a + barter economy ?

[Li singh]

Hi
Can 'a' be put before 'barter economy?
Thank you

 

[Thomas Tompion]

I can't think of a reason why not.

 

[Li singh]

I can't think of a reason why not.

Thank you very much. Please help me with what you think about my question: What is a barter economy?
Here, I used 'a' before ' barter economy'. One of my seniors told me that indefinite articles should not be used before 'economy' which is an abstract noun.
Thank you in advance

 

[Thomas Tompion]

There are different sorts of economy - barter economies, market economies, command economies.

When you compare two sorts of economy, you could easily say things like: What is the difference between a barter economy and a market economy?

I don't agree with your senior here. I don't think the use of an article depends entirely on whether a noun is abstract or not.