R&D is a source of competitive advantage. Firms that innovate can offer products rivals cannot easily match, letting them differentiate, charge premium prices and build brand loyalty. Process R&D lowers unit costs, supporting a cost-leadership position. In fast-moving markets (technology, pharmaceuticals, cars), businesses that stop innovating fall behind and may not survive — so R&D is tied to long-term survival, not just short-term profit.
R&D is an investment, not a running cost of the current period. Money is spent now — often heavily — while any return arrives years later and is highly uncertain (many R&D projects fail or never reach the market). This is exactly the profile of a capital investment, so R&D can and should be appraised using the techniques of 3.8 investment appraisal (payback, ARR, NPV): the firm forecasts the future net cash flows a successful product will generate, discounts them and weighs them against the up-front R&D cost.
Key features that make R&D distinctive as an investment:
- High cost — R&D is expensive and much of it is sunk (unrecoverable) if the project fails.
- Long time horizon — returns can take years, straining cash flow (link to 3.7).
- High uncertainty/risk — success is not guaranteed; the payoff is a probability, not a certainty.
- Intangible and cumulative — even 'failed' R&D can build knowledge that helps future projects.
How much to spend is itself a strategic decision. R&D intensity (R&D spend as a % of revenue) varies hugely by industry — very high in pharmaceuticals and semiconductors, low in, say, food retailing. The right level of spending is the level that is proportionate to the firm's resources and its market position: a cash-rich market leader in a technology-driven industry can justify heavy R&D; a small firm with tight finances usually cannot, and may compete better by imitating or improving on others' innovations.