Urban expansion of the city of Tunis, source of distortion of inter-zones balance between housing supply and employment, does only increase daily mobility and increases pressure on public transportation in terms of traffic, on transportation infrastructure in terms of congestion and on the...

The transition from economic stagnation to sustained growth is often modelled thanks to “population-induced” productivity improvements, which are assumed rather than derived from primary assumptions. In this paper the effect of population on productivity is derived from optimal behavior....

This paper presents an in-depth analysis of hilliness effects in American urban communities. Using data from seventeen cities, we establish robust relationships between topography and density, income and housing value gradients. We find that high-income households display strong preference not...