Answer:
The principle that suggests that the distribution of income should be based on the contribution made by individuals to society's total output is known as:
The productivity standard fails to yield an equal distribution of income because:
Explanation:
Generally speaking, productivity refers to how many units of output we can produce by using X amount of units of inputs. The higher the output, the more productive we are.
The same principle is used by the productivity standard to allocate resources in a society. This is a basic doctrine of capitalism that believes that more work and more productivity should equal more income. That is why capitalistic countries tend to have unequal income distribution.