When a firm charges different prices to different customer segments for the same product or service without corresponding cost differences, it is practicing:

Explanation

* Segmented Pricing sells products at two or more prices, where the difference in price is not based on differences in costs.
* Forms include customer-segment pricing (student discounts), product-form pricing, location pricing, and time pricing.
* To be effective, market segments must be legally separable and show varying intensities of demand.