Tag: appreciation

In light of the recent sharp decline in the British pound, this blog is an updated version of Appreciating a depreciating pound which was published in early December 2012. The significance of the depreciation should be seen in the context of the UK as an island-economy which makes trade an important determinant of our economic performance.

The competitiveness of our exports is, in part, affected by the exchange rate. Floating exchange rates are notoriously volatile. However, since the autumn of 2007 we have observed a significant depreciation of the UK exchange rate – a depreciation that seems to have found new momentum of late. A depreciation helps to make our exports more competitive abroad which might help to compensate for weak demand here in the UK.

Rather than look at the British pound (or any currency) against the many foreign currencies separately we can look at the average exchange rate against a whole bundle of currencies. The average rate is calculated by weighting the individual exchange rates by the amount of trade between Britain and the other countries. This trade-weighted exchange rate is known as the effective exchange rate.

The chart shows the nominal (actual) effective exchange rate for the British pound since 2002. The chart shows clearly how from the autumn of 2007 the effective exchange rate began to fall sharply. Over the period from September 2007 to January 2009, figures from the Bank of England show that the nominal effective exchange rate fell by 25.3 per cent. In simple terms, the British pound depreciated by close to one-quarter. (Click here for a PowerPoint of the chart.)

If we move the clock forward, we observe an appreciation of the British pound between July 2011 (when its value was only 1.6 per cent higher than in January 2009) and September 2012. Over this period, the British pound appreciated by 7.2 per cent. Its value remained relatively stable through much of the remainder of last year. However, we appear to be on another downward path. If we compare the average value in February 2013 with the ‘high’ back in September 2012 we observe a depreciation of 5.4 per cent.

The British pound continues on its roller-coaster ride. Most commentators expect the British pound to fall further. Some see this as an important ingredient for a revival in British economic fortunes. If we compare September 2007 with February 2013, we find that the nominal effective exchange rate for the British pound is 23 per cent lower. This constitutes a major competitive boost for our exporters. However, an important question is whether there is a demand for these goods and services abroad however more attractive the depreciation makes them.

Data

Statistical Interactive Database – interest and exchange rate rates data Bank of England
BIS effective exchange rate indices Bank for International Settlements

Articles

Pound depreciates Vs dollar to lowest level since Aug 16 Bloomberg, Emma Charlton (5/2/13)
Pound advances against euro on Italy speculation; Gilts decline Bloomberg, Lucy Meakin and David Goodman (4/3/13)
Pounding of sterling risks a currency war Scotland on Sunday, Bill Jamieson (17/2/13)
Credit ratings, the pound, currency movements and you BBC News, Kevin Peachey (25/2/13)
The Bank of England can’t just go on doing down the pound Telegraph, Jeremy Warner (21/2/13)
Sterling will continue to go down BBC News, Jim Rogers (25/2/13)

Questions

  1. Explain how the foreign demand for goods and assets generates a demand for British pounds. How will this demand be affected by the foreign currency price of the British pound, i.e. the number of foreign currency units per £1?
  2. Explain how the demand by British residents for foreign goods and assets generates a supply of British pounds. How will this supply be affected by the foreign currency price of the British pound, i.e. the number of foreign currency units per £1?
  3. What factors are likely to shift the demand and supply curves for British pounds on the foreign exchange markets?
  4. Illustrate the effect of a decrease in the demand for British goods and assets on the exchange rate (i.e. the foreign currency price of the British pound) using a demand-supply diagram.
  5. What is the difference between a nominal and a real effective exchange rate? Which of these is a better indicator of the competitiveness of our country’s exports
  6. What factors are likely to have caused the depreciation of the British pound in 2013?

The UK is an island-economy. Therefore, trade is a crucial determinant of our economic performance. The competitiveness of our exports, in part, is affected by the exchange rate. Floating exchange rates are notoriously volatile. However, since the autumn of 2007 we have observed a significant depreciation of the UK exchange rate. In other words the number of units of many foreign currencies to the British pound has fallen. A depreciation helps to make our exports more competitive abroad. We detail the extent of this depreciation and any signs of a reversal in this pattern.

