Mathematical modelling of the dynamical system of military population, focusing on the impact of welfare

Authors

  • Kazeem A. Tijani
    Department of Mathematics, Joseph Sarwuan Tarka University formerly Federal University of Agriculture, Makurdi, Benue State, Nigeria
  • Chinwendu. E. Madubueze
    Department of Mathematics, Joseph Sarwuan Tarka University formerly Federal University of Agriculture, Makurdi, Benue State, Nigeria
  • Isaac O. Onwubuya
    Department of Mathematics, Air Force Institute of Technology, Kaduna, Nigeria
  • Nkiruka Maria-Assumpta Akabuike
    Department of Statistics Federal polytechnic Oko, Anambra State, Nigeria
  • John Olajide Akanni
    Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, Tamil Nadu, India
    Department of Mathematical and Computing Sciences, Koladaisi University, Ibadan, Oyo State, Nigeria

Keywords:

Mathematical model, Disgruntlement, Global sensitivity analysis, Improved welfare

Abstract

In this work, we explored the concept of an improved welfare package for military personnel in Nigeria. This proposed package aims to address traditional needs while also meeting modern demands, such as mental health support. We recognise the critical importance of security jobs and the prompt payment of special operation allowances, as these factors provide military personnel with a sense of reassurance and stability. Key elements of the welfare package include upgrading qualified lower ranks to officer status, ensuring timely payment of death benefits to the families of military personnel who have died in active service, procuring standard and adequate weapons, and promoting equal treatment of all military personnel without bias. Poor welfare packages contribute significantly to dissatisfaction among Nigerian military personnel, which can hinder productivity and lead to unethical behaviour. Conversely, enhancing the welfare package can substantially boost productivity and reduce dissatisfaction. We formulated a deterministic military model to assess the impact of improved welfare on the productivity of Nigerian military personnel and to prevent dissatisfaction and misconduct. The model computes the disgruntlement reproduction number, Rm , which is used to demonstrate the local and global stability of both disgruntled and non-disgruntled equilibrium states. To further analyze the model, we conducted a global sensitivity analysis using Latin Hypercube Sampling (LHS) and the Partial Rank Correlation coefficient on Rm and military populations to identify the most sensitive parameters affecting military dynamics. Based on the results of this analysis, we extended the model by introducing a standard improved welfare package to control the most sensitive parameter. Numerical simulations showed that if an improved welfare package is intentionally implemented and maintained, dissatisfaction and misconduct among military personnel will drastically decrease, while productivity will significantly increase.

Dimensions

[1] B. N. Audu, “The origin and development of the Nigerian armed forces”, Polac Historical Review 3 (2019) 41. https://doi.org/ISSN:2476-8049.

[2] Constitution of the Federal Republic of Nigeria 1999, Lagos, Federal Government Press, 1999, pp. 217. http://www.nigeria-law.org/ConstitutionOfTheFederalRepublicOfNigeria.htm.

[3] B. Magashi, “Nigeria military is overstretched”, Premium Times (2023). [Online]. https://www.premiumtimesng.com/news/top-news/581754-nigeria-military-is-overstretched-defence-minister.html.

[4] M. U. Ugbong, “Enhancing Nigerian army welfare schemes towards improved personnel motivation”, Brazilian Army Strategic Studies International Course, 2021. [Online]. https://www.researchgate.net/publication/367375574_Enhancing_Nigerian_Army_welfare_schemes_towards_improved_personnel_motivation.

[5] A. Kabir, “Special report: Families of Nigerian soldiers killed in battles suffer amidst official neglect”, Premium Times (2022). [Online]. https://www.premiumtimesng.com/news/headlines/389136-special-report-families-nigerian-soldiers-killed-in-battles-suffer-amidst-official-neglect.html.

[6] A. E. Ochogwu & S. Mshelizah, “Troops’ morale and operational efficiency of the Nigerian military counterinsurgency against Boko Haram”, International Journal of Innovative Social Sciences & Humanities Research 9 (2021) 1. https://doi.org/ISSN:2354-292.

