[問題] 經濟學神人請幫我解答~
這是之前我們經濟期末考的一個題目
The market demand for pizzas is
(a) the vertical summation of the individual prices at each quantity.
(b) the horizontal summation of quantities at each quantity.
(c) a movement along a given demand schedule of curve.
(d) the quantity demanded changes as prices changes.
Ans:(d)
為什麼不是(b)呢?
請大大幫我解答Q____Q 感激~!
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