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Forex: Spare Capacity
Buy when the coloured
lines are at the low end of their range, sell when they are high
This tool looks at the
historical relationship and likely future development of a variable closely correlated
with exchange rate movements - namely differences in the pressure of demand between
economies, as expressed in the amount of spare capacity. The historic data is a set of
annual estimates calculated by PIT for all countries in the database. This ratio is
similar to IMF and OECD definitions for GDP Output Gaps. For comparability, exchange rates have been rebased to set
year-end 1994 at 100.
In each chart the foreign
currency index is shown as the
thick white line on the right
hand axis. The main explanatory variable, domestic less foreign spare capacity, uses the
left hand axis, shown as the
thin yellow line. A Best Guess
as to the future development of the variable is also shown on the left hand axis, as the thin orange line.
Best Guesses show what would
happen to the difference in the pressure of demand based on forecasts for spare capacity,
both at home and abroad. Depending on whether the investment perspective is Dollar-based
or relative to a global benchmark, the relevant foreign forecasts are those for the United
States or a GDP weighted global average. PIT forecasts of each GDP output gap are in turn
based on consensus estimates for GDP.
Owing to the conversion of
legacy currencies into Euros, analysis is provided on the common currency, rather than for
individual countries. Historical data is provided by creating synthetic GDP-weighted
time-series for the component currencies, expressed in the European Currency Unit.
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