The ________ is the ratio of the number of people in the labor force to the total adult population

Using the formula for an infinite sum, if "r" designates the reserve ratio, the 1 / reserve ratio would equal

A) (1 - r). B) 1 / (1 - r). C) r / (1 - r). D) 1 / [1 - (1 - r)].

As the definition of products narrows (i.e., becomes more specific), the concentration ratio

A) is not valid. B) tends to decrease. C) tends to increase. D) does not change in any predictable manner.