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Joint Econometrics and Statistics Workshop

Learning Financial Network with Misspecification via Double Regularized GMM

Weining Wang, joint with Victor Chernozhukov and Chen Huang

Friday 07 May 2021 12:00 - 13:00

Due to the onging coronavirus outbreak, many of our seminars and public events this year will continue as online seminars. Please check our website listings and Twitter feed @STICERD_LSE for updates.


About this event

Financial network analysis has gained significant attention recently. The identification, estimation and inference issues are intrinsically important in understanding the underlying network structure. We try to uncover the network effect with a predetermined adjacency matrix, and in addition we allow a flexible network specification by incorporating an unobserved network structure. In particular, the unobserved network structure can be regarded as latent or misclassified network linkages. To achieve high quality estimator for parameters in both components, we propose to estimate via a double regularized high dimensional GMM framework. Moreover, this framework also facilitates us to conduct the inference. The theory of consistency and asymptotic normality is provided with accounting for general spatial and temporal dependency of the underlying data generating processes. Simulations demonstrate good performance of our proposed estimation and inference procedure.

Econometrics and Statistics seminars are held on Fridays in term time at 12:00-13:00, ONLINE, unless specified otherwise.

Seminar organisers: Dr Tatiana Komarova and Dr Yunxiao Chen.

For further information please contact Lubala Chibwe, either by email: l.chibwe@lse.ac.uk.

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