1.
Sell foreign exchange assets and buy their own currency
China
has over $1.4 trillion of US government bonds. If the Chinese sold these
Treasury bills and brought back the proceeds to China, this would cause a
depreciation in the dollar, and the Chinese Yuan would appreciate. (supply of
dollars would rise, and demand for Chinese Yuan would increase) Because China
has substantial dollar assets, they could cause a reasonably significant fall
in the value of the dollar.
In
fact, China could appreciate the value of their currency simply by not buying
any more dollar assets. Currently, China has a large current account surplus
with the US. This flow of money into China would usually cause an appreciation.
However, China has deliberately decided to use its foreign currency earnings to
buy US assets. They do this to keep the Yuan weaker and therefore keep their
exports more competitive.
In
the case of Russia and Brazil, they only have relatively limited dollar
reserves. Therefore, there is only limited scope for selling dollars and buying
their own currency.
2.
Higher interest rates
Higher
interest rates would attract some ‘hot money flows‘.
Hot money flows occur when banks and financial institutions move money to other
countries to take advantage of a better rate of return on saving. Given
interest rates are close to zero in the US, higher interest rates in developing
countries give a significant incentive to move money and savings there.
·
However, as a
drawback, higher interest rates may reduce the rate of economic growth (see the effect of
higher interest rates). In many circumstances, e.g. in
recession, higher interest rates would not be suitable due to side effect on
economic growth. Though if the economy was booming, higher interest rates would
cause an appreciation and moderate the rate of economic growth.
3.
Expectations
At
the moment, it is hard to find a country which wants to have a stronger
exchange rate. For example, Switzerland was once seen as a ‘safe haven’
currency. This caused investors to buy Swiss Francs. However, the Swiss
government and Central Bank were worried about the appreciation in the Swiss
Franc causing problems for exporters. If a country gave a credible assurance
that they were targeting a higher exchange rate, this might encourage
speculators to move money into that country.
4.
Reduce inflation
If
inflation is relatively lower than competitors, then the countries goods will
become more attractive and demand will rise. Lower inflation tends to increase
the value of the currency in the long term. Toreduce inflation,
the government / Central bank can pursue tighter fiscal and monetary policy and
also supply-side policies.
4.
Long-term supply-side policies
In
the long term, a strong currency depends on economic fundamentals. To have a
stronger exchange rate, countries will need a combination of low inflation,
productivity growth, economic and political stability.
For
example, if India increased interest rates, this might not be enough to cause
an appreciation in the exchange rate. This is because, despite high-interest
rates, investors would be concerned about the high inflation in the Indian
economy.
To
increase the value of the currency in the long-term, the government will need
to try supply-side policies to increase competitiveness and cut costs of
production, for example, privatisation and cutting regulations may help the
export industry become more competitive in the long-term.
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