Figure 2.4: Time series, over the period 1983:1-1987:12, of CSCE (top left) and LIFFE (middle left) cocoa futures prices on the same scale [800, 2200], the Pound-Dollar exchange rate on scale [0.8, 2.2] (bottom left) and corresponding returns series (right) all on the same scale [-0.08, 0.06].
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