The directions of research on innovation or on the staging of innovative processes progress have evaluated over time from an innovational perspective constraint within an activity pursued by the entrepreneur (regarded as an entity creating possible and numerous innovative combinations) to an...

We ask how to share the cost of finitely many public goods (items) among users with different needs: some smaller subsets of items are enough to serve the needs of each user, yet the cost of all items must be covered, even if this entails inefficiently paying for redundant items. Typical...

World's population has become lately a predominantly urban population: out of the 6.5 billion world's population, 3.3 billion live in cities. In a global context, cities have become the places where new services are developed, serving as hubs for networks that are ever wider and ever more...