But major food companies, from Nestlé to Unilever, increased prices much more than that. The world's biggest food companies spent the first half of this year raising prices, according to several earnings reports released this week. Some external factors have impacted the costs that major food companies pay to produce their products. It's especially easy for global food companies to raise prices, given that a few companies own most of the brands in many US grocery stores. But there's some evidence that consumers aren't willing to put up with higher food prices indefinitely.

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Persons: PepsiCo's, Ramon Laguarta, We've, James Quincey, Quincey, PepsiCo's Laguarta Organizations: Consumer, Unilever, Service, PepsiCo, Quaker Oats, Gatorade, Federal Reserve, New York Times, Walmart, Costco, Sam's Locations: Nestlé, Wall, Silicon, Ukraine, Clorox, Kingsford, Europe