On Spatio-Temporal Model with Diverging Number of Thresholds and its Applications in Housing Market

Abstract

Spatio-temporal data analysis is an emerging research area due to the development and application of novel computational techniques allowing for the analysis of large spatio-temporal databases. We consider a general class of spatio-temporal linear models, where the number of structural breaks can tend to infinity. A procedure for simultaneously detecting all the change points is developed rigorously via the construction of adaptive group lasso penalty. Consistency of the multiple change point estimation is established under mild technical conditions even when the true number of change points

s_n

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diverges with the series length n. The adaptive group lasso can be substituted by the group lasso and other non-convex group selection penalty functions such as group SCAD or group MCP. The simulation studies demonstrate that our procedure is stable and accurate. Two empirical examples from property market, including the housing transaction price in Baton Rouge and the commodity apartment price in Hong Kong, are analyzed to fully illustrate the proposed methodology.

Keywords

Change points / Balanced panel data dynamic linear models / Group selection / Real estate market / Spatio-temporal data

Funding

National Natural Science Foundation of China(No.11571337)

Key Programme(No.71631006)

Natural Sciences and Engineering Research Council of Canada(Grant No. RGPIN-2017-05720)

RIGHTS & PERMISSIONS

School of Mathematical Sciences, University of Science and Technology of China and Springer-Verlag GmbH Germany, part of Springer Nature