Future NDP Policies?

[-1=e^ipi]

A unadjusted flat tax rate (one without rebates or exemptions) is a regressive tax because it doesn't take relative income or spending into account. Pretty simple.

You are mixing up 'relative to resources' with 'relative income'. Notice the word 'to'.

[Icebound]

$1 is worth more the less money you have. So, no. It's not fair.

$1 is not worth more or less. It buys exactly the same thing for the less wealthy as it does for the more wealthy.

Having said that, the less wealthy is very likely to spend considerably fewer of them, and will therefore pay proportionally less money in taxes. And it's easy to tweak with a GST rebate for less wealthy, if you really want. Or, when transitioning from income taxes to VAT, you leave SOME extra tax on the higher incomes, and none on the lower, etc....

Now, not to say that it could not be made even MORE fair... FTT, as I suggest ... one other point in favor of FTT is that it would trap a lot of the grey-market transactions, which are now illegally avoiding existing VATs (GST)

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[-1=e^ipi]

It buys exactly the same thing for the less wealthy as it does for the more wealthy.

Yes, but the less wealthy get more utility out of it than the more wealthy.