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'Animated discussions' on precision of statistical methods: RBI Governor Shaktikanta Das

In a recent paper which came under heavy criticism from the Economic Advisory Council to the Prime Minister, former Chief Economic Adviser Arvind Subramanian had used 17 high-frequency indicators that correlate with the GDP to suggest that India significantly over-estimated its GDP figures from 2011-12 onwards.

IANS Reported by: IANS Mumbai Published on: June 28, 2019 21:51 IST
RBI Governor Shaktikanta Das
Image Source : PTI

RBI Governor Shaktikanta Das

Reserve Bank of India Governor Shaktikanta Das on Friday said that there have been "animated discussions" on the precision of statistical methods in recent times.

"The doctrine - even tradition - of statistical significance in scientific research has come under some cloud for its veracity and the journal American Statistician published a special edition on this issue earlier this year. Critics allege that these tests are susceptible to manipulation in order to make desired results significant, and undesired results non-significant," Das said at the Statistics Day Conference here. 

In a recent paper which came under heavy criticism from the Economic Advisory Council to the Prime Minister, former Chief Economic Adviser Arvind Subramanian had used 17 high-frequency indicators that correlate with the GDP to suggest that India significantly over-estimated its GDP figures from 2011-12 onwards.

Das on another occasion said that some important results may be discarded at the conception level itself just because they are highly unlikely.

"Similarly, an opportunity to 'cherry-pick' variables is available. In other words, correlations can be conveniently extended to establish spurious causality," Das said.

The Economic Advisory Council to the Prime Minister had earlier in a "point-to-point" rebuttal to Subramanian's paper on over-estimation had alleged that the author had "cherry-picked" high-frequency indicators to conclude that India over-estimated its GDP figures.

Also Read: Government, RBI closely monitoring rupee exchange rate: Sitharaman

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