“Klarna CEO Sebastian Siemiatkowski has defended his company’s business model and the controversial “buy now, pay later” industry. Klarna lets consumers buy things that they might not necessarily be able to afford at that moment in time. Its 150 million customers pay a relatively small amount up front and pay back the rest later.   In an interview with CNBC’s “Squawk Box Europe” on Friday, the Swedish entrepreneur said BNPL is “superior” to the credit card model, claiming that the average Klarna user has an outstanding balance of $50, whereas the average credit card user has an outstanding balance of $5,000.”