摘要
蛛网模型是动态经济分析中一个经典模型,模型中供给价格的预期形式是该模型的核心部分.随着预期理论的发展,先后出现过简单预期、外推性预期、适应性预期和理性预期等不同形式的预期.根据这4种预期形式对传统蛛网模型的扩展进行总结,比较了不同形式预期蛛网模型各自的优缺点,并推导它们的稳定性条件,从而有助于人们进一步认识蛛网模型及其与预期理论的联系.
The cobweb model is a classical model of dynamic economic analysis. The form of expectation on supply price is the core part of the model. With the development of the expectations theory, it is appeared different forms of expectation such as simple expectation, extrapolation expectation, adaptive expectation and rational expectation. This paper expands the traditional cobweb model according to the four different expectation forms, compares their respective advantages and disadvantages. At last, their stability conditions are derived, the conclusion will help to further understand the cobweb model and its links with the expectation theory.
出处
《数学的实践与认识》
CSCD
北大核心
2013年第24期123-128,共6页
Mathematics in Practice and Theory
基金
国家自然科学基金(70973072)
教育部人文社科基金(12YJCZH098)
山西省软科学研究项目(2013041013-03)
山西大学商务学院基金(2012049)
关键词
蛛网模型
预期
稳定性
cobweb model
expectation
stability
