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Diffusion of Behavior in Network Games Orchestrated by Social Learning

Huang, Jia-Ping; Koster, Maurice; Lindner, Ines - 2013

The novelty of our model is to combine models of collective action on networks with models of social learning. Agents are connected according to an undirected graph, the social network, and have the choice between two actions: either to adopt a new behavior or technology or stay with the default...

Persistent link: https://www.econbiz.de/10010328348

Naϊve Learning in Social Networks with Fake News: Bots as a Singularity

Badri, Saeed; Heidergott, Bernd; Lindner, Ines - 2022

We study the impact of bots on social learning in a social network setting. Regular agents receive independent noisy signals about the true value of a variable and then communicate in a network. They na¨?vely update beliefs by repeatedly taking weighted averages of neighbors' opinions. Bots are...

Persistent link: https://www.econbiz.de/10014321772

Naïve Learning in Social Networks with Random Communication

Heidergott, Bernd; Huang, Jiaping; Lindner, Ines - 2018

We study social learning in a social network setting where agents receive independent noisy signals about the truth. Agents naïvely update beliefs by repeatedly taking weighted averages of neighbors' opinions. The weights are fixed in the sense of representing average frequency and intensity of...

Persistent link: https://www.econbiz.de/10011819533

Valuation Monotonicity, Fairness and Stability in Assignment Problems

van den Brink, René; Núñez, Marina; Robles, Francisco - 2018

Shapley value, but is incompatible with stability. A main goal in this paper is to weaken valuation fairness in such a way … that it is compatible with stability. It turns out that requiring equal changes only for buyers and sellers that are … matched to each other before as well as after the change, is compatible with stability. In fact, we show that the only stable …

Persistent link: https://www.econbiz.de/10011932342

Exploitation and Cooperation in Networks

Galeotti, Andrea; Meléndez, Miguel - 2004

A fundamental question in social sciences is how trust emerges. We provide an answer which relies on the formation of social and economic relationships. We argue that behind trust lies the fact that individuals invest in connections taking into account the potential externalities networks...

Persistent link: https://www.econbiz.de/10010325280

One-way Flow Networks: the Role of Heterogeneity

Galeotti, Andrea - 2004

I study a one-way flow connections model in which players are heterogeneous with respect to values and the costs of establishing a link. I first show that values and costs asymmetries are crucial in determining the level of connectedness of a network. Interestingly, unconnected equilibria are...

Persistent link: https://www.econbiz.de/10010325361

Two-way Flow Networks with Small Decay

Jaegher, K. De; Kamphorst, J.J.A. - 2010

This paper characterizes the set of equilibrium networks in the two-way flow model of network formation with small decay, and this for all increasing benefit functions of the players. We show that as long as the population is large enough, this set contains large- as well as small-diameter...

Persistent link: https://www.econbiz.de/10010325763

Confirming Information Flows in Networks

Billand, Pascal; Bravard, Christophe; Kamphorst, Jurjen; … - 2012

Social networks, be it on the internet or in real life, facilitate information flows. We model this by giving agents incentives to link with others and receive information through those links. In many networks agents will value confirmation of the information they receive from others. Our paper...

Persistent link: https://www.econbiz.de/10010326421

Collaboration in Bipartite Networks, with an Application to Coauthorship Networks

Hsieh, Chih-Sheng; König, Michael; Liu, Xiaodong; … - 2020

This paper studies the impact of collaboration on research output. First, we build a micro founded model for scientific knowledge production, where collaboration between researchers is represented by a bipartite network. The equilibrium of the game incorporates both the complementarity effect...

Persistent link: https://www.econbiz.de/10012427156

Diffusion of Behavior in Network Games Orchestrated by Social Learning

Huang, Jiaping - 2014

Persistent link: https://www.econbiz.de/10013061677