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GDP Growth Debate Shows Why One Number Misleads

GDP Growth Debate Shows Why One Number Misleads
Why everyone is wrong about GDP growth. The correct number is obviously 10% · financialexpress.com

The government reported that the economy grew 7.8% in the first quarter of the fiscal year.

Some critics believe the number is much lower after looking at the data differently.

The author jokingly makes another estimate that reaches almost 10%.

He does this by adding together past GDP revisions, night-time light data and growth in poorer states.

The joke shows how easy it is to create different numbers when methods are mixed.

GDP measures economic activity, but it does not measure whether people are happy or struggling.

It also cannot fully show problems such as poor roads, expensive food or shortages of teachers and toilets.

GDP is still useful for seeing the economy’s general direction.

The author argues that people should question GDP carefully instead of treating it as either perfect or fake.

Key facts

Official real GDP growth
7.8% in the first quarter of the fiscal year
Subhash Chandra Garg’s calculation
Nominal GDP growth of 2.6% and real growth of zero
Historical GDP revisions
Growth rates were revised upward 28 out of 44 times, with an average revision of 1.05 percentage points
Q1 revision pattern
Q1 growth was revised upward in 7 of 11 years from FY15 to FY25; the average upward revision from FY22 to FY25 was 1.06 percentage points
Night-time luminosity
The article cites an RBI study finding annual luminosity growth of 7.1% from 1992 to 2017, 0.6 percentage points above official real GDP growth
Bihar luminosity
Light intensity increased 220% between 2012 and 2019
International examples
The article says rebasing lifted Ghana’s and Nigeria’s real GDP by roughly 60% and 89%, while Ireland’s real GDP rose 26% in 2015

Sources

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