[問題] 我有一個問 題~可否幫忙解釋一下

[dalesky (北極星)]

4. When a discouraged job seeker gives up and stops looking for a job, the unem
ployment rate:
remains unchanged.
Incorrect. It decreases.

declines.
Correct.

increases slightly.
Incorrect. It decreases.

increases substantially.
Incorrect. It decreases.

這是教課書的(網站上)的題目~我不知為它的答案是b~~declines~~~

剛好我的想法是相反 的~~~so可否有高手幫忙解釋一下?謝謝

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