Literature provides evidence of a highly price-elastic demand for organic food. However, most of the studies were conducted several years ago. In the meantime the organic market has matured. Consequently, results in literature need to be reviewed. This study specifically addresses own-price elasticity estimates for organic and conventional milk. The analysis is based on a household panel dataset of 20,000 German households. A two-step estimation procedure is applied. First, a probit regression examines which household characteristics affect the probability of buying organic milk. Second, a linear approximated almost ideal demand system provides detailed demand elasticity estimates. By using up-to-date data, distinguishing between different consumer groups, incorporating sociodemographic information and relying on a considerably large sample size this study is both an update and a refinement of previous research. In contrast to previous studies, econometric results suggest that demand for organic milk is absolutely price-inelastic in Germany. However, price responsiveness differs substantially between milk types and consumer groups.Given this background, the objective of this study is to update and to extend the analysis of household demand for organic and conventional milk, and to compare the German with the U.S. organic milk market. Combining actual purchase and demographic data and applying a two-step demand system approach, this study identifies and quantifies the factors determining the demand for organic and conventional fresh milk. It contributes to the body of literature by providing estimates of price and expenditure elasticities in a maturing organic food market. Additionally, econometric analyses are conducted not only for the whole population, but also for several consumer groups.The article is organized as follows: Section 2 surveys in detail the literature currently available on the demand for organic milk. In Section 3, the conceptual model is presented. Section 4 introduces the data, the GfK Homescan Panel. Section 5 covers the econometric evidence and provides interpretations of the results. Finally, conclusions are given in Section 6.
LITERATURE REVIEWMost studies focusing on organic food consumption analyzed attitudes regarding organic food rather than actual purchase decisions. Using survey data or experimental methods, these studies typically determined the willingness to pay (see e.g.has provided evidence of a considerable discrepancy between consumer attitudes towards organic food and their actual purchasing behavior (e.g., Frykblom, 1997; Roddy, Cowan, & Hutchinson, 1999). This divergence suggests the use of real purchase data rather than survey data to characterize organic consumer behavior.There are two strands of organic food research using real purchase data. The first one examines the organic consumer profile with respect to sociodemographic characteristics, attitudes, and cultural norms. The second one analyzes consumer purchasing behavior-especially their responsiveness to changes in...