The only alternative options have been accredited, private schools with more freedom of curricula (including textbook choice; public schools are limited to government-approved textbooks), teaching methods and hiring guidelines. Nearly all private schools require a competitive entrance examination and charge tuition, with few scholarships available. Interest in alternative education was sparked during the 1980s by student violence and bullying, school refusal, social anxiety disorder and, in the worst cases, suicide; the desire to enable young people to keep up with a globalized economy is an additional impetus.