of all the points on the production possibilities curve only one point represents an efficient point
Production–possibility frontier In the PPF, all points on the curve are points of maximum productive efficiency (no more output of any good can be achieved from the given inputs without sacrificing output of some good); all points inside the frontier (such as A) can be produced but are productively inefficient; all points outside the curve (such as X) cannot be produced with the given, existing resources.[2] Not all points on the curve are Pareto efficient, however; only in the case where the marginal rate of transformation is equal to all consumers' marginal rate of substitution and hence equal to the ratio of prices will it be impossible to find any trade that will make no consumer worse off.[3]
Factors of production In economics, factors of production, resources, or inputs are what is used in the production process to produce outputâ€”that is, finished goods and services. The utilized amounts of the various inputs determine the quantity of output according to the relationship is called the production function. There are three basic resources or factors of production: land, labour and capital. The factors are also frequently labelled "producer goods or services" to distinguish them from the goods or services purchased by consumers, which are frequently labeled "consumer goods". All three of these are required in combination at a time to produce a commodity.