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The Dangers of Negative Interest Rates François Masquelier, SimplyTREASURY, contemplates the benefits and drawbacks of negative interest rates and concludes their worth to treasurers and the world economy in general.

The Dangers of Negative Interest Rates

The Dangers of Negative Interest Rates

By François Masquelier, Founder of SimplyTREASURY and Honorary Chairman, European Association of Corporate Treasurers

Are negative interest rates really good for treasurers, and for the world economy in general? There are admittedly some benefits, but there are many more drawbacks. Perhaps a return to zero rates would bring the greatest overall benefit.

A few years ago, the unthinkable happened: negative interest rates were introduced. Investors could no longer rely on financial dogmas alone. Financial manuals had to be revisited because financial principles had fundamentally changed. Policies such as Quantitative Easing (QE) were practised by central banks. But what does all this mean in the real world?

There are both positive and negative consequences of these below-zero interest rates for the euro. On the plus side, governments can or should deleverage, or to be more precise, they should ease debt service (deficits have risen since the crisis, but the cost of debt has fallen thanks to negative rates). Corporates were able to take the opportunity to gradually deleverage and restructure their debt. For example, the telecoms and mass media company Altice has been able to reduce its cost of debt by $700m per year.

According to the International Monetary Fund (IMF), costs of financing have reached their lowest level since 1975. Distributed dividends have increased (prior to the Covid-19 crisis), sometimes quite dramatically, or share buy-back programmes have been (re)launched, because companies did not want to accumulate cash and destroy value. No shareholder will complain. The attraction of cryptocurrencies, which do not generate interest (but do not cost either) has increased, despite their volatility. Low rates also generate interest in alternative products (funds) and so-called dynamic investment products - and corporates are revisiting their policies to allow investment in other asset management instruments. Lastly, these negative rates have allowed many people to acquire a house at a more attractive price.

However, these very cheap rates also have disadvantages. For starters, they are potentially creating a dangerous real estate bubble. When bubbles burst, the consequences can be dramatic. We can now borrow for 20 years at less than 1%. This below-zero percent environment has become extremely difficult for banks. Although they try to limit benefit from negative rates for borrowers with a unilateral ‘floorage’ (at zero) and to charge (when possible) interest on deposits, the situation is not sustainable in the medium term. They have floored all borrowings to ensure minimum margins. But some institutions cannot easily charge negative rates to high income earners. All-in negative rates are weakening banks, insurance companies and pension funds. The guaranteed minimum rates, imposed by the EU Member States, penalise them, forcing them to seek returns and yields in alternative funds, real estate or private equity to offset the shortfall, which is almost impossible in the medium term. Private Equity (PE) funds are seeing their Internal Rate of Return (IRR) reduced and it is difficult to find new investments and targets at attractive prices, without high multiples. Many funds have shifted to PEs to compensate for low rates in prime currencies. Even cash pools are affected by negative rates on transfer pricing. It is difficult to justify real rates applied while remaining at arm’s length.



Pros and Cons of Negative Interest Rates


  • Significant reduction of Member States’ debt (potentially negative all-in rates for long periods
  • Cheaper cost of funding in general (although floored at zero)
  • Potentially lower WACCs impacting DCFs (increasing valuation)
  • Supposed to boost economy (up to a certain limit – if not, let’s reduce to -1 or -2%)
  • Push for higher payout ratios to avoid unproductive cash reserves


  • Because of flooring at zero, benefits from negative interest rates are limited and the spread to be paid is minimum
  • Lower returns on pension funds (Defined Contribution schemes) and life insurance
  • Lower profitability for banks (especially savings/private banks listed on AIM) 
  • Cheap mortgages create artificial real estate bubbles - equities potentially overvalued, and this could also push poorer people into excess borrowing because it is cheap
  • The lower the interest rate, the more individuals are saving, which is counterproductive as it is not increasing household consumption (a paradox noted in Germany among other countries)
  • Excess liquidity penalised by destruction of principal – a disincentive for corporates to build up reserves of liquidity

The Swedes managed it!

Sveriges Riksbank, the Swedish central bank, some months ago decided to end a period of negative interest rates, and increased its rates by 0.25 percentage points, from -0.25% to an annual rate of 0%. The ten-year bond rate went from -0.40% to +0.08%, which means a long commitment just to recuperate your principal – very disappointing in terms of return. But the fundamental question is whether the other central banks, including the European Central Bank (ECB), will follow the Swedish example? Are there really any advantages to retaining negative interest rates?

A return to zero percent in the Eurozone would change everything. Banks are already suffering from this persistent negative climate and going lower would be even worse; it wouldn’t change anything but might even sink already damaged stakeholders (e.g. banks and insurance companies). It is still not clear what the advantages of the last five years of negative interest rates have been to the Swedish economy.

The Swedish gesture may seem surprising while their economy is still suffering. Their economy slowed down badly in 2019. So why did they make this move against the tide? Business confidence is low, industry remains weak, trade tensions look strong, the outlook is bleak, and inflation is limited to 2%, which seems quite reasonable. Savings of private individuals (via retail banking) have been impacted, the financial sector has seen its profitability plummet, at the risk of destabilising the whole sector. Mortgage loans are exploding (as they have become so cheap), creating possible financial and real estate bubbles and high household debt.

In my opinion, the negative elements caused by rates below 0% have largely supplanted the positive elements. Perhaps the solution really does lie in a return to a zero rate.


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