bignewsnetwork (29.12.2014) Africa's population is growing and the United Nations estimates 40 percent of the world's population will live in Africa by 2050. African economies are also growing, along with a growth in the work force. But in some countries, the social and economic forces collide on workplace issues like parental leave. While some countries are moving to extend leave, others are having a hard time enforcing the laws they already have.