Q. Illustrate about foreign exchange earnings?
In theory foreign exchange earnings must not be hedged as the chances of an adverse movement are equivalent to those of a favourable one so that in the long-term exporters like Marton should break even. This is able to be inferred from the figures above - the chances of the dollar appreciating are equal to the chances of it depreciating against sterling (30%).
Indeed when allowance is prepared for the wider spread between the rates at which banks will buy and sell currency as between spot and forward transactions use of the forward market is more costly. Nevertheless failure to hedge can leave firms exposed to the risk of erratically large adverse currency movements perhaps large enough to bankrupt the smaller firm. Consequently although the risks in the long-term are roughly symmetrical many companies deem it prudent to hedge at least some part of their overseas earnings especially those relating to major contracts.