the length of line segment D-E.

the length of line segment D-k2.

the length of line segment E-k2.

none of the other answers are correct.

the economy’s output per unit labour is below its steady-state value.

the economy’s unemployment rate is too high.

the economy’s steady state is not at the golden-rule steady-state

none of the other answers are correct.

will grow at the rate a.

will grow at the rate a + n.

will grow at the rate a - n.

will grow at the rate ? + a + n.

is the difference between the rate of growth of productivity and the rate of growth of inputs.

is the difference between the rate of growth of output and the rate of growth of savings.

is the difference between the rate of growth of output and the rate of growth of inputs

is the difference between the golden rule level of consumption and the steady state level of consumption.

increase the capital per unit effective labour ratio.

replace capital that has depreciated.

equip new units of effective workers at the same capital per unit effective labour ratio.

do all of the above.