We consider a model of an information network where nodes can fail and transmission of information is costly. The formation of paths in such networks is modeled as the Nash equilibrium of an N player routing game. The task of obtaining this equilibrium is shown to be NP-Hard. We derive...

This paper addresses the existence of Nash equilibria in one-way flow or directed network models in a number of different settings. In these models players form costly links with other players and obtain resources from them through the directed path connecting them. We find that heterogeneity in...

We examine the process of building social relationships as a non-cooperative game that requires mutual consent and involves reaching out to others at a cost. Players create their social network from amongst their set of acquaintances. Having acquaintances allows players to form naive beliefs...

We consider a linear city model where both firms and consumers have to incur transport costs. Following a standard Hotelling (1929) type framework we analyze a duopoly where firms facing a continuum of consumers choose locations and prices, with the transportation rate being linear in distance....

This paper provides a way of evaluating a player's contribution to her team and relates her effort to her salaries. We collect data from UEFA Euro 2008 Tournament and construct the passing network of each team. Then we determine the key player in the game while ranking all the other players too....

This paper examines whether government ideology has influenced monetary policy in OECD countries. We use quarterly data in the 1980.1-2005.4 period and exclude EMU countries. Our Taylor-rule specification focuses on the interactions of a new time-variant index of central bank independence with...

I test if parties matter with respect to the allocation of public expenditures in Germany. Considering the allocation of rights and duties due to the federal structure, two econometric models are estimated. First, a SURE model analyses spending at the federal level for the period from 1950 to...

This paper examines the effects of political determinants on the allocation of public expenditures. Analyzing an OECD panel from 1990 to 2004, a SURE model controls for the contemporaneous correlation between the different expenditure categories (COFOG). I find that left governments set other...

This paper examines how policy affects social expenditures. Analyzing an OECD panel from 1980 to 2003, five political variables are tested: Election- and pre-election years, the ideological party composition of the governments, the number of coalition partners and the fact, if the ruling...

This paper examines how politicians influenced social security policy in Germany. Using yearly data from the German Pension Insurance from 1957 to 2005, revenues as well as expenditures are analysed in linear regression models, respectively. In accordance with opportunistic political behaviour,...