Forever Stamps are always sold at the same price as a regular First-Class Mail stamp. The Postal Service developed the Forever Stamp for consumers ease of use during price changes. Forever Stamps are available for purchase at post offices nationwide, online at usps.com, and by phone at 1-800-STAMP-24 (1-800-782-6724).
Production Possibility curves. The production possibility curves is a hypothetical representation of the amount of two different goods that can be obtained by shifting resources from the production of one, to the production of the other. The curve is used to describe a societys choice between two different goods. Figure 1, shows the two goods as consumption and investment.
value of the next best alternative. It applies to both the supply side of the market. (production) and the demand side of the market (consumption). A graph of the production possibility frontier (PPF) demonstrates the. existence of opportunity costs (see below). The PPF is the boundary line. showing what combinations of two goods are possible to produce (or buy) given. the full employment of resources (the line with the diamonds).