This paper investigates the impact of technical progress on the relationship between competition an investment. Using a … find that technical progress, which increases the impact of investment on cost reduction, decreases the level of … competition that maximizes investment of the industry. This feature holds also for consumer surplus and Welfare. In the model …

In this paper, we design a theoretical model to analyze the impact of the number of firms on investment in the wireless … communications industry. Our model extends the Salop's framework by introducing investment in quality that either reduces the … their incentives to invest in quality. The impact on the aggregate industry investment can be non-monotone. These …