econ......a question

producer or consumer good depends on the used.
If it's used by producer to assist production (i.e., input), then producer good.
If it doesn't, then consumer good.

So 1, it's used in library, library, is a kind of production, it's producer good.
(production is to transfer some inputs to outputs (borrowing book here))

2. consumer good, that's used directly by customers.

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1.consumer good 因為係比消費者用的
2.都係同上