Claro Rafael Moreira, Carmo Heron Carlos Esvael do, Machado Flávia Mori Sarti, Monteiro Carlos Augusto
Núcleo de Pesquisas Epidemiológicas em Nutrição e Saúde, Universidade de São Paulo, São Paulo, SP, Brasil.
Rev Saude Publica. 2007 Aug;41(4):557-64. doi: 10.1590/s0034-89102007000400009.
To analyze the influence of income and food prices on household consumption of fruit and vegetables.
Data from the 1998/99 Household Budget Survey were analyzed, which was conducted by the Fundação Instituto de Pesquisas Econômicas (Institute for Economic Research Foundation) in the city of São Paulo, Brazil. The influence of income and food price on the relative participation of fruit and vegetables in the total household calorie intake was studied using regression analysis to estimate elasticity coefficients.
There was an increase in participation of fruit and vegetables in total household calorie purchases along with the recorded decrease in prices, increase in family income, and increase in prices of other foods. A one percent decrease in the price of fruit and vegetables would lead to a 0.2% increase in the participation of these items in the total calorie content; a 1% increase in the price of other foods would increase fruit and vegetable participation by 0.07%; and a 1% increase in family income would increase participation by 0.04%. The effect of the prices of other foods was less intense in higher income groups, and in the other two scenarios we were unable to identify consistent income-associated patterns.
A reduction in the price of fruit and vegetables, which can be achieved by means of public policies, could lead to an increase in fruit and vegetable intake in households in São Paulo and in other cities with similar scenarios.
分析收入和食品价格对家庭水果和蔬菜消费的影响。
对1998/99年家庭预算调查的数据进行分析,该调查由巴西圣保罗市的经济研究基金会(Fundação Instituto de Pesquisas Econômicas)开展。使用回归分析估计弹性系数,研究收入和食品价格对水果和蔬菜在家庭总卡路里摄入量中相对占比的影响。
随着记录的水果和蔬菜价格下降、家庭收入增加以及其他食品价格上涨,水果和蔬菜在家庭总卡路里购买量中的占比有所增加。水果和蔬菜价格下降1%会导致这些食品在总卡路里含量中的占比增加0.2%;其他食品价格上涨1%会使水果和蔬菜的占比增加0.07%;家庭收入增加1%会使占比增加0.04%。在高收入群体中,其他食品价格的影响较小,在其他两种情况下,我们无法确定与收入相关的一致模式。
通过公共政策降低水果和蔬菜价格,可能会使圣保罗市以及其他情况类似城市的家庭增加水果和蔬菜的摄入量。