[The Duke]

And practically worthless in today's market glut. You can't change the law of supply and demand.

No, you can't. You can, however, replace the RATIO of supply to demand. It's easy, it's called "passing laws".

[balrog666]

You can, however, replace the RATIO of supply to demand. It's easy, it's called "passing laws".

And how do you prevent companies from leaving such oppresive taxation?

You can't and your laws won't work because you're attacking the wrong end of the problem.