關鍵詞：永續咖啡、動態資料包絡分析法、經營績效 ;Coffee is one of the most important beverages in the world. Sustainable coffee certifications make consumers ensure that the products they buy are friendly to the environment, society, economy and natural ecology with certification labels. The purpose of this study is to view the coffee industry as the research object, and to learn about the current situation of the coffee market through literature reviews and efficiency assessment. Furthermore, this study focuses on the business performance of 16 coffee companies around the world. Combining with sustainable coffee certifications and label categories, we try to evaluate the efficiency performance of 16 coffee companies from 2015 to 2017 by using the dynamic DEA approach. With the least-squares approximation, the study will discuss the impact of different sustainable coffee labels to realize if the coffee industry is influenced by the four international mainstream sustainable coffee labels, Organic, fair-trade. Rainforest and UTZ. To sum up, the result of this study can be used as a reference for promoting sustainable coffee.
Keywords: Sustainable coffee, Dynamic data envelopment analysis, Business performance
