Do we actually want to be a society of homeowners?

High rates of home ownership have large negative effects on the labour market. Why are we trying to boost it?

It is widely understood that Britain's housing market is (how to put this delicately) sub-par.

Nearly everyone agrees that there are problems which need fixing. We have a society built around homeowning, in which the average age of a first time buyer is inexorably rising. We have a social housing system which involves the state paying rents to private sector landlords, even as private sector rents are rising faster than inflation. We have a planning regime which is slow enough to deliver judgments that it encourages developers to create "banks" of property with permission, just in case the time comes to build. And widespread as these problems are, they are an order of magnitude worse in London and the South East.

But while there's agreement on the problems – and much discussion about what policies might ease them – there's far less examination of what the ideal housing market would look like.

Would homes be owned by individuals, companies or the state? Would multifamily accommodation (blocks of flats, in other words) make up a higher proportion of the housing mix, or is our love affair with the house permanent? How acceptable is flat sharing? What about room sharing? What are the minimum standards we should accept from new builds? Is the problem that mortgages aren't available, or that house prices are too high? Is the solution to insecure tenancies more secure tenancies or fewer tenancies full stop?

These questions seem uncomfortably micro-level to be discussing, but at least some of them are crucial to answer before we can make a real stab at implementing effective reforms to housing policy. And the most important one of all is the one which no-one wants to address: why do we want to own our own homes?

Obviously, given current policy, the answer is clear. The last two decades have been about shoring up the housing market, guaranteeing house prices will never fall, and making it easier to buy in. Conversely, renting has remained as insecure as ever, but with more and more people renting more and more houses, it's a landlord's market.

But if policy could be reformed to make it harder to buy a house but in a way which made renting a far better choice, should it?

One way to answer the question is to look at the wider effects of owning or renting your home. A paper from our own David Blanchflower and the University of Warwick's Andrew Oswald does just that, examining the effects of high rates of home-ownership on one aspect of the economy: the labour market.

Oswald argued twenty years ago that a lot of people owning their own houses would result in higher rates of unemployment. The reasoning is intuitive: a home is a burden, keeping you tied to one place; and a mortgage keeps you tied to a minimum salary. Insofar as it is easier to move out of a rental property than it is to sell a house and buy a new one, we would then expect people who own homes (all else being equal) to be less flexible about the sort of work they can take – and so we'd expect them to be more likely to be unemployed.

Aggregate it up, and we would expect economies with higher levels of home-ownership to have higher unemployment rates. And that's what Blanchflower and Oswald have found:

We find that rises in the home-ownership rate in a US state are a precursor to eventual sharp rises in unemployment in that state… A doubling of the rate of home-ownership in a US state is followed in the long-run by more than a doubling of the later unemployment rate.

Oswald's 1990s argument is backed up by the fact that areas with higher ownership have lower mobility – as we would expect – but there are two further effects that the authors find.

The first is that high home-ownership areas have longer commute-to-work times. That could be because home-ownership tends to promote less dense housing, due to the difficulties in selling rather than renting multifamily accommodation, and the contrary difficulties in renting rather than selling single houses.

The second is that high home-ownership areas have lower rates of business formation. The authors speculate that "this may be due to zoning or NIMBY effects", and offer it as a point for future research.

The conclusion, that "the housing market can generate important negative externalities upon the labor market", poses some tricky questions for nearly everyone discussing housing policy in Britain today. We may still want to build more, lower rents, and improve quality of life for tenants; but this research suggests that, rather than making it so that more people can buy their homes, we should make it so that more people don't feel like they have to buy their own homes. In short, make renting fairer, not buying easier.

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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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.