Chapter 03 · Economics

Economic Growth and Development

Growth vs Development · HDI, PQLI, NEW, PPP, GNH · Measurement Indices — SSC / Railway / UPSC / BPSC

Economic Growth
  • Sustained increase in real output or real income over time
  • Related to quantitative change
  • Useful for judging average real income/material living standards: Real per capita income
Per Capita Income = National Income ÷ Total Population
Economic Development
  • Efficient utilization of all factors of production
  • With continuous and long-term growth in national income and per capita income, there is improvement in people's standard of living
  • Related to both quantitative and qualitative change
  • Influenced by human capital, institutions, technology, capital formation, infrastructure, resources and market access
Prof. Amartya Sen's DefinitionEmpowerment and expansion of capabilities
Amartya Sen — Nobel Prize1998

Environmental Kuznets Curve: hypothesized inverted-U relationship between some forms of environmental degradation and income per capita.

⚡ QUICK RECALL
Growth = quantitative only; Development = quantitative + qualitative — the single biggest exam distinction in this topic.
Measurement of Economic Development
  • Human Development Index (HDI)
  • Basic Needs strategy — ILO World Employment Programme, especially the 1976 World Employment Conference
  • Physical Quality of Life Index (PQLI)
  • Net Economic Welfare (NEW)
  • Purchasing Power Parity Method (PPP)
Human Development Index (HDI)
Propounded1990, by Mahbub ul Haq, Amartya Sen, and others
Related ToUnited Nations Development Programme (UNDP)
Published Since1990, by UNDP
IndicatorsLife expectancy at birth; expected and mean years of schooling; GNI per capita (PPP-adjusted)
Score ScaleMax: 1, Min: 0
130India's rank: HDR 2025 (2023 HDI data), out of 193

Iceland topped the HDI Report (2025), while South Sudan ranked last.

⚠ EXAM TRAP
Don't confuse HDI's score scale (0 to 1) with PQLI's scale (0 to 100) — a very common mix-up in options.
Physical Quality of Life Index (PQLI)
Propounded ByMorris D. Morris
Score ScaleMax: 100, Min: 0

Indicators

  • Life expectancy at age one
  • Infant Mortality Rate
  • Basic Literacy Rate
⚡ QUICK RECALL
First Indian state to release a sub-national Human Development Report: Madhya Pradesh (1995).
Net Economic Welfare (NEW)
  • Modified form of MEW (Measure of Economic Welfare)
  • Term popularized by Paul Samuelson, drawing on MEW developed by William Nordhaus and James Tobin
ISEW (Index of Sustainable Economic Well-being)First issued by Daly and Cobb (1989)
Purchasing Power Parity Method (PPP)
  • Global comparable PPPs: International Comparison Program (ICP), coordinated by the World Bank under the UN Statistical Commission
  • Used for comparative analysis of standard of living across countries
Gross National Happiness (GNH)
Coined By4th King of Bhutan, Jigme Singye Wangchuck
Decade1970s
33Indicators
9Domains

The concept implies that sustainable development should take a holistic approach towards national progress, giving equal importance to non-economic aspects of well-being and happiness.

⚡ QUICK RECALL
GNH = Bhutan's original contribution to development economics — 33 indicators across 9 domains, prioritizing happiness over pure GDP.
Economic Development vs Economic Growth
Economic DevelopmentEconomic Growth
Quantitative + qualitative improvementsQuantitative Concept
Along with increase in production, technological and institutional changes are also importantMay be driven by capital, labour, productivity and innovation; need not be perfectly steady
Requires structural transformationStructural change can accompany growth; growth alone does not guarantee broader development
Driven by institutions, capabilities, technological change, investment, incentives, public policy and structural transformationCan arise from private investment, innovation, productivity, labour-force changes and public policy; not only planning
Involves social, cultural, economic, qualitative, and quantitative changesRelated only to the increase in production
⚠ EXAM TRAP
Growth is narrower and mainly quantitative; development is broader and includes qualitative improvements in capabilities, institutions and structure. Growth can occur without broad development.
Quick Reference Summary
TopicKey Fact
Economic GrowthSustained increase in real output or real income; primarily quantitative
Per Capita Income FormulaNational Income ÷ Total Population
Measure of Average Real IncomeReal Per Capita Income
Economic DevelopmentQualitative + Quantitative change; efficient utilization of production factors
Amartya Sen on DevelopmentEmpowerment and expansion of capabilities; Nobel Prize 1998
Environment Kuznets CurveHypothesized inverted-U between some environmental degradation indicators and income per capita
HDI Propounded1990 by Mahbub ul Haq, Amartya Sen; Published by UNDP
HDI IndicatorsLife expectancy at birth; expected/mean years of schooling; GNI per capita (PPP-adjusted)
HDI Score RangeMax 1, Min 0
India's HDI Rank (2025)130 out of 193 countries and territories; HDR 2025 uses 2023 HDI data
HDI Topper (2025)Iceland
HDI Bottom (2025)South Sudan
First State to Publish HDI in IndiaMadhya Pradesh (1995)
PQLI Propounded byMorris D. Morris; Scale: Max 100, Min 0
PQLI IndicatorsLife expectancy at age one, Infant Mortality Rate, Basic Literacy Rate
NEWNEW term popularized by Samuelson; draws on MEW of Nordhaus and Tobin
ISEWIndex of Sustainable Economic Well-being; first issued by Daly and Cobb (1989)
PPPICP coordinated by World Bank produces global PPPs for comparisons controlling for price differences
GNHCoined by 4th King of Bhutan, Jigme Singye Wangchuck, 1970s; 33 indicators, 9 domains
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