自改革开放以来我国经济取得了跨越式发展,人们的收入水平及生活水平也得到了巨大提升。当然随着人们收入水平由低到高,人们的生活水平也经由贫困—温饱—小康—富裕等各阶段,每个阶段每种消费品的需求收入弹性会呈现出规律性变化。人们由追求温饱逐渐到寻求更高层次的精神需求的过程中,一些农产品的需求收入弹性呈现出的循环性变化对现行经济的发展与转型在一定程度上起到了指导作用。 Since the reform and opening up, China’s economy has made leaps and bounds, and people’s income level and living standard have also been greatly improved. Of course, as people’s income levels rise from low to high, people’s living standards have gone through various stages such as poverty, well-being, well-to-do, and wealthy. The income elasticity of demand for each type of consumer goods will show a regular change at each stage. In the process of people gradually seeking food and clothing to seek higher level of spiritual needs, the cyclical changes in the income elasticity of demand for some agricultural products play a guiding role in the development and transformation of the current economy to a certain extent.