[7] Council of Supply Chain Management Professionals, The military role and personnel motivation, CSCMP, London, 2012. [Online]. https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://cscmp.org/CSCMP/CSCMP/Develop/Starting_Your_Career/Importance_of_Supply_Chain_Management.aspx&ved=2ahUKEwjr3M6w362OAxUSVkEAHeRPNwwQFnoECBsQAQ&usg=AOvVaw3bpk9iwY8r3TqdZ_xEPRL6.

[8] S. Sabil, L. Hakim, M. A. Lahat & Rosnto, “The role of employee welfare in improving work productivity in service companies”, West Science Interdisciplinary Studies 1 (2023) 1442. https://www.researchgate.net/publication/377160648_The_Role_of_Employee_Welfare_in_Improving_Work_Productivity_in_Service_Companies. DOI: https://doi.org/10.58812/wsis.v1i12.526

[9] I. S. Wokoma & F. U. Obasi, “Organizational welfare package and employee job satisfaction”, International Journal of Scientific Research in Education 16 (2023) 195. https://www.ijsre.com.ng/assets/vol.%2C-16(2)-ibifaka-samuel-wokoma.pdf.

[10] E. Onwubiko, “Military: combating endemic corruption”, The Guardian (2023). [Online]. https://guardian.ng/opinion/military-combating-endemic-corruption/.

[11] G. Poi, “Employee welfare packages and the performance of public organization in Rivers State, Nigeria”, European Journal of Research and Reflection in Management Sciences 8 (2020) 58. https://www.idpublications.org/wp-content/uploads/2022/01/Full-Paper-EMPLOYEE-WELFARE-PACKAGES-AND-THE-PERFORMANCE-OF-PUBLIC-ORGANIZATIONS-IN-RIVERS-STATE-NIGERIA.pdf.

[12] E. T. Ufoaroh, A. Udemezue & A. O. Anyadufu, “Employee welfare package and its impact on productivity (A case study of Roesons Industries Ltd Enugu-Ukwu, Anambra State, Nigeria)”, 2019. [Online]. http://file.sdiarticle3.com/wp-content/uploads/2019/06/Ms_JEMT_47701.pdf.

[13] “Military officers raised alarm over corruption, ethnic and religious bigot in Nigeria army, warn of dangers”, Sahara Reporter (2023). https://saharareporters.com/2023/05/14/military-officers-raise-alarm-over-corruption-ethnic-and-religious-bigots-nigerian-army.

[14] “Curbing corruption in the armed forces”, The Guardian (2021). [Online]. https://guardian.ng/opinion/curbing-corruption-in-the-armed-forces/.

[15] X. J. R. Avula, “Mathematical modeling”, in Encyclopedia of physical science and technology, Academic Press, New York, 2023, pp. 219. https://doi.org/10.1016/B0-12-227410-5/00411-7. DOI: https://doi.org/10.1016/B0-12-227410-5/00411-7

[16] N. Oigo & O. Jacko, “Mathematical modeling and analysis of mathematics anxiety behavior on mathematics performance in Kenya”, Journal of Advances in Mathematics and Computer Science 35 (2020) 46. https://doi.org/10.9734/jamcs/2020/v35i430269. DOI: https://doi.org/10.9734/jamcs/2020/v35i430269

[17] B. S. Kotola & S. W. Teklu, “A mathematical modeling analysis of racism and corruption codynamics with numerical simulation as infectious diseases”, Computational and Mathematical Methods in Medicine 2022 (2022) 9977727. https://doi.org/10.1155/2022/9977727. DOI: https://doi.org/10.1155/2022/9977727

[18] R. I. Gweryina, C. E. Madubueze & S. J. Ogaji, “Modeling the phenomenon of xenophobia in Africa”, Journal of Mathematical and Fundamental Sciences 53 (2021) 261. https://doi.org/10.5614/j.math.fund.sci.2021.53.2.7. DOI: https://doi.org/10.5614/j.math.fund.sci.2021.53.2.7

[19] Z. Alkhudhari, S. AL-Sheikih & S. Al-Tuwairqi, “Global dynamics of a mathematical model on smoking”, International Scholarly Research Notices 2014 (2014) 847075. https://doi.org/10.1155/2014/847075. DOI: https://doi.org/10.1155/2014/847075

[20] C. E. Madubueze, R. I. Gweryina & K. A. Tijani, “A dynamic of typhoid fever model with optimal control analysis”, Ratio Mathematica 41 (2021) 255. https://eiris.it/ojs/index.php/ratiomathematica/article/view/657.

