IMAGINE a job where excellence does nothing to improve your pay or chances of promotion, and failure carries little risk of being sacked. Your pay is low for your qualifications—but at least the holidays are long, and the pension is gold-plated.
Teaching ought to be a profession for hard-working altruists who want to improve children’s life prospects. But all too often school systems seem designed to attract mediocre timeservers. Many Mexican teachers have inherited their jobs; Brazilian ones earn less than other public servants, and retire much earlier. Each school-day a quarter of Indian teachers play truant. In New York it is so hard to sack teachers that even those accused of theft or assault may be parked away from pupils, doing “administrative tasks” on full pay, sometimes for years.