TY - CPAPER AU - I. Ozcan AU - S. Aytar TI - CONSUMER SURPLUS OF THE QUADRATIC DEMAND FUNCTION AND PRODUCER SURPLUS OF THE QUADRATIC SUPPLY FUNCTION BY FUZZIFYING POLYGONAL FUZZY NUMBERS AND DEFUZZIFYING GRADED MEAN T2 - 6th SWS International Scientific Conference on Social Sciences ISCSS 2019 PY - 2019 SP - 57 EP - 64 DO - 10.5593/SWS.ISCSS.2019.2/S04.008 PB - STEF92 Technology ER -