Duncan Smith’s resignation. The quiet man roars.

This zinger of a departure is about social justice as well as EU membership – and his farewell letter is a missile aimed at Osborne’s character and conduct.

Cameron’s reply to the Work and Pension Secretary’s resignation letter: full text

“I am puzzled and disappointed that you have chosen to resign.”

Duncan Smith’s resignation letter: full text

I am unable to watch passively…fiscal self imposed restraints that I believe are more and more perceived as distinctly political rather than in the national economic interest.”

Matthew Oakley: Will the Conservatives honour their pledge of halving the disability employment gap?

Sanctions have failed – help and rewards for going back to work are needed.

Heidi Allen: A crucial vote today. Let’s not reduce support for sick people until we know its replacement.

The Commons should not reject this Lords amendment to the Welfare Reform Bill.

Nick Herbert: The Prime Minister’s renegotiation isn’t vanishing away. It’s delivering for Britain.

The Chair of Conservatives for Reform in Europe replies to Paul Goodman’s article of last week arguing the opposite.

Ed Holmes: Dire employment outcomes for people with disabilities demand radical reform

Piecemeal changes have been tried and were found wanting.

Alexandra Jones: Osborne can get the urban benefits bill down by allowing cities to keep the savings

The housing shortage is pushing benefit bills up in the prosperous South East. Here’s how to get them down.

Iain Duncan Smith: How this Government is helping to reform schools, get people into work – and boost life chances

The Prime Minister’s speech yesterday was a reminder that while Labour are obsessed by transfering income our focus instead is on improving lives.

Matthew Oakley: Five ways to help one million more disabled people into work

The Government’s ambition to halve the disability employment gap is a weighty one. But it can be done.

WATCH: Oxley rubbishes the Prime Minister’s renegotiation

“…a set of trivial demands, something that isn’t going to fundamentally change the relationship between Britain and the EU.”

Hannah Titley: Duncan Smith’s next great challenge – reforming sickness and disability benefits

New Reform analysis of sickness benefits over the past five years found a persistently high caseload that is increasingly young and mental health-related.

John Glen: The Government must not be distracted from delivering Universal Credit

The policy is likely to be the most important legacy of a Conservative welfare agenda. We must stay the course.

Howard Flight: Osborne continues to talk dry but act wet

The Autumn Statement and Spending Review were far too interventionist.

Theresa Villiers: An agreement that brings new hope to Northern Ireland

It resolved a four-year dispute over welfare reform – and paves the way for completion of the devolution of corporation tax powers.