In: Economics
The basic relation in open economy macroeconomics is NX = NCO. What is the relation of this equation with the savings and if investments is to exceed savings, what is to be done?
The equality is derived as for
, we have
or
or
, for S be the national savings. Also, we have
since
as every transaction that affects NX, also equally affects the
NCO, which can be interpreted as NCO (money/finance market)
finances the NX (goods and service market).
Hence, the NX and NCO is equal to difference between saving and
investment. If investment exceeds savings, we have
, ie the equation
would be balanced by negative NX meaning that imports would exceed
the export, which in turn would be financed by negative NCO meaning
that there would be in-flow of capital, ie the value of foreign
people acquiring domestic assets (in this case the financial
transaction for the imports) exceeds the value of domestic people
acquiring foreing assets (financial transaction for the
exports).
Hence, a negative saving investment difference would be balanced by neagative net exports which would be financed by negative net capital outflow.