Since the Devolution Referendum of 1997, in which the Scottish electorate voted for devolution, a Scottish Parliament was reconvened under the Scotland Act 1998 and is considered to be a devolved national, unicameral legislature of Scotland. The Act delineates the legislative competence of the Parliament – the areas in which it can make laws – by explicitly specifying powers that are "reserved" to the Parliament of the United Kingdom. The Scottish Parliament has the power to legislate in all areas that are not explicitly reserved to Westminster. There is a clear separation of responsibility of the powers of both the UK government and the devolved Scottish Government in relation to the formulation and execution of national economic policy as it affects Scotland – this is set out under Section 5 of the Scotland Act 1998.