A stable currency is a currency which is succesful in performing
the three major roles which a currency is expected to perform
namely store of value, unit of account and mean of exchange.
The most prudent and the most common measure of weighing a
currency's stability is Consumer price index, that is weighing the
price a basket of goods considered essential for an average
household.
Adverse movements in either direction of the price of the basket
is detrimental to the health of the nation as a whole for the
following reasons
- Rise in the price of goods reduces the purchasing power of the
people who in return higher wages and salaries to maintain the
current standard of living.
- The real value of the savings and investments are reduced as
one may not be able to purchase the same level of goods, hampering
the balance maintaned.
- People who have borrowed at a fixed level of interest rates
gain as with the increase in inflation, the income also increases
which leads to a reduction in the burden of the loan repayment in
respect to their earnings.
- It destabilizes the borrowing lending balance as the lenders
demand an increased risk premium to compensate for the prospects of
future inflation which makes the borrowing costlier and disrupts
the situation.
- businesses are left confused in forecasting the future trends
of the cost of raw materials and other costs, making it difficult
to make right decisions.
- Encouraging Foreign Direct Investments into the cuountry
presupposes and prenecessitates existance of a stable
currency.
Hence the importance of a stable currency cannot be neglected
and is seen as a major factor in the development and growth of a
nation.