We study the diffusion of a true and a false opinion (the rumor) in a social network. Upon hearing an opinion …

firms. Under the proposed information mechanism, consumers share their initial information with the members of their network … characterizing how many different pieces of information a network is likely to contain. This informativeness is crucial for the … results are robust to the introduction of sequential search and network segregation, but an increase in segregation decreases …

in the network is contingent on the accuracy of opinions. Agents have opinions about a state of the world and form links …

We combine network formation and information transmission in a simple model and predict that people reveal less …

, we construct an information-network model incorporating both information transmitters and information aggregators. Given … network equilibrium, its optimality and the patterns of equilibrium and optimal configuration. We then allow for endogenous … costs, the monocentric network with one aggregator connecting to all other agents as transmitters on a tree graph is the …

network of agents. In our model, agents are identically informed a priori and observe network neighbors’ actions as well as … observed payoffs and imitate observed actions. Our results also allow us to interpret critical mass and network brokerage …