A negative number isn't always a broken one - what India's GDP deflators are actually telling you
The debate follows public concerns raised by former Finance Secretary S.C. Garg and former Chief Statistician Pronab Sen over whether India's statistical system can reliably support double deflation, particularly given thin producer-price data for services and the unorganised sector. NITI Aayog's Lahiri pushed back on the criticism this week and MoSPI has also shifted its input measure for double deflation from CPI/WPI…