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The Choices That Elevators Make

Assume that you are on the seventh floor waiting for one of three elevators. Car 1 can arrive in 15 seconds but the total wait time will be 25 seconds because it has a stop on the eighth floor. Closer…

Starbucks Drive-Through Economics

My new Starbucks has a drive-through. If you look at a high shelf near the window through which the baristas hand the coffee and food to drivers, you see a screen with little cars and numbers. Changin…

Cheesecake Medicine?

Could Cheesecake Factory help us fix our healthcare system? Touring the kitchen of a Cheesecake Factory restaurant, you would see arrival, refrigeration and storage areas, and cutting, mixing, choppin…