Osborne will score a financial own-goal tomorrow

The Chancellor, in turning down the chance to implement a Financial Transactions Tax, will cost the UK dearly.

A fiscal measure that could raise £8bn, boost GDP by 0.25 per cent, provide vital funds for job-creation, infrastructure projects and poverty reduction, calm excessive speculation and reduce the regularity of financial crashes would seem like a no-brainer for a Chancellor. Struggling to reduce the deficit and bring public finances under control, George Osborne is set to score an own goal by refusing to sign up for the Financial Transaction Tax (FTT) which is rapidly becoming a reality in Europe.

Twelve European countries, including the big economies of Germany, France, Italy and Spain, have agreed to a small transaction tax of 0.1 per cent on equities and bonds and 0.01 per cent on derivatives. The initiative, which could generate €37bn per year, is expected to be given the green light by the European Parliament on 12 December.

The UK government’s reasons for rejecting the FTT are flawed on many counts. The Chancellor stubbornly clings to the argument that the FTT must be global to work. This ignores the fact that over 40 countries including some of the world’s leading financial centres and dynamic economies, have successfully implemented FTTs.

Hong Kong raises £1.7bn a year through taxes on derivative transactions while South Korea raises £3.8bn. Even Switzerland and the US have their own taxes on transactions which do not seem to have harmed their reputations as financial centres. Indeed, the UK’s very own stamp duty of 0.5 per cent on share transactions currently raises about £3bn a year for the Treasury; much of this tax (around 40 percent) is paid by people, including non-British, based abroad, who trade in UK shares.

Another myth often touted is that ordinary people and pensioners will end up paying the price. But the rate for the FTT is set so low precisely to avoid hitting longer term investments such as people’s pensions. On the contrary, a paper published this week shows that the FTT is an opportunity to help safeguard pensioners’ investments through reducing short-term speculative activity and encouraging pension funds to return to their traditional, less risky role as buy-and-hold investors - exactly the sort of cautious, long-term funds which experienced the most growth over the rocky 2008-2010 period.

Sparked by recent low interest rates, the increased turnover of assets amongst pension funds contributes to management costs of between two and 20 per cent. It is these high fees - reaped by intermediaries such as advisers, managers and brokers - that are having a major impact on pensioners’ returns.

The tax will also help improve market stability by reducing high-frequency trading including computer-driven trading in which shares are bought and sold hundreds of times a second. Virtually unheard of seven years ago, high frequency trading now accounts for up to 77 percent of all trading in UK equities.

Dictated by computers, too fast for humans to monitor, high frequency trading can create sudden crashes and wild fluctuations in stock prices that bear no relation to market fundamentals and serve little economic purpose. Applying a tiny tax every time a stock is traded will dramatically reduce the incentive to use computers at lightening speeds as the tax outweighs the wafer-thin profits. This will improve financial stability and help reduce the likelihood of future crises, which can lead to a higher level of GDP in the future.

If a levy of 0.1 per cent also makes other elements of City trading unprofitable, you have got to ask how valuable was that activity in the first place?

By triggering a shift away from short-term trading in favour of long-term holding the FTT will thus help reduce misalignments in markets and their subsequent abrupt adjustments or crashes, decreasing the likelihood of future crises. Indeed, countries with FTTs were amongst those least affected by the 2008 crash.

At a time when the UK government continues to struggle with the impact of a crisis that will according to the Bank of England, ultimately cost the UK at least £1.8trn and as much as £7.4trn in lost GDP, it seems reasonable to expect the financial sector, largely responsible for creating the crisis, not just to contribute to repair the damage but also to adopt measures to help reduce the likelihood of future crises.

To us and 50 other financiers who wrote to David Cameron and other European leaders in support of the tax, it is clear the FTT would help rein in markets, help kick-start national economies and provide money to help the world’s poorest countries. The FTT will shortly be a reality in Europe’s biggest economies. The UK cannot afford to ignore it.

Campaigners for a FTT protest in Westminster. Photograph: Getty Images

Jack Gray is currently an Adjunct Professor at the Paul Woolley Centre for Capital Market Dysfunctionality, University of Technology Sydney and an adviser to pension funds in Australia and overseas.

Professor Stephany Griffith-Jones is Financial Markets Director at the Initiative for Policy Dialogue, Columbia University.

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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.