U.S. Export Performance in Agricultural Markets. An Economic Research ServiceReport

摘要

U.S. market shares are commonly used as measures of export performanceinternational markets and are frequently cited statistics in USDA publications. A drop in the U.S, market share is not necessarily associated with displaced U.S. sales from competing suppliers. Accurate interpretation of changes in the agricultrual market share requires understanding of the changing structure of world trade. The report develops a method, called trade-share accounting (TSA), that establishes the relationship between trade structure and market share.