There is a blackout “In the Heights” during the hottest week of the year, and the seller of Piragua, a shaved ice drink, is happy. Why? Two reasons: first, the high heat means that the demand for Piragua will be higher. Second, the singer finds out his main competition has also closed down.
Both of these changes would cause an increase in demand and would cause the seller to charge higher prices. When that happens – who doesn’t want to sing?