The provision of public transit is thought to reduce travel time losses that are due to car congestion. For this reason, it is economically justified to subsidise public transit from a welfare perspective as it creates a congestion-relief benefit. The main goal of this paper is to quantify the...

In this paper, we undertake an in-depth inquiry into the nature of sharing externalities, and study how they affect the market outcome. We show that the key thing for understanding sharing externalities is the interplay between two forces: the specialization/complexity effect, on the one hand,...

The problem of competitiveness has becoming one of the main concerns of European governments. This is reflected trough out the Europe 2020 Strategy that includes as key priority the promotion of efficient and productive use of inputs. Differently to other "well-behaved" European "neighbours", in...

In population declining countries, public services in rural areas face potential problematic issues on the long-run sustainability, which are namely brought by insufficient economies of scale. Since these services play important roles as social infrastructure elements, a disappearance from the...

We study optimal subsidies for renewable energy (RE) generation to internalize external benefits from intertemporal learning-by-doing spillovers, taking into account increasing marginal costs at the industry level due to limited availability of sites suitable for RE. We find that the optimal RE...