💸Principles of Economics Unit 15 – Poverty and Economic Inequality

Poverty and economic inequality are complex issues that affect societies worldwide. These concepts encompass various measures, causes, and impacts, ranging from absolute and relative poverty to income and wealth disparities. Understanding poverty and inequality requires examining economic theories, measurement tools, and policy approaches. From classical economics to capability approaches, these frameworks offer insights into the roots and potential solutions to these persistent challenges.

Key Concepts and Definitions

  • Poverty refers to a state of lacking sufficient financial resources to meet basic needs (food, shelter, healthcare)
  • Absolute poverty measures poverty in relation to the amount of money necessary to meet basic needs
    • Established poverty line varies across countries
  • Relative poverty measures poverty in relation to the economic status of other members of society
    • Usually defined as a household income below a given proportion of average national income
  • Income inequality refers to the uneven distribution of income across participants in an economy
  • Wealth inequality measures the uneven distribution of assets (real estate, stocks, bonds) across a population
  • Gini coefficient is a measure of inequality represented by a number between 0 and 1
    • 0 corresponds to perfect equality and 1 corresponds to perfect inequality
  • Lorenz curve is a graphical representation of income or wealth inequality within a population
    • Cumulative percentage of income earned on the vertical axis and the cumulative percentage of people from lowest to highest incomes on the horizontal axis

Causes of Poverty and Inequality

  • Lack of access to education and skills training limits opportunities for higher-paying jobs
  • Discrimination based on race, gender, ethnicity, or religion can lead to unequal access to resources and opportunities
  • Macroeconomic factors (recession, inflation, unemployment) can disproportionately impact low-income households
  • Generational poverty can perpetuate cycles of poverty as children born into low-income families face barriers to upward mobility
  • Globalization has led to outsourcing of jobs to lower-wage countries, reducing opportunities for low-skilled workers in developed economies
  • Technological advancements can lead to job displacement, particularly in industries relying on manual labor
  • Regressive tax systems place a higher burden on low-income earners compared to high-income earners
  • Inadequate social safety nets fail to provide sufficient support for individuals and families experiencing poverty

Measuring Poverty and Inequality

  • Poverty headcount ratio measures the proportion of a population living below the poverty line
  • Poverty gap index measures the intensity of poverty by considering how far, on average, the poor are from the poverty line
  • Income quintile ratio compares the average income received by the richest 20% to the poorest 20% of the population
  • Palma ratio compares the income share of the top 10% to the bottom 40% of the population
  • Theil index measures inequality based on the entropy of the income distribution
    • Ranges from 0 to infinity, with 0 representing perfect equality and higher values representing greater inequality
  • Atkinson index incorporates a sensitivity parameter to measure inequality with varying levels of emphasis on the lower end of the income distribution
  • Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators
    • Used to rank countries into four tiers of human development

Economic Theories on Poverty

  • Classical economics argues that poverty is a result of individual choices and market forces
    • Suggests that competitive markets and economic growth will reduce poverty over time
  • Keynesian economics emphasizes the role of aggregate demand in determining output and employment
    • Advocates for government intervention to stimulate demand during economic downturns
  • Neoclassical economics focuses on the role of human capital in determining productivity and wages
    • Suggests that investments in education and skills training can reduce poverty
  • Marxian economics views poverty as a result of the exploitation of labor by the owners of capital
    • Argues that the capitalist system perpetuates inequality and poverty
  • Capability approach, developed by Amartya Sen, emphasizes the role of individual capabilities in determining well-being
    • Suggests that poverty should be measured not just by income, but by access to opportunities and freedoms

Social and Economic Impacts

  • Poverty can lead to poor health outcomes due to limited access to healthcare, nutrition, and sanitation
  • Children from low-income families are more likely to experience developmental delays and lower educational attainment
  • Poverty can contribute to social exclusion and marginalization, leading to reduced social cohesion
  • High levels of inequality can lead to social unrest and political instability
  • Poverty and inequality can hinder economic growth by reducing aggregate demand and limiting human capital development
  • Crime rates tend to be higher in areas with high levels of poverty and inequality
  • Poverty can lead to environmental degradation as individuals may resort to unsustainable practices to meet basic needs
  • Inequality can lead to reduced trust in institutions and a weakening of democratic processes

Policy Approaches and Interventions

  • Progressive taxation systems aim to redistribute income from high-income earners to low-income earners
  • Minimum wage laws establish a floor for wages to ensure a basic standard of living for workers
  • Social welfare programs (unemployment insurance, food stamps, housing assistance) provide support for low-income individuals and families
  • Conditional cash transfer programs provide financial assistance to low-income households in exchange for meeting certain requirements (school attendance, health check-ups)
  • Microfinance initiatives provide small loans and financial services to low-income individuals to promote entrepreneurship and self-employment
  • Investments in education and skills training can improve human capital and increase access to higher-paying jobs
  • Asset-building policies (Individual Development Accounts, Child Savings Accounts) encourage savings and wealth accumulation among low-income households
  • Community development initiatives aim to revitalize low-income neighborhoods through investments in infrastructure, housing, and local businesses

Global Perspectives

  • The United Nations Sustainable Development Goals (SDGs) include targets for reducing poverty and inequality worldwide
  • The World Bank defines extreme poverty as living on less than $1.90 per day (adjusted for purchasing power parity)
  • Developing countries tend to have higher levels of poverty and inequality compared to developed countries
  • Globalization has contributed to rising inequality within and between countries
    • Benefits of economic growth have been distributed unevenly
  • International aid and development assistance aim to reduce poverty in developing countries
    • Effectiveness of aid is debated, with concerns about dependency and corruption
  • Fair trade initiatives aim to improve the livelihoods of producers in developing countries by ensuring fair prices and working conditions
  • The COVID-19 pandemic has exacerbated poverty and inequality worldwide
    • Low-income individuals are more likely to experience job losses and reduced access to healthcare

Debates and Controversies

  • There is debate over the effectiveness of market-based solutions versus government interventions in reducing poverty
  • The role of globalization in contributing to or alleviating poverty is contested
    • Some argue that it has lifted millions out of poverty, while others argue it has exacerbated inequality
  • The measurement of poverty is subject to debate, with disagreements over the appropriate poverty line and the use of income versus multidimensional measures
  • There is debate over the extent to which inequality is a problem in itself, separate from poverty
    • Some argue that inequality is necessary for incentivizing innovation and productivity
  • The effectiveness of foreign aid in reducing poverty is disputed, with concerns about aid dependency and corruption
  • There is debate over the role of individual responsibility versus structural factors in perpetuating poverty
    • Some emphasize the importance of personal choices, while others focus on systemic barriers
  • The potential trade-offs between economic growth and inequality reduction are debated
    • Some argue that policies aimed at reducing inequality may hinder economic growth


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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.