Rr
Ramp
To push up the price of a share artificially.
Random walk
A forecasting theory based on the
premise that the past never
repeats itself. The hypothesis is that all technical analysis
and predictions of future price movements based on past be-
haviour are worthless. The random
walk theory was first devel-
oped in 1900 by Louis Bachelier, a French mathematician, and
was popularised in the 1960s. Its
most ardent supporters claim
that future movements in markets are no more predictable than
the random walk of a drunken man.
Rate of interest
The cost of money over time. The
difference between the cost
of interest paid by banks to their depositors and the rate of in-
terest that borrowers pay to banks for their loans is called
the banks’ turn. Rates of interest
are influenced by three main
factors.
1 The rate of inflation, which acts as a floor. Only in excep-
tional circumstances will a key
interest rate fall below a
country’s rate of inflation.
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