Technological change is transforming creative media industries. Digitisation lowers recording, storage, reproduction and distribution costs, while computer-based editing facilitates higher quality and special effects. With electronic distribution a vast range of content can be made available to...

This paper considers irreversible investment in competing research projects with uncertain returns under a winner-takes-all patent system. Uncertainty takes two distinct forms: the technological success of the project is probabilistic, while the economic value of the patent to be won evolves...