[Grimnir]

What laws and changes would you make?

First thing I would do is seize all the assets of banks throughout the world.
Set up 1 national bank in each country and transfer all the people's bank accounts to these national banks.
Once all this has been done each national government would keep 75% of the remaining money and 25% returned to the board of each bank, with a note saying good luck in your future endeavours
The stock exchange would be abolished too.

In UK I would close the gap between rich and poor.
Tax would start at 25% and increase upto 75% on a sliding scale.
Minimum wage set at £10 per hour.
So if they do 40 hours they get 400 per week and 20 000 per year.
At a certain amount tax would increase to 26% and then 27% and so on.
Everyone's wages would be increased accordingly so that after tax deducted their income has increased by at least 10%

Standard of living would be greatly improved and the government would have so much more tax to spend on schools, hospitals etc.
Police, soldiers and similar public service jobs would have a 50% pay rise.

Set up a new unemployment scheme. If someone has been out of work for 3 months, they would be given a job automatically in their chosen field. Eg Construction, admin, manufacturing etc
Once someone who was claiming benefit has found a job they would have the amount of tax they pay increased as a way of paying back the benefit.
Once they have paid back all the benefit, they would then have their tax returned to normal.