March 9, 2009
It was amusing to watch the economic debate on the TV channels about 2008-09 GDP growth rate. While one economist predicted 2008-09 growth rates to be between 4% and 5%, the other estimates ranged from 6% to 7%+.
The year is about to end and we have hard data for nine months and trends for the two months of the last quarter and yet to see such a wide divergence of view amongst the elite economist and politicians and business persons of India left me wondering does anyone prepares for these debates or is it so complex to project the Indian economic growth rate with 11 months of data?
Let's look at the facts. Table A provide the actual GDP data at constant prices.
Table A (Rs. Lakh Crore) |
| 2005-06 | 2006-07 | 2007-08 | 2008-09 |
Q1 | 606,416 | 664,989 | 725,572 | 783,052 |
Q2 | 598,065 | 658,827 | 719,004 | 773,687 |
Q3 | 695,835 | 761,313 | 829,172 | 873,426 |
Q4 | 715,786 | 785,991 | 855,965 | |
Total | 2,616,102 | 2,871,120 | 3,129,713 | 2,430,165 |
Table B provides the year over year change in the above data
Table B |
| 2005-06 | 2006-07 | 2007-08 | 2008-09 |
Q1 | 9.05% | 9.66% | 9.11% | 7.92% |
Q2 | 8.88% | 10.16% | 9.13% | 7.61% |
Q3 | 9.67% | 9.41% | 8.91% | 5.34% |
Q4 | 10.30% | 9.81% | 8.90% | |
Total | 9.52% | 9.75% | 9.01% | |
Table C provides the quarter over quarter change in the data in Table A
Table C |
| 2005-06 | 2006-07 | 2007-08 | 2008-09 |
Q1 | -6.55% | -7.10% | -7.69% | -8.52% |
Q2 | -1.38% | -0.93% | -0.91% | -1.20% |
Q3 | 16.35% | 15.56% | 15.32% | 12.89% |
Q4 | 2.87% | 3.24% | 3.23% | |
The analysis of these three table leads to the following conclusion
- The third quarter of the year is traditionally the best for growth in absolute number. And in terms of absolute number the actual increase in GDP in rupees is the worst in Q3 FY2008-09 compared to any quarter in last three years on a year-over year basis.
- The actual yearly growth rate of Indian economy has been very close to the third quarter rate in the last three years.
- The trend rate of growth has shown the tendency of slowdown in the last three quarters of FY 2008-09 and the pace towards the downside has accelerated over Q3 FY 2008-09.
- The quarter over quarter changes in the growth rate of GDP have been remarkably stable for the prediction purposes over the last three years
- Thus, if assume that the country repeats, in 2008-09, the best Q4 quarter over quarter growth performance recorded in the last three years (an extremely unlikely event given the trend) the growth rate of GDP in FY2008-09 will not exceed 6.5%.
- The chances of actual growth rate significantly below 6.5% are significantly high.
To conclude it appears that actual growth rate of the Indian economy will be significantly below the official projected target of 7% and likely to be close to the actual recorded in the third quarter. Most of those who appear on TV providing comments on the Indian economy are at best, mathematically challenged and serve no interest of the viewers. It is best to ignore them.