Rather than look at the British pound (or any currency) against the many foreign currencies separately we can look at the average exchange rate against a whole bundle of currencies. The average rate is calculated by weighting the individual exchange rates by the amount of trade between Britain and the other countries. This trade-weighted exchange rate is known as the effective exchange rate.

In analysing the competitiveness of the exchange rate, we can go one step further and adjust for the terms of trade. This means that we adjust for the average price of our exports relative to the average price of those goods we import. Therefore, as well as the nominal (actual) effective exchange rate we can calculate a real effective exchange rate. If the average price of our exports rises relative to the average price of imports, the real effective exchange rate rises relative to the nominal rate. It means that we are able to obtain a larger volume of imports from selling a given volume of exports.

The chart shows the nominal (actual) and real effective exchange rate for the British pound since 2002. The chart shows clearly how from the autumn of 2007 the effective exchange rate both in nominal and real terms began to fall sharply. Over the period from September 2007 to January 2009 the nominal effective exchange rate fell by 26 per cent. After adjusting for the relative price of exports to imports, we find the real effective exchange rate fell by 24 per cent. In other words, the British pound depreciated by close to one-quarter in just 16 months.

If we move the clock forward, we observe a mild appreciation of the British pound since July 2011. In nominal terms, the effective exchange rate has appreciated by 6.8 per cent while in real terms it has appreciated by 7.8 per cent. Nonetheless, if we compare September 2007 with October 2012, we find that the nominal effective exchange rate for the British pound is 19 per cent lower while the real effective exchange rate is approximately 13 per cent lower. This still constitutes a major competitive boost for our exporters.

Data
BIS effective exchange rate indices Bank for International Settlements

Articles

Sterling gains as eurozone weakness prevails Reuters UK, Phillip Baillie (7/12/12)
Pound steady after Autumn Statement Financial Times, Alice Ross (5/12/12)
Sterling at risk after triple-A warning, outlook negative Reuters UK, Phillip Baillie (6/12/12)

Questions

  1. Explain how the foreign demand for goods and assets generates a demand for British pounds. How will this demand be affected by the foreign currency price of the British pound, i.e. the number of foreign currency units per £1?
  2. Explain how the demand by British residents for foreign goods and assets generates a supply of British pounds. How will this supply be affected by the foreign currency price of the British pound, i.e. the number of foreign currency units per £1?
  3. What factors are likely to shift the demand and supply curves for British pounds on the foreign exchange markets?
  4. Illustrate the effect of a decrease in the demand for British goods and assets on the exchange rate (i.e. the foreign currency price of the British pound) using a demand-supply diagram.
  5. What is the difference between a nominal and a real effective exchange rate? Which of these is a better indicator of the competitiveness of our country’s exports?

For the past three years the Japanese yen has been appreciating against the US dollar and many other currencies. From the end of June 2007 to 14 September 2010, the yen appreciated from ¥100 = $0.81 to ¥100 = $1.20 (a 48% appreciation). Over the same period the yen exchange rate index rose from 113.3 to 172.4 (a 52% appreciation). The rising yen has been impeding Japan’s recovery as it has made its exports more expensive, while, at the same time, making imports cheaper and thus making it harder for domestic firms to compete.

Until 14 September 2010, the yen was freely floating. But on 15 September, the Japanese central bank decided to intervene by selling yen and buying dollars and other currencies.

But why had the yen risen so strongly? There are four main reasons.

The first is the persistent Japanese trade surpluses, partly stimulated by falling costs of production in Japan.

