Diseconomies of scale are most likely to occur when:
larger firms are able to negotiate lower interest rates on financial loans.
communication and coordination across multiple layers of management become more complex as the firm expands.
workers specialise in specific tasks, leading to gains in productive efficiency.
advertising and marketing costs are spread over a larger volume of sales.
156 exam-style questions on AQA A Level Economics 1.4 Production, costs and revenue, covering 1.4.1 Production and productivity, 1.4.2 Specialisation, division of labour and exchange, 1.4.3 The law of diminishing returns and returns to scale (A-level only), 1.4.4 Costs of production, 1.4.5 Economies and diseconomies of scale, 1.4.6 Marginal, average and total revenue, 1.4.7 Profit, and 1.4.8 Technological change (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.