working paper series fswp2003 2 market structure and consumer valuation in the rbst free organic milk markets1 tirtha dhar2 jeremy d foltz3 abstract this study uses revealed preferences of consumers to valuations specifies estimates a quadratic aids model for different types using us supermarket scanner data introduction is used estimate both competitive variety effects as measures results show significant lesser extent keywords demand systems q markets biotechnology organics food labeling jel codes q130 c300 d120 d400 copyright 2003 by dhar foltz all rights reserved readers may make verbatim copies document non commercial purposes any means provided that notice appears on such 1 project funded research group university wisconsin madison we are grateful professor kyle stiegert providing funds access eric finnin diligent tracking brands errors omissions
