a. where P = MC = AC.
b. at the lowest point on its long-run average cost curve.
c. where its long-run average cost curve is tangent to its horizontal demand curve.
d. All of the above are correct.
In 1984, British Prime Minister Margaret Thatcher decided to shut down so-called
“uneconomic” coal mines owned by the government. The National Union of
Mineworkers protested, asserting that there was enough coal in the mines to continue
current levels of production for years. Thatcher implicitly argued that her decision was
economically sound because, at any practical level of output, for each “uneconomic”
mine,
a. MC > AC.
b. for every input, MPP > APP.
c. MC > MR.
d. AC > MC.
If a firm sells its output at a price greater than AVC, it will earn economic profit.
a. True
b. False