What can Iceland teach us about a wealth tax?

The country instituted an emergency tax for three years to sort out its problems. Should we?

Iceland’s remarkable recovery can serve as a lesson to the UK.

Having recently paid back its IMF loan quicker than was predicted, Iceland's unorthodox reaction to the crisis has been hailed by economists, policy-makers and the IMF itself. In addition to letting its financial system fail, the country introduced capital controls (which have been met with some skepticism as they arguably prevent foreign direct investment and therefore stunt growth) and leveraged its fiscal policy to pay off debt whilst sustaining consumption. It is this last point the UK should pay heed to, particularly as Clegg declares his support for a wealth tax.

The general theme of Iceland’s 2010 tax reform (pdf) is one of increasing tax revenue whilst offsetting the burden for lower income individuals. For instance, while fuel taxes and VAT were increased, the revenue was partially re-channeled towards public transportation and bottom-quartile households compensated for higher food, heating, and transport costs. Furthermore, in an effort to raise income without affecting consumption, the government implemented an emergency wealth tax rate for the period of 2010-2013. As of January 2011, one year after introduction, the tax rate is 1.5 per cent of net capital for single individuals with more than ISK 75,000,000 (£390,000) or 100,000,000 (£519,000) for married couples. By taxing the top 2.2 per cent of the population, the Icelandic government was able to raise 0.3 per cent of GDP in revenue every year.

However, an IMF report on the country's reform argues that the wealth tax should be abandoned as capital controls ease. Because the tax is recurring, the only thing that is stopping the wealthy from offshoring capital is the simple fact that they’re not allowed to. Therefore, IMF economists argue that the revenue from the wealth tax should be replaced by a less mobile base (i.e. real estate and high income). This does not, however, discredit the Icelandic wealth tax as a possibility in the UK; it just means that, as suggested by German scholars, it should be a one-off levy. (For an in-depth assessment of Clegg’s wealth tax go here)

Meanwhile, the biggest lesson the UK can learn from Iceland is that its recovery was at least partially fuelled by the government's struggle against depressed consumption.

Bloomberg's Omar Valdimarsson writes:

Iceland’s growth “is driven by private consumption, investment has picked up strongly and even though, when you look at net exports, those have a negative contribution to growth, it is mainly because imports have been strong, reflecting strong consumption and an increase in income and the healthy expectations of households,” Zakharova said. “Still, exports have been increasing very strongly. Last year was a banner year for tourism. These are all really positive things.”

A handful of Icelandic banknotes are withdrawn from an ATM. Photograph: Getty Images
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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.