@techreport{weko_68288_1,
   author	 = "Yiping,Zhao and Jun,Ohya",
   title	 = "Policy Design and Producer's Strategy under Extended Producer Responsibility: Economic Responsibility",
   year 	 = "2010",
   institution	 = "Graduate School of Global Information and Telecommunication Institute, Waseda University, Graduate School of Global Information and Telecommunication Institute, Waseda University",
   number	 = "21",
   month	 = "mar"
}