Zenger's theory of the firm suggests that the decision to vertically integrate is driven by: Focus on external partnerships Need to increase competition Pursuit of economies of scale Desire to reduce market share Zenger's theory of the firm emphasizes the importance of what factor in shaping a firm's boundaries? Resource constraints Industry standards Government regulations Customer preferences According to Zenger, what is a key advantage of keeping certain activities within the boundaries of a firm rather than outsourcing them? Lower operational expenses Enhanced coordination and innovation Reduced control over operations Increased transaction costs