New medicines are, unsurprisingly, a really good thing

So let's have more of them.

Via Marginal Revolution, a research paper which looks at the value of pharmaceutical innovation:

Pharmaceutical innovation is estimated to have accounted for almost three-fourths of the 1.74-year increase in life expectancy at birth in the 30 countries in our sample between 2000 and 2009, and for about one third of the 9.1-year difference in life expectancy at birth in 2009 between the top 5 countries (ranked by drug vintage in 2009) and the bottom 5 countries (ranked by the same criterion).

So having lots of new drugs is a very good thing for your country's health. While this may seem unsurprising, it actually goes against the grain of one of the criticisms of so-called Big Pharma, which is that novel pharmaceuticals are being invented more to game the patent system than anything else.

The argument goes that Pfizer, for instance, will shortly lose its patents on Viagra, which made almost £2bn for it in 2008. Rather than cede the market to generics, there's a strong incentive to slightly reformulate it, push for new patents on the chemically-different but practically identical creation, and then aggresively market it "viagra 2.0" or something. If that type of practice were common, we would see declining usefulness from pharmaceutical novelty.

Which means this is good news! Drug companies aren't ripping us all off by only pretending to have new, useful drugs. They actually do.

The next question, of course, is how to encourage pharmaceutical companies to do that more. Right now, we use patents. But is there another way?

HIV and AIDS campaigners carry a giant balloon in the shape of a pill during a protest rally in New Delhi on February 10, 2012. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Jeremy Corbyn challenged by Labour MPs to sack Ken Livingstone from defence review

Former mayor of London criticised at PLP meeting over comments on 7 July bombings. 

After Jeremy Corbyn's decision to give Labour MPs a free vote over air strikes in Syria, tonight's Parliamentary Labour Party (PLP) meeting was less fractious than it could have been. But one grandee was still moved to declare that the "ferocity" of the attacks on the leader made it the most "uplifting" he had attended.

Margaret Beckett, the former foreign secretary and former deputy leader, told the meeting: "We cannot unite the party if the leader's office is determined to divide us." Several MPs said afterwards that many of those who shared Corbyn's opposition to air strikes believed he had mishandled the process by appealing to MPs over the heads of the shadow cabinet and then to members. David Winnick declared that those who favoured military action faced a "shakedown" and deselection by Momentum activists. "It is completely unacceptable. They are a party within a party," he said of the Corbyn-aligned group. The "huge applause" for Hilary Benn, who favours intervention, far outweighed that for the leader, I'm told. 

There was also loud agreement when Jack Dromey condemned Ken Livingstone for blaming Tony Blair for the 7 July 2005 bombings. Along with Angela Smith MP, Dromey demanded that Livingstone be sacked as the co-chair of Labour's defence review. Significantly, Benn said aftewards that he agreed with every word Dromey had said. Corbyn's office has previously said that it is up to the NEC, not the leader, whether the former London mayor holds the position. In reference to 7 July, an aide repeated Corbyn's statement that he preferred to "remember the brilliant words Ken used after 7/7". 

As on previous occasions, MPs complained that the leader failed to answer the questions that were put to him. A shadow minister told me that he "dodged" one on whether he believed the UK should end air strikes against Isis in Iraq. In reference to Syria, a Corbyn aide said afterwards that "There was significant support for the leader. There was a wide debate, with people speaking on both sides of the arguments." After David Cameron's decision to call a vote on air strikes for Wednesday, leaving only a day for debate, the number of Labour MPs backing intervention is likely to fall. One shadow minister told me that as few as 40-50 may back the government, though most expect the total to be closer to the original figure of 99. 

At the end of another remarkable day in Labour's history, a Corbyn aide concluded: "It was always going to be a bumpy ride when you have a leader who was elected by a large number outside parliament but whose support in the PLP is quite limited. There are a small number who find it hard to come to terms with that result."

George Eaton is political editor of the New Statesman.