The second is the unwinding of the carry trade. Before the banking crisis of 2007/8, many banks and other financial institutions borrowed yen, given the low interest rates in Japan, and used the yen to purchase dollars and pounds, given the much higher interest rates in the USA and the UK. The effect of this ‘carry trade’, as it was known, was to drive up the exchange rates of the dollar and sterling and drive down the value of the yen. This encouraged further speculation as people sold yen in anticipation of further depreciation and purchased dollars and sterling in anticipation of further appreciation. With the banking crisis, however, short-term financial flows decreased and the current account became more important in determining exchange rates. The carry trade began to unwind and people began selling dollars and sterling and buying yen. What is more, towards the end of 2008, interest rates were reduced substantially in the USA and the UK in order to stimulate aggregate demand. The interest rate differential between Japan and the USA and UK virtually disappeared. This further encouraged the purchase of yen and the sale of dollars and sterling as carry trade investors began paying back their loans to Japan.The third reason for the appreciation of the yen is the actions of the Chinese who have used their surpluses to buy other currencies: originally mainly dollars, but increasingly yen.

The fourth reason is speculation. As the yen has risen, so increasingly people have bought yen in anticipation of further appreciation. But, of course, this speculation has brought about the very effect the speculators anticipated. Such speculation can be very powerful, given that some $4 trillion goes across the foreign exchange markets every day (see The inexorable growth of FOREX).

So will the intervention by the Bank of Japan be successful in causing the yen to depreciate? Or will the forces that drove up the yen prove impossible to resist? The following articles consider this question and also look at the factors that caused the yen to appreciate and its effects on the Japanese economy.

Articles
Japan’s $21b move to weaken yen may be futile Sydney Morning Herald (16/9/10)
Japan acts to weaken surging yen Guardian, Larry Elliott and Graeme Wearden (15/9/10)
Q+A: How is Japan judging success in yen intervention? Reuters, Hideyuki Sano and Charlotte Cooper (17/9/10)
Tokyo action puts brake on yen Financial Times, Peter Garnham (17/9/10)
It’s hard to keep a strong yen down CTV, Canada, Brian Milner (16/9/10)
Firm stance on yen stressed / Govt, BOJ strike decisive pose, but drastic action still required Daily Yomiuri, Japan, Tadashi Isozumi and Yomiuri Shimbun (16/9/10)
Bernanke Shadow of Easing Limits BOJ Success With Yen Weakness Bloomberg, Ron Harui and Joshua Zumbrun (17/9/10)
The Bank Of Japan Is Spitting In The Wind Wall Street Journal blogs: The Source, Nicholas Hastings (16/9/10)
Japan intervenes in markets to combat rising yen BBC News, Mariko Oi (15/9/10)
Q&A: What’s moving the Japanese yen? BBC News (15/9/10)
Currency intervention’s mixed record of success BBC News, Russell Hotten (16/9/10)
Yen intervention: Because I Kan The Economist (16/9/10)
Beggar, then sneakily enrich, thy neighbour The Economist (15/9/10)
The yen and gold The Economist, Buttonwood (15/9/10)

Data
Dollar/yen exchange rate X-rates.com
Statistical Interactive Database – interest and exchange rates data Bank of England
Currencies BBC News
Currency converter Yahoo Finance

Questions

  1. Why has the Japanese yen appreciated so much over the past three years?
  2. What will be the effect of the Bank of Japan’s exchange market intervention on Japanese money supply? What will determine the size of this effect?
  3. Why might the Bank of Japan’s actions have been influenced by the anticipation of further quantitative easing by the US Federal Reserve Bank?
  4. What factors determine the likely success of foreign exchange market intervention by central banks?
  5. What will determine how speculators will react to the Bank of Japan’s actions?
  6. Discuss the following quote from the second The Economist article above: “A bit of inflation in Japan wouldn’t just be a good thing. It would be a really, really great thing. And if other countries react to Japan’s intervention by attempting to print and sell their own currencies in order to toss the deflationary potato to someone else, well then so much the better.”
  7. If all countries seek to achieve export-led growth, is this a zero-sum game?
  8. Why has the price of gold been rising?