Abstract

Structural problems in modern societies, such as climate change and congestion problems, require 'transitions' towards a more susTWNnable fulfilment of social needs. Recent research shows that experimenting in niches is crucial for learning about social challenges and stimulating [...]

Abstract

Rapid adoption of smartphones and the business success of the Apple App Store have resulted in the rampant growth of mobile applications. Seeking new revenue opportunities from application development has created a gold rush. However, free or very cheap applications constitute a great [...]