Despite the lack of pizzarights, pizza margins in the real world allow many pizza manufacturers to earn healthy profits.
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For the oenophile wanting a viticulturally inspired challenge, Naples throws up an interesting tussle, as its greatest culinary gift to the world, the pizza, is one of the hardest food and wine pairings to get right.
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Paris and Hong Kong, both centers of haute cuisine, have the world's two busiest Pizza Hut outlets.
Many smaller pizza companies from all parts of the world also seem to have caught China fever.
Pizza is a surprisingly translatable meal around the world.
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In the real world, if you hand out flyers for a pizza restaurant in Birmingham to people in Beijing and Mexico City, then you're not going to get the customers you want.
The bestselling shop-bought pizza in Italy, and indeed in 33 other countries around the world including Britain, is made by a German-owned food company on an industrial estate just off the M6 in Leyland, Lancashire.
By the time those 12-year-olds turn 15, they may not know a world without Android-driven cell phones that can locate the nearest pizza joint, download the latest Hollywood blockbusters, and heck, maybe even make a phone call.
The use of Bitcoins has been slowly spilling from the online into the physical world - for example, it is now possible to use the currency to buy pizza.
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The company, spun off in 1997 by PepsiCo (nyse: PEP - news - people ) and now the world's largest restaurant operator in terms of units, has restaurants in five major chains including Pizza Hut and Taco Bell in more than 100 countries.
In May of this year, the company invited 4600 people from 56 markets around the world to rally in Las Vegas for a 3-day meeting to drill their strategy down: better pizza, new menu, and now great experiences.
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