Parallel Search for Information in Continuous Time—Optimal Stopping and Geometry of the PDE
Parallel Search for Information in Continuous Time—Optimal Stopping and Geometry of the PDE
复制标题
连续时间内的信息并行搜索——偏微分方程的最佳停止和几何
DOI:
10.1007/s00245-022-09862-3
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发表时间:
2022
影响因子:
1.8
通讯作者:
Zhang, Yuming Paul
中科院分区:
文献类型:
--
作者:
Ke, T. Tony;Tang, Wenpin;Villas-Boas, J. Miguel;Zhang, Yuming Paul
We consider the problem of a decision-maker searching for information on multiple alternatives when information is learned on all alternatives simultaneously. The decision-maker has a running cost of searching for information, and has to decide when to stop searching for information and choose one alternative. The expected payoff of each alternative evolves as a diffusion process when information is being learned. After establishing the well-posedness of the equation, we show that the optimal boundary where search is stopped (free boundary) is star-shaped, and present an asymptotic characterization of the value function and the free boundary. We prove that the distance between the free boundary and each point on the diagonal is logarithmic in the number of alternatives.
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影响因子:
64.8
作者:
Philip Ball
通讯作者:
Philip Ball
DOI:
10.1214/19-aap1517
发表时间:
2018
期刊:
The Annals of Applied Probability
影响因子:
--
作者:
T. Angelis;G. Peskir
通讯作者:
G. Peskir
DOI:
10.1080/1045112021000015331
发表时间:
2002
期刊:
Stochastics and Stochastic Reports
影响因子:
--
作者:
Bruno Bassan;Claudia Ceci
通讯作者:
Claudia Ceci
影响因子:
0.7
作者:
R. Bañuelos;B. Øksendal
通讯作者:
B. Øksendal
影响因子:
1.7
作者:
Arina Nikandrova;Romans Pancs
通讯作者:
Romans Pancs