Showing 1 - 10 of 220
Agents involved in the formation of a social or economic network typically face uncertainty about the benefits of creating a link. However, the interplay of such uncertainty and risk attitudes has been neglected in the network formation literature. We propose a dynamic network formation model...
Persistent link: https://www.econbiz.de/10011386449
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/10011801379
asset liquidity risk arises even under minimal fundamental risk. To study the role of illiquidity we introduce realistic … not available in a run, asset liquidity risk has a concave effect on run incentives, quite unlike fundamental risk. Runs … are rare when asset liquidity is abundant, become more frequent as it falls and decrease again under very low asset …
Persistent link: https://www.econbiz.de/10011556199
: undiversifiable interest rate risk and shocks to aggregate liquidity demand. Mutual funds are inefficient when the economy faces … undiversifiable interest rate risk. However, if only aggregate liquidity demand is stochastic, mutual funds can implement the social … optimum even when liquidity demand is not directly observed. …
Persistent link: https://www.econbiz.de/10011339154
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/10010227321
Persistent link: https://www.econbiz.de/10011431541
This paper examines the optimal allocation of risk across generations whose savings mix is subject to illiquidity in the form of uncertain trading costs. We use a stylized two-period OLG framework, where each generation makes a portfolio allocation decision for retirement, and show that...
Persistent link: https://www.econbiz.de/10013175574
Neumann-Morgenstern expected utility functions using cooperative game theory. The social network literature studies various …
Persistent link: https://www.econbiz.de/10014369587
that theory predicts an inversion when consumers are either risk or loss averse. In those cases, an increase in price …
Persistent link: https://www.econbiz.de/10011520488
This paper formalizes the idea that more hedging instruments may destabilize markets when traders are heterogeneous and adapt their behavior according to experience based reinforcement learning. We investigate three different economic settings, a simple mean-variance asset pricing model, a...
Persistent link: https://www.econbiz.de/10011349702