Cities emerge from the spatial concentration of people and economic activities. But spatial concentration is not enough; the economic viability of cities depends on people, ideas, and goods to move rapidly across the urban area. This constant movement within dense cities creates wealth but also...

Local zoning and land-use regulations have increased substantially over the decades. These constraints on land development within cities and suburbs aim to achieve various safety, environmental, and aesthetic goals. But the regulations have also tended to reduce the supply of housing, including...

The high influx of refugees confronts Germany with a variety of tasks and problems. In addition to short-term challenges such as geographically allocating and accommodating refugees, longer-term tasks involving housing, regional and integration policy also need to be addressed. Notwithstanding...