of domestic consumption of agricultural exportables is a neglected aspect of LDCs’ long‐run primary export performance. Price and income elasticities of local demand for specific exportables vary with economic development, so the Peruvian sugar industry was chosen to illustrate how and why such changes occur. Elasticity estimates for different types of sugar are presented for several time periods between 1913 and 1978. A comparison of these results with those of other researchers suggests that aggregating raw, refined and plantation white sugar consumption may bias income elasticity estimates for refined sugar upwards, and price elasticity estimates downwards.