Final answer:
Agency theory suggests that information technology improvements enable firms to reduce costs and oversee a larger workforce, affecting firm size and market competition.
Step-by-step explanation:
According to agency theory, improvements in information technology and networks can lead to cost reductions for firms by facilitating market participation and enabling managers to oversee more employees effectively. The advent of advanced telecommunications and the rise of information and communication technologies have made it possible for firms to manage long-distance economic connections more efficiently.
This has implications for the cost of production as technology allows for a variety of ways to combine inputs for outputs, often leading to substitution between labor and physical capital. The controversy revolves around whether this will result in a trend towards smaller firms with wider market access, or larger firms with economies of scale, leading to winner-take-all markets.