When the wealth of the people is in real estate, housing prices have to be kept up.
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This was the main driver of quantitative easing (money printing) by Western governments. Their voter base were/are homeowners.

Thus the artificial high house prices we see today. Market manipulation.

You are right about the effective rate of tax being paid by these corporations but imposing the 17% rate is at least a target to aim for. Funny how they fired so many tax inspectors.

People may be waking up?