We present a model for the dynamics of networks in which edges represent positions in organizations, holders of which are connected to each other when the positions belong to the same organization. Once a vacancy is opened, the new employee can be hired from the current network. In particular,...

"Closing borders is naive, the virus will come regardless" - this was the policy assumption that was repeatedly stated until mid-March by the WHO, the EU, as well as responsible authorities in Germany and other countries. Meanwhile, other states had started closing their borders to travellers...

In markets with search frictions, consumers can acquire information about goods either through costly search or from friends via word-of-mouth (WOM) communication. How do sellers’ market power react to a very large increase in the number of consumers’ friends with whom they engage in WOM?...

Consumers can acquire information through their own search efforts or through their social network. Information diffusion via word-of-mouth communication leads to some consumers free-riding on their “friends” and less information acquisition via active search. Free-riding also has an...

I empirically assess the importance of socially interdependent origin cultures as opposed to socially independent ones for network effects in inter-national migration. I propose that societies that emphasise collectivist behaviour accumulate larger levels of communityspecific social capital than...

We investigate the cases when the Bonacich measures of strongly connected directed bipartite networks can be interpreted as a Nash equilibrium of a non-cooperative game. One such case is a two-person game such that the utility functions are bilinear, the matrices of these bilinear forms...

This paper examines how a change in layoff order can affect the decomposition and the size of unemployment in an equilibrium model where workers make optimal occupational reallocation decisions. In a calibrated model, a policy that concentrates involuntary unemployment incidences to...

An undirected connected bimodal network has two Bonacich measures quantifying the centrality of the nodes. We show that the product of Bonacich measures of an undirected bimodal network may be viewed as a product measure that is nearest (w.r.t. Euclidean norm) to the matrix representing the...

This paper studies Finnish firms and especially it's boardroom network and the effects that it has on financial actions. Compared with earlier studies, this study also takes into consideration both firms that are not connected and uses them as a natural comparison, as well as principal component...

We study axiomatically recursive clustering methods for networks. Such methods can be used to identify community structures of a network. One of the methods is based on identifying a node subset that maximizes the average degree within this subset. Once such a subset is found, the method is...