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Ground rent means
more profit from land.

Unused land will be sold to avoid ground rent.
So land prices will go down at first.

But in the long term, the
faster expanding economy
will create more demand,
so more profit.

Or people can sell their land to the government at a profit. The government then rents it out again for a dollar plus ground rent.

Government funds this by selling 30 year bonds: when the bond matures the government sells the land for even more money. Everyone profits.