Chocolates, gums and mints may seem like easy sells to the average consumers, as they walk past them on their way to the cashier. Afterall, there's a reason they call those purchases "impulse buys." But for the people at Mars Chocolate North America, the "impulse candy" is a scientific research project akin to space shuttle management. During the Expo, Mars showed the press a few of the ways they've studied checkout lines and all the ways the lanes have evolved over the last few years. Ryan Broderick, director of strategic insights for Mars Chocolate North America, explained how important the front-end of every type of store is- to sum up 100 percent of customers walk through it.
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