With every fare rise and fee increase, the government decides to defy the inflation hawks

This year and next, a full 0.6pp of inflation will be because of direct government decisions.

Last week, I wrote about how inflation is worst for those who spend a large proportion of their income on essentials. The cost of essentials, defined as food, housing, energy and travel, increased by 3.7 per cent last year, well above CPI's 2.8 per cent increase. Since the recession, essentials have increased in price by more than 33 per cent, while nominal incomes have gone up by just 10 per cent.

A large driver of that increase, however, is the direct effect of government policy. For instance, council tax, road tax and almost all public transport fares are set by the state, as are most of the costs of highly-taxed goods like alcohol, tobacco, fuel and heating and power.

Now, the weekly briefing note produced by Deloitte's Chief Economist, Ian Stewart, makes clear that a similar effect is happening to the headline rate of inflation. Stewart writes:

In its latest Inflation Report, the Bank noted that one of the reasons behind persistently high inflation was higher 'administered and regulated prices', i.e., prices affected by government or regulatory decisions. Of these, a key contributor has been the rising price of education, largely reflecting rises in undergraduate tuition fees. Another contributor is higher domestic energy prices as a result of current climate change and energy policies and further investment into the UK's gas and electricity distribution networks.

According to the Bank, these two drivers have, together, amplified UK inflation by 0.4 percentage points last year and will do so by 0.6 percentage points this year and the next.

The latter reason is something you hear a lot about from inflation hawks, given the frequent coincidence of climate scepticism and fear of inflation; the former, not so much. When it comes down to it, one way to keep inflation low would be to fund essential public services through general taxation or deficit spending, neither of which tend to be routes advocated by inflation hawks.

Stewart also pokes the Bank of England about whether or not it is strictly applying its mandate. Technically, the Bank has only one role: to keep inflation as close to its 2 percentage points target as possible, and certainly within one percentage point either side. But instead, under both Mervyn King and, it is expected, Mark Carney, the bank has refused to take actions to bring down inflation if they would harm growth. Stewart writes:

This approach has led some analysts to point out that the Bank now seems to place greater emphasis on growth than on its explicit inflation target. It is not just that, in the words of the Bank's governor Sir Mervyn King "policy is exceptionally accommodative to growth". A debate is underway as to whether the Bank of England, and indeed other central banks, should run even easier monetary policy, possibly risking higher inflation in the long term, in order to bolster growth. In December, the US Fed set itself an additional target of bringing down the US unemployment rate to below 6.5%, before it considers raising interest rates.

Mark Carney, the next governor of the Bank of England, has recently said that central banks should consider radical measures, including commitments to keep interest rates on hold for extended periods of time or scrapping inflation targets, to boost growth.

Needless to say, the fact that the Bank of England is not crushing our already anaemic growth to bring inflation down from around 3 per cent to around 2 per cent is a feature, not a bug, in the system. Regardless of what the inflation target actually is, the fact that the Bank tends to be run by extraordinarily talented individuals who are working for the financial health of the country means that they are prepared to make sensible decisions even if they aren't necessarily the prescribed ones. But the choices raise further questions about whether the monolithic inflation target is the right way to run a central bank in the 21st century.

A hawk. 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.