Tag: exchange rates



The yen has been depreciating against the dollar and other currencies for several months. It fell from 100 yen = $0.97 in January 2021 to $0.61 by the end of July 2026 – a fall of 37%. This marked a 40-year low. But then, at the end of July it rallied and by 3 August the rate was 100 yen = $0.64 – a rise of nearly 5%. But why did this happen and what will be the implications for Japan and the wider world economy?

Why has the yen fallen so much since 2021?

There have been two main drivers.

The first is fiscal policy. For many years, Japan has been pursuing expansionary fiscal policy in an attempt to stimulate the sluggish economy. This has led to large budget deficits and public-sector debt. Since 2020, general government gross debt has been around 255% of GDP, the largest of any high-income economy.

Recently, the Japanese government has adopted aggressive supplementary budgets to fund, among other things, fuel subsidies and public-private investment initiatives. This has involved the issuance of more government bonds to fund the necessary borrowing.

Fiscal pressures have also increased becase of demography. A rapidly aging population and declining birth rates have required substantial public spending on healthcare, social security and pensions. Meanwhile, the tax-paying working-age population has declined as a proportion of total population.

On the plus side, unlike most highly indebted nations, over 90% of Japan’s debt is held domestically by Japanese residents, Japanese institutional investors, banks and the Bank of Japan (BoJ). This lowers the risk of default and hence the risk premium on Japanese bonds.

The second driver is monetary policy. Interest rates have been kept low over many years, including periods of negative rates, as the BoJ has attempted to stimulate the economy. Low interest rates have sometimes been backed up with quantitative easing to increase money supply.

Since March 2024, however, there have been four interest rate increases. The latest was in June 2026 when the BoJ raised the short-term policy rate from 0.75% to 1.0% – the highest level since 1995. Despite this, interest rates have remained below those in other countries, and this contributed to the continuing fall of the yen.

A falling yen has helped to increase Japanese exports by making them more competitive, but more expensive imports have contributed to rising Japanese inflation.

Low interest rates have also stimulated the yen-dollar carry trade. This is where investors borrow money in yen at low interest rates, convert it into US dollars and invest it in higher-yielding US assets, typically US government bonds (‘Treasury bonds’). This borrowing in yen to buy dollars further contributed to the depreciation of the yen against the dollar.

Co-ordinated intervention

In an attempt to raise the value of the yen, the Bank of Japan and the US Federal Reserve acted together – their first joint currency rescue operation since 2011. The BoJ spent tens of billions of dollars to buy yen; the US Treasury bought yen by selling euros. Prior to the intervention, global hedge funds held near-record short positions against the yen, meaning that they sold yen at a current price, agreeing to buy them back at a particular later date, hoping that the yen would fall in the meantime and that they would therefore make a profit. The sudden joint intervention forced these traders to buy back the yen to cut their losses before the rate rose further. This accelerated the yen’s appreciation.

But why did the USA join Japan in intervening? Japan is the largest foreign holder of US Treasuries ($1.1 trillion). The USA intervened to discourage Japanese investors from selling US Treasuries in order to raise cash, thereby pushing up US borrowing costs.

The rise in the yen was also encouraged by speculators who are expecting further interest rate rises from the BoJ to counter inflation and support public finances, driving domestic bond yields higher. This will lead to a narrowing of interest rates between Japan and other countries.

Effects on the Japanese economy

If the yen continues to appreciate, this will help to reduce inflation by making imports cheaper and will help to ease cost-of-living pressures on Japanese consumers. Japan is heavily reliant on imported energy and raw materials.

However, the decline in the yen over recent years has provided a large boost to Japanese exports. A sharp reversal in this could severely affect exporters’ profits and have a serious negative impact on economic growth.

If the appreciation continues, it would lead to an unwinding of the carry trade. To prevent mounting currency losses, highly leveraged institutional investors would be forced to sell assets, such as US and other countries’ shares and bonds to buy back yen and pay off their debts. This potentially massive unwinding would be likely to create global market volatility and drive up interest rates.

