Types of Price Discrimination 3rd-degree: Price paid by buyers in a given group is the same for all units purchased. But price may differ across buyer groups E.g., senior citizen and student discounts vs, no discounts for middle-aged personsTypes of Price Discrimination 3rd-degree: Price paid by buyers in a given group is the same for all units purchased. But price may differ across buyer groups. E.g., senior citizen and student discounts vs. no discounts for middle-aged persons