Describing strategies in 2x2 matrices

The McKinsey Quarterly mail showcased an interesting article titled "Capturing the World's Emerging Middle Class" earlier this month. One of the key takeaways is a 2x2 matrix splitting the possible strategies based on the consumer's ability to buy (high vs. low) and the nature of the consumer need (global vs. local). The full article is available at  https://www.mckinseyquarterly.com/Retail_Consumer_Goods/Strategy_Analysis/Capturing_the_worlds_emerging_middle_class_2639 (free registration required).

I suppose 2x2 matrices are an unavoidable part of any strategy discussion :-) I remember seeing lots of them during the Corporate Strategy course at IIMB.  While they do look obvious once we see them, coming up with our own matrices to summarize a discussion is not very easy.