Articles

Data

Questions

  1. What have been the benefits and costs to Japan of a depreciating exchange rate?
  2. Explain the carry trade.
  3. Why might the yen-dollar carry trade unwind and what would be the consequences for Japan and the USA?
  4. Find out what has happened to the exchange rate between the yen and the euro. Has this been driven by the carry trade?
  5. For what reasons might the yen (a) now continue rising; (b) resume depreciating?
  6. Find out what has happened to the yen/dollar exchange rate since this blog was written. Explain your findings.

Senior Bank of England officials appeared before the House of Commons’ Treasury Select Committee on 21 February to report on the state of the economy and the future path for inflation and interest rates. One topic considered was the role of depreciation.

The pound has depreciated since the referendum on EU membership in June 2016. The exchange rate index today is some 9% below that before the referendum and 15% below the peak a year before the referendum.

It had fallen as much as 14% by October 2016 below the level before the referendum and 20% below its peak, pushed down partly by the cut in Bank Rate from 0.5% to 0.25% following the referendum. In November 2017, the Bank’s Monetary Policy Committee raised Bank Rate back to 0.5%. Two or three more rises of 25 basis points are expected over the next couple of years. This has helped to strengthen sterling somewhat. (Click here for a PowerPoint of the chart below.)

But has the depreciation been advantageous or disadvantageous to the economy? Here the Governor (Mark Carney) and the Chief Economist (Andy Haldane) appeared to differ. Andy Haldane said:

A combination of the weaker pound and a stronger global economy has worked its magic. That has meant that net trade has been a significant contributor, and we expect those effects to continue over the next two or three years. … Depreciations work, and that’s how they work.

By contrast, Mark Carney said:

Depreciations don’t work. They have an economic effect, but they’re not a good economic strategy. They may be an outcome of various things … but it’s how you make yourself poorer.

Are these statements contradictory or are they simply emphasising different effects of depreciation?

Both Andy Haldane and Mark Carney would accept that a depreciation makes imports more expensive and thus reduces real incomes (at least in the short run). They would also accept that a depreciation makes exports priced in pounds cheaper in foreign currency terms and thus can boost the demand for exports.

There is disagreement over two things, however. The first is the effect on people’s real incomes in the long run. Will any fall in real incomes from higher-priced imports in the short run be offset in the long run by higher economic growth?

This relates to a second area of disagreement. This is whether a depreciation can act as a significant driver for exports over the longer term. The increased incentive on the demand side (from consumers abroad to buy UK exports) could be offset by a disincentive for exporters to become more efficient and/or to compete in terms of quality. In other words, although it can give exporters a price advantage, the crucial question is the extent to which they take advantage of this, or merely take higher profits.

The disagreements thus relate primarily to the incentive effects over the longer term.

Articles

Bank of England governor says Brexit has made us poorer – as it happened The Guardian, Graeme Wearden (21/2/18)
Brexit will knock 5% off wage growth, says Mark Carney The Guardian, Phillip Inman (21/2/18)

Video

Treasury Committee: Wednesday 21 February 2018 Parliamentlive.tv (21/2/18) (see from 16:08:00)

Bank of England documents

Treasury Select Committee hearing on the February 2018 Inflation Report Bank of England (21/2/18)
Inflation Report – February 2018 Bank of England (8/2/18)

Data

Interest & exchange rates data Bank of England

Questions

  1. How does a depreciation affect the demand for and supply of imports and exports?
  2. What determines the size of the effect on inflation of a depreciation?
  3. What is the significance of the price elasticity of demand for and supply of sterling in determining the size of depreciation resulting from a change in confidence or a change in interest rates?
  4. How does productivity growth impact on the effectiveness of a depreciation in leading to higher economic growth?
  5. In what ways might a depreciation affect productivity growth?

