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.
Economics Basics: Production Possibility Frontier, Growth, Opportunity Cost and Trade. So far, we have gone over key topics of economics that have focused generally on microeconomicâ phenomena. Here, we turn to more macroeconomic matters that occur on the level of national economies. Production Possibility Frontier (PPF) In the field of macroeconomics, the production possibility frontier (PPF) represents the point at which a countryâs economy is most efficiently producing its goods and services and, therefore, allocating its resources in the best way possible.