It's are because the phrase economics is used as a plural term in the following sentence.
Explanation:
I know about the same as last time I have free time I
"Leonard is a very good writer he manages to get into his characters and build a believable situation." "The writing is tough and realistic. The approach does owe something to George V. Higgins, but Leonard is nobody's
follower, and he has a style of his own.
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Personification- it's when you add a human-like characteristic to an object or animal.