Until then it will still be necessary when forecasting the technology and organisation of seaborne trade in general cargoes to distinguish between trade between the highly industrialised countries on the one hand, and between these countries and the less highly developed countries on the other.
Kude kube ngoko ke isezakuba yimfuneko xa ngenxa yangaphambili ulwazi ngobugcisa jikelele ukwahlula kunye nokulinganisela kokutyalwa kwempahla kwimithwalo yonke jikelele ukwahlula phakathi kothengiso kunye namazwe atyebileyo kwelinye icala, kunye naphakathi kwala mazwe kunye namazwe aphakathi ngokutyeba kwesinye.