I develop a dynamic investment game with a "memoryless" R&D process in which an incumbent and an entrant can invest in a new technology, and the entrant can also invest in the old technology. I show that an increase in the probability of successfully implementing a technology can cause the...

This note investigates the possibility of profit raising entry in network industries where firms follow Corporate Social Responsibility (CSR) behaviours, showing the interaction between the network and CSR features. In particular, for high levels of the network effect, an incumbent’s profits...

Incumbent firms have two basic possibilities to improve their competitive position in the product market: investment in R&D and the creation of entry barriers to the disadvantage of potential rivals, e.g. through lobbying activities, campaign contributions, bribes or the adoption of incompatible...