Temporary and permanent
Internal and external
Managerial and industrial
Natural and artificial
✅ The correct answer is B.
Economies of scale are of two kinds Internal and external. Internal economies of scale are firm-specific or caused internally while external economies of scale occur based on larger changes outside the firm. Both result in declining marginal costs of production, yet the net effect is the same.
Economies of scale are of two kinds Internal and external. Internal economies of scale are firm-specific or caused internally while external economies of scale occur based on larger changes outside the firm. Both result in declining marginal costs of production, yet the net effect is the same.