Philip Brasor and Masako Tsubuku, reporting for the Guardian:
The bullet train has sucked the country’s workforce into Tokyo, rendering an increasingly huge part of the country little more than a bedroom community for the capital. One reason for this is a quirk of Japan’s famously paternalistic corporations: namely, employers pay their workers’ commuting costs. Tax authorities don’t consider it income if it’s less than ¥100,000 a month – so Shinkansen commutes of up to two hours don’t sound so bad.