Core 1 • Section 3

Challenges & Opportunities

How population structures create challenges and opportunities—and how governments respond through policy, equality, protection and investment.

Syllabus link

Population possibilities and power over the decision-making process

01
IB syllabus bullet

Global population challenges: ageing societies

Global and regional trends in family size, sex ratios and ageing.

An ageing population is a shift in structure, not simply “more old people”. Falling fertility and rising life expectancy increase the older share while the working-age share may shrink.

ExploreWorld median age through time
CausesLow fertility
Longer lives
ChallengesDependency
Labour shortages
OpportunitiesSilver economy
Automation
02
Detailed example

Japan: a super-ageing case study

Causes, consequences and possible responses to population ageing.

Very low fertility, long life expectancy and population decline reshape Japan’s workforce and dependency. Build a cause–consequence–response chain.

WatchJapan’s population decline and ageing challenge
InteractiveJapan’s age structure through time

Case-study frame

  • What created Japan’s age structure?
  • How does ageing affect labour and dependency?
  • Which responses alter fertility, labour supply or productivity?
  • Which response is most sustainable?
03
IB syllabus bullet

Managing population change: China

Anti-natalist policy and its intended and unintended consequences.

Evaluate rather than merely describe: Did the One Child Policy change fertility? What were its unintended consequences? How have later policy changes responded?

WatchChina’s one-child policy explained
ExploreSex ratio at birth through time
PressureRapid growth
PolicyRestrict fertility
OutcomesLower fertility + impacts
ReversalEncourage births
04
Contrasting policy

Pro-natalist policy: Singapore

Government attempts to influence family size below replacement level.

Singapore’s policy changed direction from limiting growth to encouraging births. Compare financial incentives with the deeper reasons people decide whether to have children.

WatchWhy pro-baby policies struggle
ExploreSingapore fertility trend

Evaluate the policy

  • Cost: how expensive are incentives and services?
  • Reach: who benefits?
  • Behaviour: does it actually change decisions?
  • Time: how long before the structure changes?
05
IB syllabus bullet

Gender equality: Rwanda

How power and opportunity influence education, work, health and reproductive decisions.

Rwanda provides a case study of how policy can change political representation and opportunity—while prompting the question of which inequalities remain.

ExploreUNDP Gender Inequality Index
WatchWomen’s political representation in Rwanda
06
IB syllabus bullet

Human trafficking & population vulnerability

Anti-trafficking policies and unequal power shaping movement and vulnerability.

Trafficking differs from migration and smuggling through exploitation and control. Poverty, insecure status, discrimination and weak protection increase vulnerability.

PreventionReduce vulnerability and demand
ProtectionIdentify and support victims
ProsecutionInvestigate networks
07
IB syllabus bullet

The demographic dividend

How population may become a resource when contemplating possible futures.

A demographic dividend is a potential benefit, not an automatic reward. Falling fertility can increase the working-age share, but opportunity becomes a dividend only with health, education, productive employment and an enabling economy.

WatchThe demographic dividend explained
QuizletChanging Population terminology
1Fertility falls
2Dependency can fall
3Working-age share grows
4Invest in people and jobs
5Possible dividend

The key evaluation

  • What age-structure change creates the opportunity?
  • Which investments create productive human capital?
  • What happens if jobs do not grow fast enough?
  • How might gender equality increase the dividend?