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.
D
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Jerry's Jellybean Factory produces 2,000 pounds of jellybeans per month and sells them in a perfectly competitive market. The marginal cost is $3 per pound, the average variable cost is $2 per pound, and the beans sell for $4 per pound. Jerry
A) is maximizing profit. B) is incurring an economic loss and should shut down. C) could increase his profit by producing more beans. D) could increase his profit by producing fewer beans. E) could increase his profit by raising the price of his beans.
If the basket of goods and services used to calculate the CPI cost $200 in the reference base period and $450 in a later year, the CPI for the latter year equals
A) 200. B) 225. C) 325. D) 450.