Modeling the Decision to Produce Vegetables at Home
研究发现居住区域、房屋所有权、种族、收入来源、成人数量与年龄以及省钱潜力显著影响家庭是否自产蔬菜，平均每年节省约40美元蔬菜开支。
Abstract The household decision to produce vegetables at home was found to be influenced significantly by the area of household residence, homeownership, race, source of income, the number and ages of adults in the household, and the potential for saving money. It was estimated that an average gardening household saved approximately $‐40 per year on vegetables. This is approximately twenty percent of the average amount spent on vegetables in 1977 by nongardening households. A simultaneous equation model was estimated to derive these results.