On 8 February, the Bank of England issued a statement that was seen by many as a warning for earlier and speedier than previously anticipated increases in the UK base rate. Mark Carney, the governor of the Bank of England, referred in his statement to ‘recent forecasts’ which make it more likely that ‘monetary policy would need to be tightened somewhat earlier and by a somewhat greater extent over the forecast period than anticipated at the time of the November report’.

A similar picture emerges on the other side of the Atlantic. With labour markets continuing to deliver spectacularly high rates of employment (the highest in the last 17 years), there are also now signs that wages are on an upward trajectory. According to a recent report from the US Bureau of Labor Statistics, US wage growth has been stronger than expected, with average hourly earnings rising by 2.9 percent – the strongest growth since 2009.

These statements have coincided with a week of sharp corrections and turbulence in the world’s largest capital markets, as investors become increasingly conscious of the threat of rising inflation – and the possibility of tighter monetary policy.

The Dow Jones plunged from an all-time high of 26,186 points on 1 February to 23,860 a week later – losing more than 10 per cent of its value in just five trading sessions (suffering a 4.62 percentag fall on 5 February alone – the worst one-day point fall since 2011). European and Asian markets followed suit, with the FTSE-100, DAX and NIKKEI all suffering heavy losses in excess of 5 per cent over the same period.

But why should higher inflationary expectations fuel a sell-off in global capital markets? After all, what firm wouldn’t like to sell its commodities at a higher price? Well, that’s not entirely true. Investors know that further increases in inflation are likely to be met by central banks hiking interest rates. This is because central banks are unlikely to be willing or able to allow inflation rates to rise much above their target levels.

The Bank of England, for instance, sets itself an inflation target of 2%. The actual ongoing rate of inflation reported in the latest quarterly Inflation Report is 3% (50 per cent higher than the target rate).

Any increase in interest rates is likely to have a direct impact on both the demand and the supply side of the economy.

Consumers (the demand side) would see their cost of borrowing increase. This could put pressure on households that have accumulated large amounts of debt since the beginning of the recession and could result in lower consumer spending.

Firms (the supply side) are just as likely to suffer higher borrowing costs, but also higher operational costs due to rising wages – both of which could put pressure on profit margins.

It now seems more likely that we are coming towards the end of the post-2008 era – a period that saw the cost of money being driven down to unprecedentedly low rates as the world’s largest economies dealt with the aftermath of the Great Recession.

For some, this is not all bad news – as it takes us a step closer towards a more historically ‘normal’ equilibrium. It remains to be seen how smooth such a transition will be and to what extent the high-leveraged world economy will manage to keep its current pace, despite the increasingly hawkish stance in monetary policy by the world’s biggest central banks.

Video

Dow plunges 1,175 – worst point decline in history CNN Money, Matt Egan (5/2/18)

Articles

Global Markets Shed $5.2 Trillion During the Dow’s Stock Market Correction Fortune, Lucinda Shen (9/2/18)
Bank of England warns of larger rises in interest rates Financial Times, Chris Giles and Gemma Tetlow (8/2/18)
Stocks are now in a correction — here’s what that means Business Insider, Andy Kiersz (8/2/18)
US economy adds 200,000 jobs in January and wages rise at fastest pace since recession Business Insider, Akin Oyedele (2/2/18)

Questions

  1. Using supply and demand diagrams, explain the likely effect of an increase in interest rates to equilibrium prices and output. Is it good news for investors and how do you expect them to react to such hikes? What other factors are likely to influence the direction of the effect?
  2. Do you believe that the current ultra-low interest rates could stay with us for much longer? Explain your reasoning.
  3. What is likely to happen to the exchange rate of the pound against the US dollar, if the Bank of England increases interest rates first?
  4. Why do stock markets often ‘overshoot’ in responding to expected changes in interest rates or other economic variables

On the 15th June, the Bank of England’s Monetary Policy Committee decided to keep Bank Rate on hold at its record low of 0.25%. This was not a surprise – it was what commentators had expected. What was surprising, however, was the split in the MPC. Three of its current eight members voted to raise the rate.

