Big Hit Entertainment, in 2013, was not the kind of company that produced globally dominant music acts. It had been founded in 2005 by a 33-year-old former JYP Entertainment songwriter named Bang Si-hyuk — generally known in the Korean music industry by the nickname “Bang PD” — who had spent the previous decade working as [...] The post A seven-member South Korean boy band named BTS has contributed close to $50 billion to South Korea’s economy across the first decade of its existence, a share of