Business Standard

Quality and credibility problems of govt data

The problems with the NSSO survey, now a part of the CSO, is that it has failed to keep pace with the changing times

Quality and credibility problems of  govt data
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Soumya Kanti Ghosh New Delhi
The leaked Consumer Expenditure Survey (CES) has once again highlighted the importance of statistical data. In this context, I would like to highlight the perennial issues associated with the consumer price index (CPI) data that is used as a policy input by the Reserve Bank of India (RBI) for inflation targeting. 

In January 2015, the Central Statistics Office (CSO) revised the base year of CPI to 2012 (from 2010=100). The weighting pattern of the revised series was based on the 2011-12 CES of the National Sample Survey Office (NSSO). The weight for food and beverages in CPI was taken as 45.86
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