This document discusses evaluating strategy using strategic analysis of operating income. It provides an example analysis of operating income for a chipset company from 2012 to 2013. The analysis breaks down changes in operating income into growth, price recovery, and productivity components. It examines the revenue and cost effects of each component, calculating the impact on operating income from changes in units sold, prices, input levels, and efficiency. The example shows increases in operating income driven by growth but decreases due to rising costs and less productivity.