The phrase "a model of devolution" is correct and usable in written English.
It can be used when discussing a framework or example that illustrates the principles or practices of devolution, often in a political or administrative context.
Example: "The Scottish Parliament is often cited as a model of devolution, showcasing how power can be effectively transferred from a central government to regional authorities."
Alternatives: "an example of devolution" or "a framework for devolution".
"We need a new model of devolution which clearly defines what is devolved and what is not, as in Scotland," she said.
First Minister Carwyn Jones - who is no fan of Scottish independence - has called for a "reserved powers" model of devolution, where powers are assumed to be devolved unless specifically reserved.
So, for example, it seems clear that English votes for English laws would be easier to implement if Wales were to move to a "reserved powers" model of devolution (as now supported by all the parties in Wales) - with the law clearly setting out what is reserved to Westminster and what is not to avoid legal disputes.
She also called for the simplification of an "overly complex" model of devolution by bringing it in line with the Northern Irish and Scottish devolution settlements.
Crabb will announce that he is to scrap the conferred model of devolution, in which Westminster grants certain powers to Wales, in favour of a Scottish-style reserved model in which all powers are presumed to be devolved unless specified otherwise.
In February Mr Cameron and Mr Clegg offered to devolve income tax-raising powers to Wales to move it to the "reserved" model of devolution that Scotland uses (whereby powers are assumed to sit at the devolved level unless specifically withheld for Westminster).
Whatever model of devolution English cities follow, it seems Manchester is first in line.
Federalism seems to be working out for Germany so could it – in a sort of constitutional re-import – be a model for a "devolution revolution" in the UK?
Baroness Jenny Randerson also said the model of Welsh devolution needs to be rewritten as it is "overly complex".
This attitude betrays a misunderstanding of devolution.
