ELASTICITIES IN AIDS MODELS

被引：215

作者：

GREEN, R

ALSTON, JM

机构：

[1] Department of Agricultural Economics, University of California, Davis

来源：

AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS | 1990年 / 72卷 / 02期

关键词：

AIDS and LA/AIDS models; Computing formulas; Elasticities;

D O I：

10.2307/1242346

中图分类号：

F3 [农业经济];

学科分类号：

0202 ; 020205 ; 1203 ;

摘要：

In the literature, a variety of approaches have been used to calculate demand elasticities in almost ideal demand system (AIDS) models of demand. It is common to estimate the linear approximate almost ideal demand system (LA/AIDS) instead of the AIDS. When the LA/AIDS is estimated, all of the previously reported approaches to compute elasticities are theoretically incorrect. This paper presents correct formulas for LA/AIDS elasticities and illustrates the potential errors from using incorrect computing formulas. © 1990 American Agricultural Economics Association.

引用

页码：442 / 445

页数：4