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Introduction
to Economics ECO401
VU
Lesson
11.4
THE
FOUR BIG MACROECONOMIC
ISSUES AND THEIR
INTER-RELATIONSHIPS
(CONTINUED.......)
BALANCE
OF PAYMENTS
The
balance of payments (BOPs) is an
accounting record of a country's
transactions with the
rest
of the world. To illustrate
the related concepts in a
non-complicated way, we shall
assume
a
two-country world (Pakistan
and the US), and
view things from the
Pakistani side.
Before
we can fully grasp the
BOPs, it is important to develop an
understanding of the
market
for
foreign exchange. Foreign
exchange, in the Pakistani
context, simply means US
dollars
(note
that foreign exchange from
the US's point of view
would be Pak rupees).
The
Market for Foreign
Exchange:
The
market for foreign exchange
(or dollars) in Pakistan
works like the market
for any other
commodity
(like apples, oranges etc.).
We have an upward sloping
supply curve and a
downward
sloping demand curve. We
operate in the same
price-quantity framework,
noting,
however,
that quantity in this
context means the quantity
of dollars and price in this
case
means
price per dollar, i.e.
the rupee price of a dollar.
However, the latter is
simply the
Rupee/US$
exchange rate, and hence we
can label the vertical
axis accordingly.
The
Forces of Demand and Supply
in Foreign Exchange
Market:
Now,
consider what the forces of
demand and supply are in
this market. First consider
what
could
cause the supply curve
for dollars to shift to the
right, i.e. what would
cause the supply of
dollars
in the market to increase
given a certain exchange
rate. Well, any transaction
which
has
the effect of bringing
dollars into the country
would have this effect.
Examples of such
transactions
are net inflows of US
investment into Pakistan,
Pakistani exports to the
US,
remittances
from Pakistanis working in
the US. Now what
are examples of transactions
that
cause
the demand for dollars to
increase? Pakistani imports of US
goods, Pakistani
travelers
traveling
to the US, Pakistani
students paying for study in
US universities, profits repatriated
to
US
by US firms operating in Pakistan.
All these will cause
the demand for dollars in
the
market
to increase.
Any
transaction which causes the
supply curve of dollars to
shift to the right is
recorded with a
positive
sign on the BOPs (as it
corresponds to an inflow of dollars),
while any transaction
which
causes the demand curve to
shift to the right is
recorded with a negative
sign on the
BOPs.
Equilibrium
in the Market of Foreign
Exchange:
Equilibrium
in the market for foreign
exchange occurs at the point
of intersection of the
supply
and
demand curves. In BOP
terminology, this is when
all the +vs and
the ves balance;
i.e.
the
BOPs is zero (external
balance).
Given
an initial equilibrium, it is useful to
study note how market
equilibrium responds to a
shift
in,
say, the supply curve. A
distinction has to be made
between the cases when
the exchange
rate
is fixed by the government
and when it is left to float
freely.
When
the exchange rate is fixed,
the government has to make
up for any excess or
shortfall in
the
market. Thus, if the
supply
curve shifts to the right
(say
due to a rise in exports),
and
there
is an excess supply of dollars,
the government must step in
and purchase those
excess
dollars
from the foreign exchange
market, pumping the
equivalent local currency in
the
process.
This purchase is an example of
foreign exchange market
intervention by government
(often
implemented by the central
bank on behalf of the
government).
Similarly,
if there is a rightward
shift in the demand curve
(due
to, say, a rise in
imports),
and
there is a situation of excess
demand for dollars at the
given exchange rate,
the
government
must step in and supply
those dollars from its
coffers in exchange for
local
currency.
The government's foreign
exchange reserves fall and
the local currency
(rupee)
supply
contracts as a result of this
kind of intervention.
116
Introduction
to Economics ECO401
VU
To
let the exchange rate
float freely is to allow the
price mechanism to bring
about automatic
equilibrium
in the foreign exchange
market. Thus in this case,
if there is an excess supply
of
dollars,
the price of the dollar
falls (i.e. less rupees
are required to purchase one
dollar). In
other
words, the rupee appreciates
vis-à-vis the dollar.
Conversely if there is an
excess
demand
for dollars in the market,
then this pushes the
exchange rate up (i.e. more
rupees will
now
be needed to buy one
dollar). In other words, the
rupee depreciates. Note that
an
increase
(decrease) in the price of
the dollar is equivalent to
a(n) depreciation (appreciation)
of
the
rupee, not vice
versa.
Parts
of BOP:
The
BOPs can be divided into
three parts:
i.
Current account,
ii.
Capital account and
iii.
Changes to reserves.
The
Current account:
The
current account balance is
essentially the trade
balance (exports minus
imports), but with
net
factor receipts from abroad
added.
If
the exchange rate is fixed,
then changes in reserves
must mirror the combined
balance on
the
current and capital accounts
in order to bring the
overall BOPs to zero. If the
exchange
rate
is floating, then changes to
reserves can remain zero, as
the adjustment burden is
borne
by
the exchange rate which
appreciates (depreciates) in response to
a joint surplus (deficit)
on
the
current and capital
accounts.
