Profit: risk, uncertainty and innovation theories

1. Meaning of profit

Profit is the reward of the entrepreneur, the factor that organises production and bears its risks. Unlike rent, wages and interest, which are contractual and fixed in advance, profit is a residual: what is left after all other factors have been paid. It may be positive, zero or negative, and it fluctuates more than any other factor income.

• Gross profit: total revenue minus explicit costs. It includes the entrepreneur’s implicit rent, wages and interest on his own factors, depreciation, and net profit.
• Net (pure) profit: gross profit minus these implicit returns. It is the reward for enterprise alone.
• Normal profit: the minimum profit needed to keep the entrepreneur in the industry in the long run. Economists treat it as part of cost.
• Supernormal (abnormal) profit: profit above normal. It attracts new firms and, under competition, disappears in the long run.

Other theories, set less often: the rent theory (F.A. Walker: profit is the rent of the superior ability of entrepreneurs, as rent is of superior land), the wages theory (F.W. Taussig: profit is the wage of the entrepreneur’s labour) and the dynamic theory (J.B. Clark: profit arises only from change in a dynamic economy, in population, capital, technique, organisation and wants, and disappears in a static one).

2. Risk theory (Hawley)

The American economist F.B. Hawley argued that profit is the reward for risk-taking. Every business involves risk because production is undertaken in advance of demand. The entrepreneur, by bearing the risk, relieves other factors of it, and they are paid fixed incomes. Nobody would bear risk without expecting a reward greater than the expected loss; that excess is profit. The greater the risk, the higher the profit must be to draw entrepreneurs in.

Criticism:

• Not all risks give rise to profit. Risks that can be insured against (fire, theft) are covered by a premium, which is a cost, not a source of profit (Knight’s point, below).
• Profit also arises from monopoly, ability and innovation, not risk alone.
• Carver argued that profits arise because the best entrepreneurs avoid or reduce risk, not because they bear it.
• The theory does not explain why some risk-bearers earn large profits and others losses.

3. Uncertainty-bearing theory (Knight)

Frank H. Knight (Risk, Uncertainty and Profit, 1921) refined Hawley’s theory by dividing risks into two kinds.

Profit, for Knight, is the reward for bearing non-insurable risk, i.e. uncertainty. The uncertainties he listed include competitive risk (entry of new rivals), technical risk (obsolescence of methods), risk of government action (new taxes, controls), and cyclical risk (depressions). An entrepreneur who judges correctly under uncertainty earns profit; one who judges wrongly makes a loss. In a world without uncertainty, with perfect foresight, there would be no profit, only payments to factors.

Worked illustration: a firm insures its factory against fire at Rs. 50,000 a year; this is a cost included in its accounts. It also introduces a new range of garments whose demand no insurer will cover. If the range sells well the firm earns Rs. 8 lakh above all costs; that Rs. 8 lakh is profit in Knight’s sense, the reward for bearing that uncertainty.

Criticism:

• Uncertainty-bearing is not a separate factor of production that can be measured or priced.
• Profit also arises from monopoly power and innovation, which have little to do with uncertainty.
• In modern joint-stock companies uncertainty is borne by shareholders, while decisions are made by salaried managers; the link between bearing uncertainty and earning profit is weakened.
• The theory is incomplete, though it is regarded as the most satisfactory of the risk theories.

4. Innovation theory (Schumpeter)

Joseph A. Schumpeter (The Theory of Economic Development, German 1911, English 1934) held that profit is the reward for innovation. He began with an economy in a circular flow: a static equilibrium where revenue just covers cost (including wages of management and interest), and there is no profit. Profit appears only when an entrepreneur introduces an innovation that lowers cost or raises demand.

Five kinds of innovation:

1. Introduction of a new product or a new quality of an existing one.
2. Introduction of a new method of production.
3. Opening of a new market.
4. Discovery of a new source of raw materials or semi-finished goods.
5. A new organisation of an industry, such as creating or breaking a monopoly.

Innovation is distinct from invention: an inventor discovers something; the innovator puts it to commercial use. The entrepreneur is the innovator. His profit is temporary: once the innovation succeeds, others imitate it (the “swarm” of imitators), cost advantages are competed away, and profit disappears until the next innovation. Schumpeter called this process creative destruction (in Capitalism, Socialism and Democracy, 1942) and used it to explain trade cycles and economic development.

Criticism:

• It ignores risk and uncertainty as a source of profit; Schumpeter held that risk is borne by the capitalist, not the entrepreneur.
• Profit also arises from monopoly and from favourable market conditions without any innovation.
• It treats the innovator as a heroic individual, whereas modern innovation is done by research departments of large firms.
• It explains the origin of profit but not its amount.

Principles of Economics covers the innovation theory in interest and profit.

How this is examined

February 2025 (100-mark) set “Risk and uncertainty theory of profit” as a 10-mark part of Q.9; January 2026 (100-mark) set “Innovation theory of profit” the same way. For risk and uncertainty: meaning of profit, Hawley in a paragraph with its weakness, then Knight with the risk-uncertainty table and the example. For innovation: circular flow, five innovations, innovation versus invention, temporary profit and imitation, creative destruction, criticism.