It
is conventionally argued that given limited domestic
resources, external financing helps to moderate the
domestic resources constraint by ugmenting the domestic
capital stock. It helps the economy to grow through
expansionary economic activities resulting from the
productive use of the existing and the borrowed resources.
External borrowing helps the private sector to undertake
its production ventures in the domestic economy and
abroad. It helps in importing new technologies (advanced
modes of production) for augmenting the capacity and
enhancing the productivity of industries. It also helps
the government to mobilize resources for financing its
socio-economic activities.
However,
there is an optimal level or sustainable limit to the
external debt financing, which has become a subject
of great debate and discussion among the economists
especially in the context of heavily indebted economies.
Economists gauge sustainability of external borrowing
from different indicators/measures such as external
debt to GDP ratio, debt to export ratio, short-term
debt to total debt, total debt to foreign exchange reserve
ratios and comparison between the contractual interest
rate on foreign loans and growth of exports etc.
It
may be noted that although debt is useful if it is channeled
for productive purpose, excessive reliance on external
sources of borrowing might become counterproductive
as it may have adverse impact on the domestic economy.
More external debt implies excessive demand on the foreign
currency. It leads to weakening of domestic currency
(or appreciation of foreign currency). Appreciation
of foreign currency aggravates the existing debt burden
in the future. This also leads to the current account
imbalance, as it requires more exports for clearing
the debt (Easterly and Schmidt-Hebbel, 1994). Further,
given a higher demand for foreign currency, if it leads
to a rise in the supply of domestic currency, it may
result in expansion of aggregate money supply. Expansion
of money supply reduces the interest rates. As a consequence,
it would lead to the outflow of capital from the domestic
economy.
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