The effect of human mobility restrictions on the COVID-19 transmission network in China.

Autor: Tatsushi Oka, Wei Wei, Dan Zhu

Publikováno v: PLoS ONE, Vol 16, Iss 7, p e0254403 (2021)

BackgroundCOVID-19 poses a severe threat worldwide. This study analyzes its propagation and evaluates statistically the effect of mobility restriction policies on the spread of the disease.MethodsWe apply a variation of the stochastic Susceptible-Inf

Externí odkaz: https://doaj.org/article/e8aa1016f2aa4deca4b4c84f4c993bea

Inference related to common breaks in a multivariate system with joined segmented trends with applications to global and hemispheric temperatures

Autor: Pierre Perron, Francisco Estrada, Tatsushi Oka, Dukpa Kim

Publikováno v: Journal of Econometrics, 214(1), 130-152. Elsevier BV
Kim, D, Oka, T, Estrada, F & Perron, P 2020, ' Inference related to common breaks in a multivariate system with joined segmented trends with applications to global and hemispheric temperatures ', Journal of Econometrics, vol. 214, no. 1, pp. 130-152 . https://doi.org/10.1016/j.jeconom.2019.05.008

What transpires from recent research is that temperatures and radiative forcing seem to be characterized by a linear trend with two changes in the rate of growth. The first occurs in the early 60s and indicates a very large increase in the rate of gr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f1e8aa80f8a2f095c991657256d68b6
https://doi.org/10.1016/j.jeconom.2019.05.008

Indirect inference with a non-smooth criterion function

Autor: Dan Zhu, David T. Frazier, Tatsushi Oka

Publikováno v: Journal of Econometrics. 212:623-645

Indirect inference requires simulating realisations of endogenous variables from the model under study. When the endogenous variables are discontinuous functions of the model parameters, the resulting indirect inference criterion function is disconti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24af956de4b05af6a6acd1bc19fa1c92
https://doi.org/10.1016/j.jeconom.2019.06.003

A Spatial Stochastic SIR Model for Transmission Networks with Application to COVID-19 Epidemic in China

Autor: Wei Wei, Dan Zhu, Tatsushi Oka

Governments around the world have implemented preventive measures against the spread of the coronavirus disease (COVID-19). In this study, we consider a multivariate discrete-time Markov model to analyze the propagation of COVID-19 across 33 provinci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e9c5cb539c9ef96b9916c50aca47639

Testing for common breaks in a multiple equations system

Autor: Pierre Perron, Tatsushi Oka

Publikováno v: Journal of Econometrics. 204:66-85

The issue addressed in this paper is that of testing for common breaks across or within equations of a multivariate system. Our framework is very general and allows integrated regressors and trends as well as stationary regressors. The null hypothesi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1e21a8a986ba3777e5753143f489cd7
https://doi.org/10.1016/j.jeconom.2018.01.003