When a country decreases the official value of its currency, for example, Russia changes the value of the ruble from $.16 to $.04, it is said to have ____ its currency.

For the monopolist, marginal revenue is

A) equal to price. B) less than average revenue since price must be lowered to sell additional units. C) greater than price. D) not a consideration in the firm's pricing.

As price decreases along a linear demand curve, price elasticity of demand decreases

a. True b. False