This paper relates to current concerns about the high concentration of digital platform markets and the effects of large companies such as Amazon, Facebook, Google, and Microsoft, on innovation. Several stakeholders and analysts assert that digital platforms have become so dominant that they...

The rollout of fifth generation mobile networks is progressing around the world, but 5G looks especially expensive compared to previous generations. Network sharing between two or more mobile operators is an obvious way to attain significant cost savings, but may also raise competition concerns....

For the ongoing and upcoming auctioning of 5G spectrum an important question is, what drives network quality in mobile markets? When comparing the provided mobile network quality between various EU countries considerable differences between these markets become apparent, which cannot be solely...