At first sight, raising the rate might seem the obvious thing to do. CPI inflation is currently 2.9% – up from 2.7% in April and well above the target of 2% – and is forecast to go higher later this year. According to the Bank of England’s own forecasts, even at the 24-month horizon inflation is still likely to be a little above the 2% target.

Those who voted for an increase of 0.25 percentage points to 0.5% saw it as modest, signalling only a very gradual return to more ‘normal’ interest rates. However, the five who voted to keep the rate at 0.25% felt that it could dampen demand too much.

The key argument is that inflation is not of the demand-pull variety. Aggregate demand is subdued. Real wages are falling and hence consumer demand is likely to fall too. Thus many firms are cautious about investing, especially given the considerable uncertainties surrounding the nature of Brexit. The prime cause of the rise in inflation is the fall in sterling since the Brexit vote and the effect of higher import costs feeding through into retail prices. In other words, the inflation is of the cost-push variety. In such cirsumstances dampening demand further by raising interest rates would be seen by most economists as the wrong response. As the minutes of the MPC meeting state:

Attempting to offset fully the effect of weaker sterling on inflation would be achievable only at the cost of higher unemployment and, in all likelihood, even weaker income growth. For this reason, the MPC’s remit specifies that, in such exceptional circumstances, the Committee must balance any trade-off between the speed at which it intends to return inflation sustainably to the target and the support that monetary policy provides to jobs and activity.

The MPC recognises that the outlook is uncertain. It states that it stands ready to respond to circumstances as they change. If demand proves to be more resilient that it currently expects, it will raise Bank Rate. If not, it is likely to keep it on hold to continue providing a modest stimulus to the economy. However, it is unlikely to engage in further quantitative easing unless the economic outlook deteriorates markedly.

Articles

The Bank of England is moving closer to killing the most boring chart in UK finance right now Business Insider, Will Martin (16/6/17)
UK inflation hits four-year high of 2.9% Financial Times, Gavin Jackson and Chloe Cornish (13/6/17)
Surprise for markets as trio of Bank of England gurus call for interest rates to rise The Telegraph, Szu Ping Chan Tim Wallace (15/6/17)
Bank of England rate setters show worries over rising inflation Financial TImes, Chris Giles (15/6/17)
Three Bank of England policymakers in shock vote for interest rate rise Independent, Ben Chu (15/6/17)
Bank of England edges closer to increasing UK interest rates The Guardian, Katie Allen (15/6/17)
Bank of England doves right to thwart hawks seeking interest rate rise The Guardian, Larry Elliott (15/6/17)
Haldane expects to vote for rate rise this year BBC News (21/6/17)

Bank of England documents
Monetary policy summary Bank of England (15/6/17)
Monetary Policy Summary and minutes of the Monetary Policy Committee meeting ending on 14 June 2017 Bank of England (15/6/17)
Inflation Report, May 2017 Bank of England (11/5/16)

Questions

  1. What is the mechanism whereby a change in Bank Rate affects other interest artes?
  2. Use an aggregate demand and supply diagram to illustrate the difference between demand-pull and cost-push inflation.
  3. If the exchange rate remains at around 10–15% below the level before the Brexit vote, will inflation continue to remain above the Bank of England’s target, or will it reach a peak relatively soon and then fall back? Explain.
  4. For what reason might aggregate demand prove more buoyant that the MPC predicts?
  5. Would a rise in Bank Rate from 0.25% to 0.5% have a significant effect on aggregate demand? What role could expectations play in determining the nature and size of the effect?
  6. Why are real wage rates falling at a time when unemployment is historically very low?
  7. What determines the amount that higher prices paid by importers of products are passed on to consumers?