In terms of the numbers of firms in the U.S. economy, the most common type of firm is the

The degree to which monetary forces are the cause of aggregate demand instability is the major controversy between

a. classicists and Keynesians. b. monetarists and new classical economists. c. real business cycle theorists and classicists. d. monetarists and Keynesians. e. None of the above

When the isocost line is tangent to the isoquant, then

A) MRTS = -w/r. B) the firm is producing that level of output at minimum cost. C) the last dollar spent on capital yields as much extra output as the last dollar spent on labor. D) All of the above.