It tackles offshore profit movement, because the companies buying pens / pencils / paper, and paying for any services within Australia no have to pay more. They can still shift profit over seas, but 5% less of it because not it's going into GST. The only way to reduce GST is to spend money on stuff that costs GST.
Raising GST by itself will not stimulate the economy, in fact raising without an income payment reduction will kill the economy. Personally I'd love to see a drastic economic shift to GST in Australia, which will also simplify our tax system in some respects.
How about 20% GST, apply it to all sectors and reduce PAYG by half.
