Sunday, June 2, 2019

choshen mishpat civil law - How is Ona'a (overcharging) determined?



Partially inspired by this question I would like to know exactly how ona'a (over/underchanging by more than 1/6th) is determined. For example tap water is free and in many parts of the united states is 100% safe to drink. Yet people pay more than $1 for bottled water. Why? I would chalk it up to marketing. Does that mean that I as an orthodox Jew cannot sell or buy a bottle of water since I would be duping the consumer?


What are the parameters for determining if one person is violating Ona'a?


Note: please don't get bogged down on the example; feel free to provide a better one that demonstrates the question.




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