文章基本信息

标题：Addressing Pre-Commitment Bias with a Generalized EASI Model: An Application to Food Demand in Russia
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作者：Vardges Hovhannisyan ; Aleksan Shanoyan
期刊名称：Journal of Agricultural and Resource Economics
印刷版ISSN：1068-5502
出版年度：2019
卷号：44
期号：1
页码：80-97
出版社：WAEA
摘要：The Exact Affine Stone Index (EASI) demand model offers distinct advantages over itspredecessors. However, it does not account for pre-committed demand. This can bias elasticityestimates when such pre-commitments are present. We derive a generalized EASI model thatallows for pre-committed demand. We illustrate the advantage of this model in an empiricalanalysis of food demand in Russia using provincial-level panel data. The results provide strongempirical evidence for the presence of pre-committed demand for key food commodities. Thefindings extend the literature on food demand in Russia by estimating elasticities that account forpre-commitments and unobserved regional heterogeneity.
关键词：demand system; generalized EASI model; pre-committed demand