方向弹性及其应用陈蕴衡一、引言弹性理论自诞生之日距今已有上百年的历史，它既是市场机制基本理论的一个重要组成部分，也是一个重要的研究方法和分析工具。弹性理论研究的主要是经济中各变量之间的变化关系，即一个变量对另一个变量变化的反应度。从微观经济管理到宏观... Directional Elasticity and Its Application CHEN Yunheng I. INTRODUCTION Elasticity theory has existed for hundreds of years since it was born. It is not only an important part of the basic theory of market mechanism, but also an important research method and analytical tool. The main study of elasticity theory is the relationship between the variables in the economy, that is, the reactivity of one variable to another. From microeconomic management to macro ...