Benefits of site value tax over stamp duty

Seeing that it seems the hc will be changed to a site value tax , can anyone explain the benefits of this type of tax outside of a steady stream of revenue.
A lot seems to be made of how it brings us into line with other eu countries and how this type of tax prevents property speculation.
How does that work , it would seem to me to discourage people from buying HOMES to begin with and possibly live in rented acommodation or local authority housing , surely this leaves people in general with a more transiant attitude to their communities, and possibly more reliant on the state for housing especially later on in life.
In fact on the face of it does a transaction based tax ie stamp duty not discourage property speculation more so

link removed as it's unsafe

A Site Value Tax (SVT) is one type of proerty tax.

Please read the above link.

Ronan Lyons of www.daft.ie is a supporter of a SVT, as am I.

See here:

link removed as it's unsafe

Just to warn folks, both of the above links activate a virus alert with my AVG.

A Trojan , bailouttheeubanks.exe in a small €100 folder

Works ok for me on a smartphone, and ok on laptop. Mind you, I think our AVG has expired.