International comparisons of animal welfare standards reveal dramatic variation and enable identification of best practices. Global indices are driving welfare improvement through transparency and accountability.
Global animal welfare measurement and comparison serves multiple welfare functions: it creates accountability by making national performance visible, identifies best practices that can be adopted elsewhere, and enables welfare-conscious consumers and businesses to make informed international sourcing decisions. The significant variation between top-performing and bottom-performing countries represents both a welfare problem and an opportunity — the welfare gains achievable in countries moving from low to moderate standards are enormous, affecting billions of animals. International trade creates both a mechanism for welfare improvement (importing countries can set welfare standards for imported products) and a race-to-the-bottom risk (welfare improvements in high-standard countries are undermined if production simply moves to lower-standard countries). Effective global welfare improvement requires international policy coordination alongside domestic reform.