“…(iii) One of the implications of military expenditure is that it could crowd out social spending (that is, scarce productive resources are being diverted to non-productive pursuits (classical school)), and CO 2 emissions lead to environmental degradation (see, for example, Saba 2021 ; Saba and Ngepah 2020a , b , 2022 , among others). High military expenditure, according to the Keynesian school, boosts aggregate demand, improves infrastructure, boosts productivity, and lowers unemployment (see, for example, Saba 2020a , 2021a ; Saba and Ngepah 2020a , b , 2022 , among others). However, it is not only theoretical examinations that have failed to concur on the defence spending-growth nexus for SA; other empirical studies focusing on other countries/regions have also produced inconsistent results ( inter alia : Mosikari and Matlwa 2014 ; Saba and Ngepah 2019c ; Aye et al 2014 ; Phiri 2019 ).…”