Core 1.3

Link to Economic Development: Larger family sizes are typically observed in Low-Income Countries (LICs).
Global Average Household Size Trends:
- Declined from 4.9 persons in 1960 to 3.45 in 2023.
- Predicted to reach 2.5 by 2050.
- Largest household size: Senegal, Africa, with an average of 10 family members.
- Countries with families averaging 5-9 members: Pakistan, Nigeria, India.
- Smaller families common in Europe (2.3 persons) and North America (2.6 persons).

Access to Healthcare and Contraception: Reduces unplanned pregnancies, allowing smaller family sizes.
Increase in Women’s Education and Workforce Participation: Leads to family planning and later childbirth.
Increased Child Life Expectancy: Reduces the need to have additional children.
Urbanization: Leads to lack of space, discouraging larger family sizes.
Cultural and Societal Norms: Family size influenced by religious beliefs and socio-economic factors, viewing children as economic assets.
Government Policies: Can either restrict or promote family size.

Definition: The sex ratio, or gender ratio, represents the number of males to females in a population; it is dynamic and influenced by various factors.
Key Influencing Factors:
- Biological Factors: Generally, more males are born, but they have higher mortality rates.
- Cultural Preferences: Societies may prefer male offspring, leading to practices like sex-selective abortions.
- Technological Factors: Advances in fertility treatments and gender selection techniques.
- Economic Factors: Traditionally male lineage can influence family preference for male children; dowries may impose financial burdens.

As of 2021, women represented 49% of the global population.
Countries like China and India exhibit male dominance in their populations.
Middle Eastern Trends: Countries like Oman (3:1) and UAE (4:1) have higher male populations, attributed to male labor migration.
Mexico has a predominance of females at 51.08% due to male migration.

Unbalanced sex ratios can lead to:
- Declining Birth Rates: Societies unable to maintain a birth rate exceeding death rate.
- Economic Impacts: Impact GDP and labor market; fewer workers can lead to slower economic growth.
- Social Issues: Affect crime rates and marital stability.
Age and Sex Ratio Interconnections: At birth, more males are born, but by age 50+, women typically outnumber men.
- Example: In Armenia, the sex ratio is heavily skewed at 82 males per 100 females, although newborn ratios show a higher male birth rate of 110 boys for every 100 girls.

Definition: Also known as a greying population, refers to the increasing proportion of older individuals within a society.
Trends:
- By 2020, aged 60+ surpassed children under 5.
- By 2022, nearly 10% (771 million) of the global population was aged 65+.
- By 2050, this figure is projected to rise to 22%.
Regional Examples:
- Japan: Around 30% of the population aged 60+.
- Italy: 24%.
- Qatar, Uganda, and Afghanistan: Only 2% of their population is aged 65+.

Declining Mortality and Fertility Rates: Trends observed globally over the past 50 years.
Short-term Effects of Immigration: Younger immigrants might mitigate the effects temporarily, but they also age over time, impacting family sizes as they integrate into new cultures.

Cost Implications: Increased costs for healthcare, pensions, and social services.
Declining public services: Schools and recreational facilities may decrease in use leading to closures.
Dependency Ratio Increases: A smaller working population leads to financial strain on support systems for the elderly.
Economic Opportunities: While challenges exist, there are opportunities such as lower crime rates and potential market growth targeting older populations (i.e., 'grey economy').

Demographics: >10% of Japanese are now aged 80+. Japan has the highest proportion of centenarians worldwide.
Government Response to Ageing Population:
1. Angel Plan: Initiative aimed to provide support for raising children.
2. Paid Parental Leave Programs: Considering long leave options (up to 24 months).
3. Child and Educational Support: Introduction of free preschool education and increased financial support for families.
4. Immigration Policy Adjustments: Encouraging some skilled foreign labor, though historically restrictive.
5. Age-Free Society Initiative: Looking to employ older individuals and extend retirement age based on ability rather than just age.

Definition: Pro-natalist policies aim to increase birth rates, especially in countries facing declining populations.
Historical Context: Implemented in the 1936 to encourage larger families, especially post-war.
Current Context: Generous payouts for families with more children, but policies have sometimes backfired, leading to social pressures.

Definition: Aimed to decrease population pressure and improve overall quality of life by limiting births.
Impactful History:
- The Great Leap Forward (1958-1961) and subsequent famines highlighted the repercussions of larger family incentives.
- One-child Policy (1979 - 2016): Significant restrictions on family planning leading to long-term demographic issues including gender imbalance and reduced labor force.

Definition: The economic growth potential resulting from shifts in a population's age structure that leads to a larger working-age population compared to dependents.
Benefit Conditions:
- Requires specific investments in health, education, and job creation to be realized.
Countries Benefiting: Asia and Latin America have more successfully leveraged this demographic structure compared to Sub-Saharan Africa.

Demographics: Dramatic shifts from 6.3 births per woman in 1960 to 0.84 in 2022.
Life Expectancy: Increased from 53 years in 1960 to 83 years in 2022.
Policy Impact: Focus on education, workforce skill development leading to significant economic growth and global competitive export dynamics.

ESL ratio shifts improve labor supply and savings.
Higher employment and educational attainment contribute to GDP growth.
Addressing dependency ratios is critical for sustained economic health and growth potential.