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Implications of Demographic Transition Model by C.P. Blacker in the Recent Context: Focus on India

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What is Demography?

Demography is the statistical study of human populations.

Fertility

Mortality

Migration

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Demographic Transition

Historical shift from high birth rates and high death rates in societies with minimal technology, education (especially of women) and economic development,

to low birth rates and low death rates in societies with advanced technology, education and economic development, as well as the stages between these two scenarios. 

  • American Demographer Warren Thompson in 1929
  • French Demographer  Adolphe Landry in 1934
  • American Demographer Frank W. Notestein in 1945
  •  British Psychiatrist C. P. Blacker in 1947

This concept was put forward by

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Overview of Demographic Transition Model by C.P. Blacker (1947)

High Stationary

Early Expanding

Late Expanding

Low stationary

Declining

Demographic

Trap and Burden

Demographic

Dividend

Demographic

Bonus

Zero Population

Growth

Population

Pyramid

Significance

Birth Rate:

No. of Birth/1000 PeopleDeath Rate:

No. of Death/1000 People

Natural Increase:

Amount of Population increase due to higher birth rate than death rate. If birth rate of a country is 50 and death rate 25, then the Natural Increase is 50-25=25

= 2.5%

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Age—Composition of India’s population (1951–2100)

Source: World Population Prospects (22nd Revision), United Nations 2022. Note: child population, working age population, and old age population are all ratios to total population (in percentage form)

Male

Male

Female

Female

Female

Age-Sex Pyramid: India, 1991-2011

1991

2001

2011

Male

Recent Context of Demographic Transition in India

Patterns, Challenges, and Opportunities

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Stage 1: High Stationary

Birth Rate: High

Death Rate: High

Population Growth: Low and fluctuating

Time Period in India: Pre-1920s

Context: Poor healthcare, frequent famines, epidemics, and limited sanitation kept both birth and death rates high. Life expectancy was low.

Stage 2: Early Expanding

Birth Rate: Remains high

Death Rate: Declines rapidly

Population Growth: Rapid increase

Time Period in India: 1920s–1950s

Context: Introduction of British-era public health measures, some improvement in food supply and sanitation began reducing mortality, especially infant deaths.

Stage 3: Late Expanding

Birth Rate: Starts declining

Death Rate: Continues to decline

Population Growth: Slows down, but still positive

Time Period in India: 1950s–present (in progress)

Context: Introduced family planning, improved education, and better healthcare. Fertility rates began to decline, though unevenly across regions. States like Kerala and Tamil Nadu advanced faster than Bihar and Uttar Pradesh.

Stage 4: Low Stationary

Birth Rate: Low

Death Rate: Low

Population Growth: Stable or slowly increasing

Time Period in India: Emerging in southern and some urbanized parts

Context: Total fertility rate (TFR) in India is close to 2.0 (as of NFHS-5), approaching replacement level. Several states are experiencing near-zero or even negative population growth.

India’s Journey through the Demographic Transition

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Large Working-Age Population: ~67% of India's population (15-64 years) is working-age.

Window of Opportunity: Expected to last until 2040-2050 (NITI Aayog).

Potential Benefits: Increased economic growth, higher savings, innovation.

Challenges: Requires massive investment in education, skill development (e.g., 10M new jobs annually needed), healthcare, and job creation.

Jobless Growth Concern: India's unemployment rate (7.8% in 2023) higher than pre-pandemic levels.

The Demographic Dividend: Opportunity and Imperatives

Aging Population: Proportion of 60+ population projected to reach ~20% by 2050 (from ~10% in 2021).

Policy Focus: Strengthen social security, elderly care, and healthcare infrastructure.

Urbanization: Migration from rural to urban areas (35% urbanized in 2021, projected 40% by 2030).

Sustainable Development: Managing resource strain, environmental impact, and social equity.

Beyond the Dividend: Policy Implications and Future Outlook

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Criticism

  • The model is based on the historical population trends of Western Europe, particularly during the Industrial Revolution.
  • It focuses on birth and death rates. It does not account for migration flows, which significantly affect population dynamics, especially in rapidly urbanizing countries or conflict zones.
  • It does not account for how gender roles, social norms, and inequality impact reproductive behavior, access to healthcare, or child survival.
  • Many Global South countries are transitioning demographically in entirely new socio-political contexts, influenced by technology, environmental stress, and foreign aid—unlike the contexts DTM was based on.
  • Real-world demographics are shaped by complex, multi-dimensional forces, including war, pandemics (like COVID-19), climate change, and more—none of which are considered in the classic model.

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