Nowadays no meeting on India seems complete without a reference to the coming "demographic dividend".
What really is this demographic dividend?
The basic idea is straightforward enough.
In the year 2004 India had a population of 1,080 million, of whom 672 million people were in the age-group 15 to 64 years.
This is usually treated as the "working age population".
Since outside of this age group very few people work, it is reasonable to think of the remainder, that is, 408 million people, as the "dependent population".
A nation's "dependency ratio" is the ratio of the dependent population to the working-age population. In the case of India this turns out to be 0.6.
On this score India does not look too different from many other developing countries. Bangladesh's dependency ratio is 0.7, Pakistan's 0.8, Brazil's 0.5.
What is different about India is the prediction that it will see a sharp decline in this ratio over the next 30 years or so. This is what constitutes the demographic dividend for India.
India's fertility rate - that is, the average number of children a woman expects to have in her life time - used to be 3.8 in 1990.
This has fallen to 2.9 and is expected to fall further. Since women had high fertility earlier we now have a sizeable number of people in the age-group 0-15 years.
Benefits of demography
But since fertility is falling, some 10 or 15 years down the road, this bulge of young people would have moved into the working-age category. And, since, at that time, the relative number of children will be small (thanks to the lowered fertility), India's dependency ratio would be lower.
It is expected that, in 2020, the average age of an Indian will be 29 years, compared to 37 for China and 48 for Japan; and, by 2030, India's dependency ratio should be just over 0.4.
This can confer many benefits.
First is the direct benefit of there being a rise in the relative number of bread-winners.
Moreover, with fewer children being born, more women will now join the work force; so this can give a further fillip to the bread-winner ratio.
A more indirect but vital benefit for the economy is the effect this can have on savings.
More women can work with fewer children being born |
Hence, a decline in the nation's dependency ratio is usually associated with a rise in the average savings rate.
India's savings rate as a percentage of GDP has been rising since 2003. It now stands at 33% which is comparable to the Asian super-performers, all of whom save at above 30%, with China saving at an astonishing near 40% rate.
This savings growth is driven by improvements in the government's fiscal health and a sharp rise in corporate savings.
But even if these factors disappear, the decline in the dependency ratio should enable India to hold its savings and investment rate above the 30% mark for the next 25 years.
Striking example
This theory of demographic advantage has been challenged by some as just that - theory.
One way of evaluating this in reality is to look at the actual experience of other nations.
The most striking example of economic growth being spurred by demography is the case of Ireland.
Ireland's legalisation of contraception in 1979 caused a decline in the birth rate, from 22 (per 1000 population) in 1980 to 13 in 1994. This caused a rapid decline in the dependency ratio.
The phenomenal economic boom in Ireland thereafter, earning it the sobriquet "Celtic Tiger", is very likely founded in this fertility decline. (I am disinclined to concede ground to the competing view that it was caused by Pope John Paul II's visit to Ireland in 1979).
India's fertility rate has fallen |
But even if this happened in some places, will it happen in India?
My expectation is that India will get benefit from higher savings and investment rates and this will continue to fire India's high growth rate.
Beyond that much will depend on how the nation performs on primary and secondary education (to make sure that the larger working-age population conferred by the demographic dividend are an educated lot) and the manufacturing sector (which is needed to create job opportunities for the larger labour force).
What is important to remember is that the demographic dividend is a population bulge in the working-age category.
Like a kill in a python's stomach it will eventually move up, causing a rise in the old-age dependency ratio some three to four decades from now. That is, every demographic dividend comes with an accompanying "demographic echo".
It is in the nation's interest to reap as much as possible from the dividend so that it is robust enough not stymied later by the echo.
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