世界基准联盟（WBA）：2019年粮食和农业基准范围报告（英文版）

The companies selected for WBA’s Food and Agriculture Benchmark were identified using the concept of keystone actors, those companies across the food and agriculture value chain with a disproportionate impact on the structure and function of the system in which they operate. Most of these large companies work with thousands of business partners, through subsidiaries and their own production and distribution networks. The large majority of companies are publicly listed and almost a quarter are