如题：

• Measuring Returns to an Innovation in an Imperfectly Competitive Market: Application to Mechanical Harvesting of Processing Tomatoes in Taiwan
• Shu-Yu Huang and Richard J. Sexton American Journal of Agricultural Economics, Vol. 78, No. 3 (Aug., 1996), pp. 558-571
  (article consists of 14 pages)
• Published by: Blackwell Publishing on behalf of the Agricultural & Applied Economics Association
• Stable URL: http://www.jstor.org/stable/1243274

请好心人帮助谢谢！