External
Transactions:
External
transactions which have no
long-term (or future) flow
implications for the
current
account
are recorded on the current
account. Thus exports,
imports, and factor
payments
(foreign
workers' outward remittances,
interest on foreign debt,
and dividends on profits
of
foreign
firms) and factor receipts
(overseas Pakistanis' inwards
worker remittances,
interest
earned
on foreign assets held,
dividends earned by Pakistani
firms abroad) are all
recorded on
the
current account.
Compare
these transactions with the
taking on of a new long-term
foreign debt recorded
with
a
plus sign under the
capital account. Here, the
initial inflow of dollars
does not make
the
transaction
complete in an inter-temporal sense.
The money that has
come in will have to
be
repaid,
both principal and interest
over the future. Similarly,
foreign investment coming
into the
country.
The initial dollars coming
in will imply a future
stream of current account
outflows in
terms
of dividend remittance
abroad.
In
the long-term, the current
account and capital account
should usually mirror
each
other.
So
if the current account is in
deficit, you would expect
the country to be borrowing
or
attracting
foreign investment on the
capital account to bring the
overall BOPs to zero.
Similarly,
if the current account is in
surplus, you would expect
the country to be lending to
the
rest
of the world or investing
outside the country.
The
capital Account:
The
capital account generally
provides a direct picture of
the net asset position of a
country
vis-à-vis
the rest of the world. If
the capital account stays in
surplus year after year,
this
indicates
the country's increasing
indebtedness to the rest of
the world. If however, the
capital
account
stays in deficit year after
year, this means the
country's indebtedness to the
rest of the
world
is falling.
At
the introductory level, BOP
problems normally refer to a
deficit on the
current
account,
since the capital account is
assumed to be passive. Thus
external disequilibrium is
usually
associated with a situation
where the trade balance
(exports imports) is in
deficit.
This
raises two
questions:
117
Introduction
to Economics ECO401
VU
a.
Is a
current account deficit
necessarily bad? The
answer is no. Recalling
the
condition
for macroeconomic equilibrium
S+T+M = I+G+X, and
rearranging, we can
get
{M-X}
= [I-S] + (G-T). The {} term
is the current account or
trade balance, the []
term
gives
the private sector resource
deficit (i.e. the excess of
the private sector's
investment
over savings) and the ()
term is the government
fiscal deficit. It is clear
that
if
M>X because G>T (i.e.
government is spending in excess of
its resources), then
the
current
account deficit might be
unsustainable (i.e. bad),
especially if the
government's
spending
is essentially of a current nature.
However, a trade deficit
which finances
private
investment that would
otherwise not have been
possible, is likely to be
desirable,
esp. if the private sector
is investing in industries that
will have future
export
potential
(because this means the
country will have the
foreign exchange reserves
in
the
future to pay off the
debt that is being incurred
today to finance the current
account
deficit).
b.
How
can a current account, which
is in deficit, be restored to balance?
Firstly
it
must
be recognized that perennial
current account deficits of
the sort implied in
the
question
only obtain under fixed
exchange rates (because
under floating
exchange
rates,
the disequilibrium would
self-correct through exchange
rate depreciation).
One
quick
fix solution to sort out
current account deficits
under fixed exchange rate
regimes
is
to have an economic deflation.
The theory here is as
follows: when a
country's
national
income rises, it spends
more; part of that spending
falls on imported
goods;
higher
imports cause the current
account to worsen. The
reverse is also true:
lower
income
must reduce import spending
and therefore improve the
current account
spending.
However, economic contraction is a
rather painful way of
restoring current
account
equilibrium. A less painful
one suggested by economists is
devaluation, the
name
given to exchange rate
depreciation but in the
context of fixed exchange
rates.
(The
corresponding term for
exchange rate appreciation is
revaluation.) A devaluation
attempts
to bring the exchange rate
in line with its long-run
equilibrium level, i.e. a
level
consistent
with international competitiveness.
Competitiveness is simply defined as
the
real
exchange rate (RER), where
RER = (Pf/Pd)*NER;
NER is the nominal
exchange
rate
(in Rs/$), Pf is
the price level prevailing
in the foreign country (US),
and Pd
is
the
price
level prevailing in the home
country (Pakistan). The
formula simply says
that,
given
a fixed NER, if inflation is
higher in Pakistan (relative to
the US), Pakistani
exports
will become less attractive
(or competitive) in the
international market. As a
result,
our exports will fall,
and current account will go
into deficit. To rectify
the
situation,
the NER can be devalued so
as to make our goods cheaper
and bring
competitiveness
back to its original higher
level. However, there are
many provisos
attached
to the devaluation policy
prescription. Devaluation only
works if the
country's
exports
and imports are elastic,
otherwise the price effect
of the devaluation
will
dominate
the volume effect and
the current account will
worsen. Secondly, the
country
must
have excess productive
capacity in order to meet
the higher demand for
exports
that
is created as a result of the
devaluation. Thirdly, the
country should not have
a
very
high foreign debt whose
burden increases so much as a
result of the
devaluation
that
the negative effects
associated therewith overwhelm
any positive
competitiveness
effects.
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