JYH-BANG JOU2018-09-102018-09-102003http://www.scopus.com/inward/record.url?eid=2-s2.0-0035637220&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/295264[SDGs]SDG9R&D investment decision and optimal subsidybook chapter10.1111/1467-9310.00204