[21] Constitution of the Federal Republic of Nigeria 1999. [Online]. http://www.nigeria-law.org/ConstitutionOfTheFederalRepublicOfNigeria.htm.

[22] Armed Forces Act CAP 2004. [Online]. https://www.google.com/search?q=Armed+Forces+Act+CAP+2004.

[23] F. Eromosele, “How Nigeria’s youth bulge can become a demographic dividend”, Vanguard (2022). [Online]. https://www.vanguardngr.com/2022/10/how-nigerias-youth-bulge-can-become-a-demographic-dividend/.

[24] “Nigeria life expectancy 1950-2023”, Macrotrends (2023). [Online]. https://macrotrends.net/countries/NGA/nigeria/life-expectancy.

[25] R. I. Gweryina, C. E. Madubueze & F. S. Kaduna, “Mathematical assessment of the role of denial on COVID-19 transmission with non-linear incidence and treatment functions”, Scientific African 12 (2021) e00811. https://doi.org/10.1016/j.sciaf.2021.e00811. DOI: https://doi.org/10.1016/j.sciaf.2021.e00811

[26] K. A. Tijani, C. E. Madubueze & R. I. Gweryina, “Typhoid fever dynamical model with cost-effective optimal control”, Journal of the Nigerian Society of Physical Sciences 5 (2023) 1579. https://doi.org/10.46481/jnsps.2023.1579. DOI: https://doi.org/10.46481/jnsps.2023.1579

[27] C. Castillo-Chavez, S. Blower, P. Van den Driessche, D. Kirschner & A. A. Yakubu, Mathematical approaches for emerging and reemerging infectious diseases: Models, methods and theory, Springer, New York, 2002. https://doi.org/10.1007/978-1-4613-0065-6. DOI: https://doi.org/10.1007/978-1-4613-0065-6

[28] N. Rahmi & M. I. Pratama, “Model analysis of diphtheria disease transmission with vaccination, quarantine, and hand-washing behavior”, JTAM (Jurnal Teori dan Aplikasi Matematika) 7 (2023) 462. https://doi.org/10.31764/jtam.v7i2.13466. DOI: https://doi.org/10.31764/jtam.v7i2.13466

[29] J. M. Heffernan, R. J. Smith & L. M. Wahl, “Perspectives on the basic reproductive ratio”, Journal of the Royal Society Interface 2 (2005) 281. https://doi.org/10.1098/rsif.2005.0042. DOI: https://doi.org/10.1098/rsif.2005.0042

[30] H. Abboubakar & R. Racke, “Mathematical modelling forecasting and optimal control of typhoid fever transmission dynamics”, Chaos, Solitons and Fractals 149 (2021) 111074. https://doi.org/10.1016/j.chaos.2021.111074. DOI: https://doi.org/10.1016/j.chaos.2021.111074

[31] S. M. Kassa, J. B. H. Njagarah & Y. A. Terefe, “Analysis of the mitigation strategies for COVID-19: From mathematical modelling perspective”, Chaos, Solitons and Fractals 138 (2020) 109968. https://doi.org/10.1016/j.chaos.2020.109968. DOI: https://doi.org/10.1016/j.chaos.2020.109968

[32] S. M. Blower & H. Dowlatabadi, “Sensitivity and uncertainty analysis of complex models of disease transmission: an HIV model, as an example”, International Statistical Review 62 (1994) 229. https://doi.org/10.2307/1403510. DOI: https://doi.org/10.2307/1403510

[33] S. Marino, I. B. Hogue, C. J. Ray & D. E. Kirschner, “A methodology for performing global uncertainty and sensitivity analysis in systems biology”, Journal of Theoretical Biology 254 (2008) 178. https://doi.org/10.1016/j.jtbi.2008.04.011. DOI: https://doi.org/10.1016/j.jtbi.2008.04.011

[34] M. A. Ali, S. A. Means, H. Ho & J. Heffernan, “Global sensitivity analysis of a single-cell HBV model for viral dynamics in the liver”, Infectious Disease Modelling 6 (2021) 1220. https://doi.org/10.1016/j.idm.2021.10.003. DOI: https://doi.org/10.1016/j.idm.2021.10.003

