The document analyzes brand efficiency between developed and emerging countries using data envelopment analysis (DEA). DEA models including CRS, VRS, FDH, and FRH are used to evaluate brands from the US, China, India, Germany, Japan, and the UK. The analysis finds some globally high-ranking brands are inefficient in their use of advertising costs, while lesser known brands are relatively efficient. The study provides a framework to compare brand efficiency across technologies and economies.