Korea has a very low fertility rate of 1.17 babies per 2 people, and by 2050 over 60% of the population will be elderly as the country ages rapidly. This aging population will place a huge strain on the pension system, with projected costs increasing from 400 trillion won in 2013 to 2561 trillion won by 2050. Other countries face similar challenges, with Japan at 1.3 fertility rate and 25% elderly population, while unemployment in Spain is high at 50% despite a fertility rate of 1.38. Increasing jobs and implementing welfare policies can help boost birth rates and support economies.