Which of the following kinds of mergers describe the following statement?'Merger of firms involved in different parts of the production process of a good.'

MCQs on major topics and theories in the field of Industrial Organization. Topics include: Market structure analysis and the strategic behaviors of competing firms, including (but not limited to) product differentiation, collusion, price discrimination, pricing strategy, non-price discrimination (i.e. advertising), horizontal mergers, vertical integration, and vertical restraints.