what are the major sources of uncertaintly that can affect t

Solution

The major sources of uncertainty are fluctuations in demand and price. These may vary for a number of reasons; Porter’s five forces model suggests that the presence or absence of substitute goods and services, the threat of existing competitors, of new competitors and the bargaining power of customers will affect a company’s existing product. Prices may fluctuate according to supply and demand, changes in tariffs and exchange rates, and inflation.