PITTSBURGH (CBS Pittsburgh) – Perhaps you have noticed a significant jump in prices in the supermarket. More and more grocery shoppers experience sticker shock every day. The prices of food – especially meat, fruit and vegetables – are rising.

“The food disappears from sight. It is. It’s really. The prices are ridiculous, ”said Donna Gallager.

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The consumer price index rose 4.2 percent in April, the largest increase in 13 years. But grocery shoppers say that’s not half of it. “I saw a couple of apples that were $ 2.19 a pound,” said Ron Flucker. “You get two apples for that. That’s ridiculous.”

As the economy recovers, so does the demand for items that are suddenly in short supply. The workers are now demanding more wages to deliver them. Economists say it’s the perfect storm of factors that make the things you buy more expensive. “All of these things combined have affected the current situation with higher inflation than we expected,” said Risa Kumazawa, associate professor of economics at Duquesne University.

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Jeff Cohen, a deli and meat wholesaler, said these factors are driving the price of meat out of control. “You said on the national news that it is 10 percent. But that’s not true. it’s probably more like 20, 30 percent, ”Cohen said.

And Professor Kumazawa said the economy is overheating. “If you realize this could be a longer-term problem than we thought it might be too late to address this problem,” said Kumazawa.

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If this is not a temporary spike, inflation will continue to rise and it will become increasingly difficult for consumers to keep up.