BTtest

Estimate the Number of Factors in Large Nonstationary Datasets

CRAN Package

Large panel data sets are often subject to common trends. However, it can be difficult to determine the exact number of these common factors and analyse their properties. The package implements the Barigozzi and Trapani (2022) doi:10.1080/07350015.2021.1901719 test, which not only provides an efficient way of estimating the number of common factors in large nonstationary panel data sets, but also gives further insights on factor classes. The routine identifies the existence of (i) a factor subject to a linear trend, (ii) the number of zero-mean I(1) and (iii) zero-mean I(0) factors. Furthermore, the package includes the Integrated Panel Criteria by Bai (2004) doi:10.1016/j.jeconom.2003.10.022 that provide a complementary measure for the number of factors.

  • Version0.10.3
  • R version≥ 3.5.0
  • LicenseGPL (≥ 3)
  • Needs compilation?Yes
  • Last release08/28/2024

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