When you go to a grocery store, most candy bars of a given size sell for virtually the same price. Can we conclude that this is evidence of collusion on the part of candy bar manufacturers?

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The Answer of When you go to a grocery store, most candy bars of a given size sell for virtually the same price. Can we conclude that this is evidence of collusion on the part of candy bar manufacturers?

When You Go to a Grocery Store, Most Candy Bars