What is the meaning of 'pool in' ?

English as a Second Language English Vocabulary, Grammar and Idioms
1

Tan Eng Chye is Deputy President and Provost of the National University of Singapore. He said, “Ranking is invariably based more on research because, if you look at educational outcomes, it is harder to gauge.”

He also said research spending is important. “And if you pool in a lot of money into research, then, I think, you will go up quite quickly (in the rankings).”

2

If a lot of people/groups units to do something, they ‘pool together’ so here on face value it looks as if he is saying ‘if you group together and combine your money then put it into reseach…’

However, it’s also possible that ‘pool in’ has been used incorrectly in place of ‘put in’.

3

thanks