How might size affect a nation's willingness to grant citzenship

If a nation is very small they could only accept a certain amount of people. They are small so they only have so much food, space, etc. to provide for its citizens. Though if the nation was large such as the US or Canada they can be a little less strict and allow more people in.

That president would be none other than president warren g harding , return to say of life before wwi