By Bradley Jolly A billionaire boss is handing employees the equivalent of £60,000 if they have choose to have a baby. Booyoung Group, a construction firm, says the policy is designed to try to help reverse South Korea’s declining birth rate. It is even backdating payments to those who started a family before the policy came into place. Lee Joong-keun, the founder and chairman of the group, said: “If the current state of low birth rates persists, we will face a national existential crisis such as workforce decline and a lack of defence manpower necessary for national security. The low birth-ra…