Keynesian Economics

Need a little help here.

Could someone explain to me what this is all about?
- Advantages
- Disadvantages
- Which countries use them and why?

I've read some stuff about it online but I don't understand some of the terms that are being used. Thanks.

httx/mises.org/media.aspx?action=search&q=keynesian

choose your poison, these guys can do it better than me




but in essence its " print more money so people will consume more"
though Keynes himself would no doubt be appalled at how far his name is taken these days....as keynes believes the debt SHOULD be payed back if I am not mistaken