We examined the cross-national adoption of six major private food safety standards, focusing on the role of certifiers and international trade. Results show that the number of certification bodies existing in the domestic country, food exports, and the proportion of food exports to North America had positive effects on a country's adoption of food safety standards. Distance leads to product differentiation for the standards and therefore disadvantages developing countries in Africa and Asia for adopting the standards, which are all based in the United States or Europe. Providing these countries with better access to certifiers can alleviate this geographic disadvantage.

After controlling a variety of feeder cattle characteristics and market and sale conditions in Iowa feeder auctions, the price premiums for preconditioning claims (vaccinations and minimum 30 days of weaning) with and without third-party certification (TPC) are estimated as $6.12/cwt and $3.35/cwt, respectively. These premiums differ statistically (p < 0.0001), and their difference exceeds the average participation cost of TPC ($l/cwt). This indicates that TPC is valued in the market to credibly signal preconditioning investment under asymmetric information.