[35] C. E. Madubueze, K. A. Tijani & Fatmawati, “A deterministic mathematical model for optimal control of diphtheria disease with booster vaccination”, Healthcare Analytics 4 (2023) 100281. https://doi.org/10.1016/j.health.2023.100281. DOI: https://doi.org/10.1016/j.health.2023.100281

[36] T. Asada & H. Yoshida, “Coefficient criterion for four-dimensional Hopf bifurcations: A complete mathematical characterization and applications to economic dynamics”, Chaos, Solitons and Fractals 18 (2003) 525. https://doi.org/10.1016/S0960-0779(02)00647-9. DOI: https://doi.org/10.1016/S0960-0779(02)00674-4

[37] D. Elumoye, “Tinubu: Nigerian workers deserve improved welfare, better wages”, Arisenews (2024). [Online]. https://www.arise.tv/tinubu-nigerian-workers-deserve-improved-welfare-better-wages/.

[38] J. O. Odeh, B. C. Agbata, K. A. Tijani & C. E. Madubueze, “Optimal control strategies for the transmission dynamics of Zika virus: With the aid of Wolbachia-infected mosquitoes”, Numerical and Computational Methods in Sciences and Engineering 5 (2024) 1. https://doi.org/10.18576/ncmse/050101.

[39] K. A. Tijani, C. E. Madubueze & R. I. Gweryina, “Modelling typhoid fever transmission with treatment relapse response: Optimal control and cost-effectiveness analysis”, Mathematical Models and Computer Simulation 16 (2024) 457. https://doi.org/10.1134/S2070048224700169. DOI: https://doi.org/10.1134/S2070048224700169

[40] I. Ampong, “Assessing the effect of employee welfare and compensation on organizational performance: A case of Sahel Sahara Bank Ghana limited”, Cogent Business & Management 11 (2024) 2315690. https://doi.org/10.1080/23311975.2024.2315690. DOI: https://doi.org/10.1080/23311975.2024.2315690

[41] E. T. Ufoaroh, A. Udemezue & O. A. Anyadufu, “Employee welfare package and its impact on productivity (A case study of Roesons Industries Ltd Enugu-Ukwu, Anambra State, Nigeria)”, Asian Journal of Economics, Business and Accounting 11 (2019) 1. https://doi.org/10.9734/ajeba/2019/v11i130119. DOI: https://doi.org/10.9734/ajeba/2019/v11i130119

[42] E. M. Muema, Effects of employee welfare programmes on organizational performance Makueni County, Kenya, Master’s thesis, Kenyatta University, Kenya, 2022. https://ir-library.ku.ac.ke/server/api/core/bitstreams/53298e3f-2972-4662-81cc-57041e5e4bd0/content.

[43] O. Olanipekun, The effect of adequate staff welfare package on worker productivity, Project Report, Nigerian Institute of Management (Chartered), 2023. [Online]. https://www.coursehero.com/file/217056188/OLAWOYIN-OLANIPEKUN-THE-EFFECT-OF-ADEQUATE-STAFF-WELFARE-PACKAGE-ON-WORKER-PRODUCTIVITYdocx/.

[44] M. K. Nelson, A. M. A. Wasike, N. Edward & M. Harun, “Mathematical modelling of cholera transmission dynamics incorporating vaccination”, Asian Research Journal of Mathematics 21 (2025) 182. https://doi.org/10.9734/arjom/2025/v21i4921. DOI: https://doi.org/10.9734/arjom/2025/v21i4921

Published

2025-11-01

How to Cite

Mathematical modelling of the dynamical system of military population, focusing on the impact of welfare. (2025). Journal of the Nigerian Society of Physical Sciences, 7(4), 2844. https://doi.org/10.46481/jnsps.2025.2844

Issue

Section

Mathematics & Statistics

How to Cite

Mathematical modelling of the dynamical system of military population, focusing on the impact of welfare. (2025). Journal of the Nigerian Society of Physical Sciences, 7(4), 2844. https://doi.org/10.46481/jnsps.2025.2844