This paper questions the widely applied parallelism of demographic and economic development in characterizing urban shrinkage in Germany, and argues that the usage of population change as a single indicator leads to incorrect policy recommendations for combating urban shrinkage. As the cases of...

We develop a model where the unemployed workers in the city can find a job either directly or through weak or strong ties. We show that, in denser areas, individuals choose to interact with more people and meet more random encounters (weak ties) than in sparsely populated areas. We also...