It would prevent the completion of the single market and eventually lead to its disintegration.

ECONOMIST: Europe's constitution

The completion of the single market was set in train only in the 1980s and remains a work in progress.

ECONOMIST: Fit at 50? | The

"We would like the EU to focus on completion of the single market, where there are still absurd barriers in everything from architecture to the legal profession, " he added.

BBC: Boris Johnson calls for 'pared down' EU relationship

But he said the UK should focus on three areas - completion of the single market, enlargement of the EU and trade deals with the US and other leading economies - where progress could not be achieved alone and which would make both the UK and the EU a "more effective global power".

BBC: EU exit would be 'fatal mistake' says Ken Clarke

The next phase of our growth will be driven in significant measure by the completion of that integration, the creation of a single and indissoluble news organization uniquely equipped to supply a continuous stream of scoops, analysis, features and penetrating investigations: in real time, on our digital platforms and in the newspaper, to a global audience of hundreds of millions.

FORBES: New WSJ Editor Gerard Baker Puts His Team In Place

In just a single generation, America has fallen from first to ninth in college completion rates for all our students.

WHITEHOUSE: Educational Excellence for Hispanic Americans

Building condos also takes longer than a single-family home, leaving the developer at risk should the market sour before completion.

WSJ: Toll Brothers Goes Condo