One nation, one tax

GIVEN how few voters enjoy paying them, politicians rarely trumpet the advent of new taxes. But the passage of a new goods-and-services tax (GST) in India’s upper house on August 3rd is a deserved exception. Well over a decade in the making, the new value-added tax promises to subsume India’s miasma of local and national levies into a single payment, thus unifying the country’s 29 states and 1.3 billion people into a common market for the first time. The government of Narendra Modi, never averse to over-hyping what turn out to be modest policy tweaks, has enacted its most important reform to date.