Keynesian boondoggles are acceptable in principle, they say, but they cite Japan in the 1990s as proof that such spending does not always stimulate the economy: better to boost businesses' cashflow by easing their tax burden.

ECONOMIST: The politics of a shrinking economy

Robert Elms, a transplant surgeon at the Royal Liverpool Hospital, believes the principle of compensation would be more acceptable to many than payment.

BBC: Why not allow organ trading?

The BBC's environment analyst Roger Harrabin said chancellor George Osborne rejects the target and the coalition was seeking a compromise acceptable to the Lib Dems such as committing to the principle but leaving details until after the next election.

BBC: Ed Davey