How to Change Your Twitter Display Name on Desktop or Mobile Both your display name and your handle (or user name), which begins with the recognizable "@" symbol, can be used to identify you on Twitter. People will see your display name at the top of your profile, which is either...

In general, price discrimination occurs when a producer sells a commodity to different buyers at different prices for reasons not associated with differences in cost. For example, doctors, lawyers and engineer sometimes vary their fees according to the incomes of their clients. Cinemas also charge lower admission prices for children.