The surprising truth about the pay gap

Is it all about babies?

One of the few examples of genuine institutional prejudice against men is set to be closed this year. The Queen's Speech contained the brief announcement that:

Measures will be proposed to make parental leave more flexible so both parents may share parenting responsibilities and balance work and family commitments.

But a move towards genuine equality of parental responsibilities may prove to be a case of "be careful what you wish for" for many men, because who cares for children seems to have a strong relationship to who earns the most in society at large.

The existence of a pay gap between genders is an incontrovertible fact. The most recent in-depth study of the discrepancy, by Debra Leaker for the ONS in 2008 (pdf) found that, as of 2007, the median female wage was 11 per cent below the median male one. It's a striking figure, and made all the more relateable by the various ways in which people have presented it – none more so than the Fawcett Society, who "celebrate" No-Pay Day on October 30th each year, to represent the point at which women have done enough work to earn their salary if they were paid the equivalent of men (the discrepancy between the numbers – October 30th is only 83 per cent of the way through the year – is due to the Fawcett Society using mean rather than median salaries, and the Annual Survey of Hours and Earnings not the Labour Force Survey).

There are a lot of possible reasons for the gender pay gap, but one that is less discussed by those fighting to end it is motherhood. Indeed, there is barely a gender pay gap at all: it would be far more accurate to call it a birth pay gap.

The pay gap between women and men with no children is 8.0 per cent. The pay gap between women and men with four children is 35.5 per cent. (For one child, it's 12.3, two is 14.9, and three is 19.0).

Similarly, the pay gap between 18 and 24 year olds hovers around 1 per cent, and actually goes negative for 24 to 32 year olds. That is, the median 28-year-old woman actually earns more than the median 28-year-old man. It then rises steadily until it hits 20 per cent for over 45s:

The pay gap between men and women who are married, cohabiting or in a civil partnership is 14.5 per cent (to be clear, that is the pay gap between a woman who is married and a man who is married, not between a woman and the man she is married to); the pay gap between single men and women is -1.1 per cent. For the purposes of the point I am making, of course, one can read "single" as "unlikely to have a child any time soon".

It's not altogether surprising that having children increases the pay gap. Paid statutory maternity leave is 26 weeks; paid statutory paternity leave is two. Stepping off the career ladder for 24 weeks is always likely to hurt one's future earnings. Even the gap for childless women could be – unfortunately – explained by employers being wary of taking someone on who may then leave for six months.

All of which is to say that assigning men equal rights to parental leave may backfire if those same men are arguing for it out of a perceived sense of unfairness. There is, and always has been, a trade-off. A society which forces women to be the primary caregivers is also one which keeps men as the breadwinners. If a man wants to assume equal responsibility for looking after his child, he still finds that tricky to do (just as if a woman wants to assume an equal position in the world of business) – but the reason for that isn't a global conspiracy of feminists struggling to keep men out of their children's lives. It is the dreaded p-word: patriarchy.

End that, and men will be as free to share parental roles as we want. But if the gender pay gap equalises out, with men paying an equal share of the risk employers take on when they hire someone about to have a child and losing an equivalent chunk of career progression, we won't be the winners.

A father kisses his young child. 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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To stop Jeremy Corbyn, I am giving my second preference to Andy Burnham

The big question is whether Andy Burnham or Yvette Cooper will face Jeremy in the final round of this election.

Voting is now underway in the Labour leadership election. There can be no doubt that Jeremy Corbyn is the frontrunner, but the race isn't over yet.

I know from conversations across the country that many voters still haven't made up their mind.

Some are drawn to Jeremy's promises of a new Jerusalem and endless spending, but worried that these endless promises, with no credibility, will only serve to lose us the next general election.

Others are certain that a Jeremy victory is really a win for Cameron and Osborne, but don't know who is the best alternative to vote for.

I am supporting Liz Kendall and will give her my first preference. But polling data is brutally clear: the big question is whether Andy Burnham or Yvette Cooper will face Jeremy in the final round of this election.

Andy can win. He can draw together support from across the party, motivated by his history of loyalty to the Labour movement, his passionate appeal for unity in fighting the Tories, and the findings of every poll of the general public in this campaign that he is best placed candidate to win the next general election.

Yvette, in contrast, would lose to Jeremy Corbyn and lose heavily. Evidence from data collected by all the campaigns – except (apparently) Yvette's own – shows this. All publicly available polling shows the same. If Andy drops out of the race, a large part of the broad coalition he attracts will vote for Jeremy. If Yvette is knocked out, her support firmly swings behind Andy.

We will all have our views about the different candidates, but the real choice for our country is between a Labour government and the ongoing rightwing agenda of the Tories.

I am in politics to make a real difference to the lives of my constituents. We are all in the Labour movement to get behind the beliefs that unite all in our party.

In the crucial choice we are making right now, I have no doubt that a vote for Jeremy would be the wrong choice – throwing away the next election, and with it hope for the next decade.

A vote for Yvette gets the same result – her defeat by Jeremy, and Jeremy's defeat to Cameron and Osborne.

In the crucial choice between Yvette and Andy, Andy will get my second preference so we can have the best hope of keeping the fight for our party alive, and the best hope for the future of our country too.

Tom Blenkinsop is the Labour MP for Middlesbrough South and East Cleveland