Pay what you want (or PWYW) is a pricing strategy where buyers pay their desired amount for a given commodity, sometimes including zero. In some cases, a minimum (floor) price may be set, and/or a suggested price may be indicated as guidance for the buyer. The buyer can also select an amount higher than the standard price for the commodity. Many common uses of PWYW set the price prior to a purchase, but some defer price-setting until after the experience of consumption (much like tipping). PWYW is a buyer-centered form of participatory pricing, also referred to as co-pricing (as an aspect of the co-creation of value).