Life expectancy in West African countries: Evidence of convergence and catching up with the north

• Authors: OlaOluwa S. Yaya , Oluwaseun A. Otekunrin , Ahamuefula E. Ogbonna

Abstracts

EN

The article aims to investigate the possibility of the convergence and catching up of life expectancy values observed in West African countries with those noted in North African countries. Following the theory of time series convergence, documented in Bernard and Durlauf (1996) and Greasley and Oxley (1997), more robust unit root tests, based on the Fourier nonlinearity and instantaneous breaks proposed in Furuoka (2017), are used in investigating the convergence of each pair of a West African country and its North African counterpart. As no unit root in the differences of the pairs implies convergence, the results obtained by means of the new statistical approach quite outperform those produced by classical unit root tests. The results provide general evidence of the convergence of life expectancy values recorded in West Africa and North Africa.

Keywords

EN

unit root; unit root; unit root; unit root; unit root; unit root

• Publisher: Główny Urząd Statystyczny
• Journal: Statistics in Transition new series
• Year: 2021
• Volume: 22
• Issue: 1
• Pages: 75-88

Contributors

author

OlaOluwa S. Yaya

• Economic and Financial Statistics Unit, Department of Statistics, University of Ibadan, Ibadan
• Nigeria & Honorary Research Fellow, ILMA University, Karachi, Pakistan

• https://orcid.org/0000000275543507

author

Oluwaseun A. Otekunrin

• Statistical Design of Investigations Unit, Department of Statistics, University of Ibadan, Ibadan, Nigeria

• https://orcid.org/0000000241931413

author

Ahamuefula E. Ogbonna

• Economic and Financial Statistics Unit, Department of Statistics, University of Ibadan, Ibadan
• Nigeria & Centre for Econometric and Allied Research, University of Ibadan, Ibadan, Nigeria

• https://orcid.org/0000000291275231

Identifiers

DOI

10.21307/stattrans-2021-004

Biblioteka Nauki

1047371