2008年金融危机对墨西哥粮食安全和食品支出的影响:对弱势群体的影响不成比例。

The impact of the 2008 financial crisis on food security and food expenditures in Mexico: a disproportionate effect on the vulnerable.

作者信息

Vilar-Compte Mireya, Sandoval-Olascoaga Sebastian, Bernal-Stuart Ana, Shimoga Sandhya, Vargas-Bustamante Arturo

机构信息

1Health Department,Universidad Iberoamericana,Prolongación Paseo de la Reforma 880,Lomas de Santa Fe,01219 Mexico City,DF,Mexico.

2Department of Health Policy and Management,University of California Los Angeles,Fielding School of Public Health,Los Angeles,CA,USA.

出版信息

Public Health Nutr. 2015 Nov;18(16):2934-42. doi: 10.1017/S1368980014002493. Epub 2014 Nov 27.

Abstract

OBJECTIVE

The present paper investigated the impact of the 2008 financial crisis on food security in Mexico and how it disproportionally affected vulnerable households.

DESIGN

A generalized ordered logistic regression was estimated to assess the impact of the crisis on households' food security status. An ordinary least squares and a quantile regression were estimated to evaluate the effect of the financial crisis on a continuous proxy measure of food security defined as the share of a household's current income devoted to food expenditures. Setting Both analyses were performed using pooled cross-sectional data from the Mexican National Household Income and Expenditure Survey 2008 and 2010.

SUBJECTS

The analytical sample included 29,468 households in 2008 and 27,654 in 2010.

RESULTS

The generalized ordered logistic model showed that the financial crisis significantly (P<0·05) decreased the probability of being food secure, mildly or moderately food insecure, compared with being severely food insecure (OR=0·74). A similar but smaller effect was found when comparing severely and moderately food-insecure households with mildly food-insecure and food-secure households (OR=0·81). The ordinary least squares model showed that the crisis significantly (P<0·05) increased the share of total income spent on food (β coefficient of 0·02). The quantile regression confirmed the findings suggested by the generalized ordered logistic model, showing that the effects of the crisis were more profound among poorer households.

CONCLUSIONS

The results suggest that households that were more vulnerable before the financial crisis saw a worsened effect in terms of food insecurity with the crisis. Findings were consistent with both measures of food security--one based on self-reported experience and the other based on food spending.

摘要

目的

本文研究了2008年金融危机对墨西哥粮食安全的影响,以及它如何对弱势家庭产生了不成比例的影响。

设计

估计了一个广义有序逻辑回归模型,以评估危机对家庭粮食安全状况的影响。估计了普通最小二乘法和分位数回归,以评估金融危机对粮食安全连续代理指标的影响,该指标定义为家庭当前收入中用于食品支出的份额。设置:两项分析均使用了来自2008年和2010年墨西哥全国家庭收入和支出调查的汇总横截面数据。

对象

分析样本包括2008年的29468户家庭和2010年的27654户家庭。

结果

广义有序逻辑模型显示,与严重粮食不安全相比,金融危机显著(P<0.05)降低了粮食安全、轻度或中度粮食不安全的概率(OR=0.74)。当比较严重和中度粮食不安全家庭与轻度粮食不安全和粮食安全家庭时,发现了类似但较小的影响(OR=0.81)。普通最小二乘法模型显示,危机显著(P<0.05)增加了食品支出占总收入的份额(β系数为0.02)。分位数回归证实了广义有序逻辑模型提出的结果,表明危机对较贫困家庭的影响更为深远。

结论

结果表明,在金融危机之前较脆弱的家庭,在粮食不安全方面因危机而受到更严重的影响。研究结果与两种粮食安全衡量标准一致——一种基于自我报告的经历,另一种基于食品支出。

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