This discussion paper has resulted in a publication in the <A href="http://aa4pq3kw5l.search.serialssolutions.com/directLink?&atitle=Economics%3A%20An%20Emerging%20Small%20World&author=Sanjeev%20Goyal%3B%20Marco%20J%20van%20der%20Leij%3B%20José%20Luis%20Moraga%2DGonzález&issn=00223808&title=The%20Journal%20of%20Political%20Economy&volume=114&issue=2&date=20060401&spage=403&id=doi:&sid=ProQ_ss&genre=article&lang=en">'Journal of Political Economy'</A>.<P>This paper examines the small world hypothesis. The first part of the paper presents empirical evidence on the evolution of a particular world: the world of journal publishing economists during the period...</p></a>

This paper examines the small world hypothesis. The first part of the paper presents empirical evidence on the evolution of a particular world: the world of journal publishing economists during the period 1970-2000. We find that in the 1970's the world of economics was a collection of islands....

In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity of strong ties, we reject the hypothesis that weak ties...

This discussion paper led to a publication in the <A href="http://www.degruyter.com/view/j/rne.2011.10.2/rne.2011.10.2.1278/rne.2011.10.2.1278.xml">'Review of Network Economics'</A>, 2011, 10(2), 1-20.<P> In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find...</p></a>

We consider a non-cooperative model of information networks where communication is costly and not fully reliable. We examine the nature of Nash networks and efficient networks. <p>We find that if the society is large, and link formation costs are moderate, Nash networks as well as efficient...</p>

We study a setting in which individual players choose their partners as well as a mode of behavior in 2×2 anti-coordination games – games where a player’s best response is to choose an action unlike that of her partner. We characterize the equilibrium networks as well as study the effects...