Switzerland and Denmark go negative

Negative nominal interest rates arrive.

Government interest rates have, in real terms, been negative for quite some time. Britain, the US, and Germany are all in the position where they are being paid to borrow money. This creates some rather interesting incentives for governments: they can fund massive investment programs at minuscule expense, they can use money which would be spent on interest payments on more valuable projects, or they could even just stop collecting taxes entirely.

Unfortunately, political considerations have meant that most governments have been unwilling to show even the slightest innovation when responding to a situation in which the most basic rules of the game no longer hold. And, when negative interest rates came to business, the same thing happened.

Unilever and Texas Instruments are also borrowing below the rate of inflation, but when presented with free money, businesses – even ones like Google, supposedly staffed with the world's greatest blue-sky thinkers – don't do anything other than sit on monstrous cash piles waiting for a more favourable investment environment.

Now the trend has spread in a different direction. Two banks – State Street Corp. and Bank of New York Mellon – have announced that customers holding accounts in Swiss Francs or Danish Crone will be subject to a negative interest rate. That's negative in nominal terms, so in real terms it's an even sharper penalisation of savers.

These two currencies are experiencing some of the tightest squeezes because they are both pegged closely to the euro (Denmark is in ERM II and Switzerland has enacted a ceiling on how much it can appreciate relative to the currency), while also being in strong demand because they are not actually the euro – making them the star choice for investors who want to hold european assets without taking the risk that the eurozone will messily implode.

Conventional wisdom says that nominal negative interest rates can't happen. Savers will merely withdraw their money and keep it in cash to avoid the "fee". This doesn't seem to be happening, probably because the value of having a bank account in another countries currency is high enough that it's worth paying for the benefit. Conventional wisdom, yet again, is apparently wrong.

The Matterhorn, Swiss icon. 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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Tetris and sleep deprivation: how we can help emergency workers cope with trauma

First responders are at serious risk of developing PTSD during events like the Paris attacks. 

Some people seem able to deal with anything. They save a stranger from bleeding out in a bombed restaurant, protect passers-by from heavily armed gunmen, pull dead and dying people out of collapsed buildings, and they keep going because it is their job. These people are first responders.

When trauma goes on for days, as it has recently in Paris, however, the odds of them bouncing back from the violence, death and injury they are witnessing rapidly diminishes. They are at greater risk of developing a severe stress reaction known as post-traumatic stress disorder (PTSD). One study found that the worldwide rate of PTSD among first responders is 10 per cent, much higher than the 3.5 per cent rate among those not involved in rescue work.

Tetris to the rescue

So how best to address the problem? Research is in its infancy, but there are some promising studies. Emily Holmes’ group at the University of Cambridge has been looking at the benefits of playing Tetris, a video game, after a traumatic experience. The idea is that this could block the consolidation of traumatic memories so they don’t “flash back” later on.

For the study, her team first traumatised people by showing them distressing footage from public safety videos. The next day they invited them back into the lab to reactivate the memories with still images taken from the videos. One group then played Tetris for 12 minutes while the other sat quietly. Over the following week, the group who played Tetris had about 50 per cent fewer unwanted memories from the films compared to the group who didn’t.

The team concluded that playing Tetris helped individuals because it soaks up their visual processing capacity, making it harder for the brain to consolidate the visual parts of a traumatic memory.

Since it takes about six hours for the brain to cement a memory, the key is to play the game soon after trauma or within six hours of re-activating the traumatic memory. How long the helpful effects of playing Tetris will last and whether it will translate into helping people after real-life trauma is still unknown.

Talking it through

Other techniques, such as “updating”, taken from a highly-effective talking treatment for PTSD, may be more practical and easier to implement.

Like a detective, updating is a technique that focuses on finding new information and linking it to the case, the past memory. This is necessary because when the brain and body are in survival mode during trauma, the mind finds it difficult to encode all the relevant facts. Often key pieces of information that could make the memory less traumatic are lost. Updating links new information to someone’s memory of their trauma to make it less upsetting.

But can updating help to reduce unwanted memories after trauma?

We carried out a study, published in PLOS ONE, in which we traumatised people by showing them terrifying films of humans and animals in distress. We then divided our participants into three groups. One group watched the films again but were given new information about how long people suffered and whether or not they lived or died – essentially, they were updated. The second group watched the same films again but without the new information. And the third group watched films of humans and animals who were not in distress. The updated group had fewer traumatic memories and PTSD symptoms than the other two groups.

Updating is now being used by some UK emergency services. First responders will gather after critical incidents and update their memories of what happened before they go home.

Sleep deprivation

There are other techniques that may be helpful. One study found that depriving people of sleep may be useful in the aftermath of trauma.

But the same study found that a week after the trauma, people who had been deprived of sleep had the same number of unwanted memories as people who had slept well afterwards. Consequently, it remains unclear whether there would be any long-lasting benefits using this method. There are, however, certainly health risks linked to lack of sleep.

Still looking for a solution

To develop preventative interventions, we need to study newly-recruited emergency workers who haven’t yet suffered on-the-job trauma and follow them over time, spotting which “coping styles”, present before trauma, may predict their reactions afterwards.

For example, some people naturally react to stressful life events by dwelling on them, thinking about why they happened for hours on end. This strategy, called rumination, has been linked to PTSD in people who survived car crashes.

If rumination predicts PTSD in first responders, then preventative interventions could train people to spot when they are dwelling on an event and refocus their attention to the task at hand.

When we have identified which factors heighten emergency workers’ risk of developing PTSD, programmes can be developed to target those vulnerabilities. Only then can an intervention, directed at first responders most at risk of developing PTSD, properly protect them in their line of work.

The Conversation

Jennifer Wild is a Senior Research Fellow in Clinical Psychology at the University of Oxford

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