This document discusses measuring marketing productivity. It introduces the chain of marketing productivity, which includes strategies and tactics that set strategic direction and create differentiated brands. Differentiated brands can charge higher prices, attain greater market shares, and are more responsive to advertising. The chain also includes customer impact, marketing assets like brand equity, market impact in both long and short term, financial impact through ROI, and impact on firm value. It provides examples of measuring productivity through sales numbers, customer surveys, and website analytics.