Platform interoperability is considered a powerful tool to promote competition in digital markets when network effects are at play. We study the effect of interoperability on competition between two ad-financed platforms, allowing for endogenous multi-homing of consumers. When the platforms are...

The paper elaborates on socio-cultural circumstances of advertisement. Many examples of promotion campaigns are mentioned. The main European advertisement styles are also described. There are many arguments in favour of either standardization or adaptation. Nevertheless socio-cultural aspects...