A group of business leaders has backed Scottish independence because it appears the option of further devolution will not be part of the referendum.
In an open letter published by Yes Scotland, the group said it believed Scotland needs full control over its economic powers to stimulate growth.
A deal on the staging of the independence referendum reached a "positive conclusion" on Friday following discussions between the Scottish Secretary and Deputy First Minister.
The full agreement will now be presented to Prime Minister David Cameron and First Minister Alex Salmond on Monday for approval.
It is expected to be held in Scotland in autumn 2014, with a single Yes/No question on whether Scotland should leave the United Kingdom on the ballot paper. It is also expected that the agreement will make provisions for 16-year-olds in Scotland to vote in the referendum.
The business people had previously supported the campaign to have a vote for a strengthened form of devolution on the referendum ballot, but that no longer appears to be an option.
The letter is signed by Malcolm Fraser, the founder of Malcolm Fraser Architects; James Aitken, a partner in Legal Knowledge Scotland and one of the authors of the 'Devo Plus' option; Michelle Rodger, founder of Tartan Cat Communications; Dan Macdonald, chief executive of Macdonald Estates; Peter De Vink, managing director of EFGH; and Jay Spence, boss of Infiniti Properties Management.
It is also signed by Jim McColl, one of the country's richest men and chief executive of engineering firm Clyde Blowers. Mr McColl announced his support for independence last month.
The letter reads: "It now looks certain that the UK government has rejected the possibility of a second question on more economic powers for Scotland in the 2014 referendum. We believe that if our nation is to realise its full potential and if we are to deliver a fairer, more competitive and faster growing economy, Scotland's parliament needs the full range of economic and social levers.
"In the absence of any clear statement from the other parties in the "No" campaign, the only choice which will result in the Scottish Parliament having the fiscal powers it so badly needs is to vote "Yes" for independence."