頁籤選單縮合
題名 | Nutrition, Health, and Prices: A Household Production Approach=營養、健康、與價格之研究:家計生產法 |
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作者姓名(中文) | 陳世能; | 書刊名 | 世界新聞傳播學院學報 |
卷期 | 6 1996.10[民85.10] |
頁次 | 頁163-198 |
分類號 | 411.1 |
關鍵詞 | 營養; 健康; 價格; 家計生產法; |
語文 | 英文(English) |
中文摘要 | 若營養素的內生性(endogeneity)與度量誤差(measurement error) 在相對價格的變化中,不被列入考慮,則流行病理學中關於營 養素與健康之間關聯性之研究可能導致令人誤解的結論。本文擬應用 家計生產法來評估營養素與其他健康投入對健康的影響。假設在家計 部門的健康生產技術中,對健康投入的需求隨物價的波動而有所影 響。再者,對於健康投入潛在性的度量誤差可能會導致對健康生產參 數估計值的偏差。故此,物價、工資以及其他外生變數,因為與誤差 項不相干,被視為一指標工具,以用於對健康投入的需求及其所產生 的健康簡化等式的工具,用以修正在健康生產函數中對健康投入所產 生的兩個問題:內生性與度量誤差。實證結果顯示,食物的價格為健 康的重要決定因素。因此,文中亦探討關於對食物價格之干預以提昇 健康狀況的政策性意義。再者,家計部門生產的方法與傳統流行病理 學的方法探討健康投入對健康的影響均一同作比較,用以檢定健康投 入的內生性與度量誤差的存在性。 |
英文摘要 | Epidemiological studies of the associations between nutrients and health may yield misleading conclusions if relative prices are not taken into account due to the presence of endogeneity and measurement error associated with the nutrients. This paper applies a household production approach to assess impacts of nutrients and other health inputs on blood pressure. Demand for health inputs in the health production technology are assumed to respond to prices. Moreover, potential measurement error associated with the health inputs biases the estimates of the health production parameters. Thus, prices, along with wages and other exogenous variables, orthogonal to the error term, serve as instruments in the demand for health inputs and the resulting reduced-form health equations to correct the problems of endogeneity and measurement error of the health inputs in the health production function. Empirical results suggest that food prices are important determinants of health. Hence, policy implications concerning food price interventions to improve health are discussed. Moreover, household production and benchmark epidemiological estimates of the impacts of health inputs upon blood pressure are compared to examine the existence of endogeneity and measurement error associated with the health inputs. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。