
Paper P1: Governance, risk and ethics
254 © Emile Woolf Publishing Limited
Example
Investors in shares often diversify their investment risks by investing in a portfolio
of shares of different companies in different industries and different countries.
Some investments will perform well and some will perform badly. The losses on
poor-performing shares should be offset by higher-than-expected returns on others.
Risk is also reduced because if an investor suffers a loss on some shares, the rest of
the investment portfolio retains its value. The maximum loss in any single
investment is limited to the amount that has been invested in the shares of that
company.
When is diversification appropriate?
Diversification is appropriate in some situations, but not in others.
A diversification strategy by a company might be appropriate provided that its
management have the skills and experience to manage the portfolio of different
business activities. For example, a film studio diversifies into films for the
cinema, films for television and other home entertainment products. If there is a
decline in the market for cinema films, the market for television programmes or
downloading films from the internet might remain strong.
A diversification strategy by a company is much more risky (and less
appropriate) when it takes the company into unrelated business activities. For
example, a company that diversifies into making tobacco products, selling
insurance products and providing consultancy services could be exposed to very
large risks, because its senior management might not have the skills or
experience to manage all the different businesses. Each business is very different
from the others. Investors in the company might also disapprove of such
diversification: if investors want to diversify into different businesses, they can
do so by buying shares in specialist companies rather than buying shares in a
company that diversifies its activities.
Risks are not reduced significantly by diversifying into different activities where
the risks are similar, so that if there is an adverse change in one business activity,
there is a strong probability that adverse changes will also occur in the other
activities. For example, a company that diversifies into house-building,
manufacturing windows and manufacturing bricks would be exposed in all
three businesses to conditions in the housing market.
3.3 Risk transfer
Risk transfer involves passing some or all of a risk on to someone else, so that the
other person has the exposure to the risk.
A common example of risk transfer is insurance. By purchasing insurance, risks are
transferred to the insurance company, which will pay for any losses covered by the
insurance policy.
Using insurance to manage risk is appropriate for risks where the potential losses
are high, but the probability of a loss occurring is fairly low.