We analyze platform competition where user data is collected to improve adtargeting. Considering that users incur privacy costs, we show that the equilibrium level of data provision is distorted and can be inefficiently high or low: if overall competition is weak or if targeting benefits are...

The use of Internet of Things devices (IoT) by individuals in their homes has led to new opportunities for companies, to adapt their products, services and offers, based on the user profile. At the same time, these new services involve the reinterpretation of existing requirements regarding data...