QCAA Business study materials
QCAA Business study resources

QCAA Business: Business Growth and Decision-Making

QCAA Business · Work through your exam, one topic at a time.

All guide sections

Business Growth and Decision-Making

What you must understand

Growth can be internal (organic) through reinvestment, new products or markets, or external through mergers and acquisitions, joint ventures or strategic alliances. Distinguish horizontal integration (same industry level) from vertical integration (forward or backward along the supply chain) and diversification (unrelated markets). Explain motives: economies of scale, market power, risk spreading, access to resources. Explain risks: culture clash, integration costs, diseconomies of scale, regulatory scrutiny.

Decision-making tools include cost-benefit analysis, break-even analysis, decision trees and SWOT. Break-even output equals fixed costs divided by contribution per unit (price minus variable cost). Decision trees weight expected values by probabilities.

Traps in questions

  • Calling any merger horizontal when it is vertical or conglomerate.
  • Ignoring diseconomies of scale; bigger is not automatically cheaper.
  • Confusing break-even output with break-even revenue.
  • Forgetting qualitative factors such as staff morale and brand reputation.

Worked example

Fixed costs are $40,000, price $20, variable cost $12. Contribution is $8, so break-even output is 5,000 units. Rule of thumb: always show the formula, substitute values, then interpret what the result means for the decision.

Rule of thumb

For growth questions, state the type, the motive, the risk and the likely effect on stakeholders before recommending.