Hi,
Here a sentence has been broken into 4 parts.We need to identify which parts are incorrect grammatically or usage wise.
1. So once an economy is actually in recession,
2. the authorities can, in principle, move the economy
3. out of slump - assuming hypothetically
4. that they know how to - by a temporary stimuli.
I feel the first and the second part is correct.In the third and the fourth part,I feel there is an incorrect usage of the hyphen.
I just went through a discussion on this site regarding hyphen usage.Dave had put up an article from the Economist Style guide
regarding the usage of hyphen.But in that,I did not see hyphens being used as pauses in a sentence(thisis done by a comma or a semicolon).Please correct me if I am wrong.Also tell me if there is someting else wrong in any part of the sentence.