I am in India visiting a large customer who has heavily invested into organized retail stores, a relatively new category for the Indian market. Their head of analytics shared some details of their last promotion with me. They ran an email promotion to send out coupons that were valid on one and only one day -15th August, the Independence Day of India, which is a holiday in the country. They were really bold to take out a page-long ad in all large newspapers on the 15th August highlighting this promotion. Their sales, in all regions, soared on that day. It not only soared but broke all their previous records. They registered the highest sale in that year which was more than the Diwali sale. In the American terms, they managed to sell more on 4th July than on the Black Friday. This shocked me. I analyzed their efforts further to better understand this behavior. Indians in India don't drink beer, barbecue, or watch fireworks on the Independence Day. In fact they don't do anything....