Population
| Impact on Migration |
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| HICs attract immigrants seeking higher wages. LICs see emigration for work. |
| HICs often have better healthcare, attracting medical tourism or elderly migrants. |
| Educated individuals are more mobile and likely to migrate for skilled jobs. |
| Religious persecution can force emigration. |
| Visa policies, border controls, and refugee laws strictly regulate migration flows. |
Causes of Gender Imbalance:
- Son Preference: In some cultures (e.g., parts of Asia), a preference for male heirs leads to sex-selective abortion or neglect of female infants, resulting in a skewed sex ratio.
- Labor Migration: In countries with many male workers migrating abroad for construction or oil jobs (e.g., Gulf States), the resident population may have a surplus of males. Conversely, if women migrate for care work, the origin country may have a 'missing women' phenomenon.
Economic Effects of Gender Distribution:
- Surplus of Working-Age Men: Can lead to higher crime rates or social instability if unemployment is high. However, it can also provide a cheap labor force for construction.
- Female Labor Force Participation: Countries with more balanced gender ratios and high female employment tend to have higher GDP growth due to increased human capital utilization.
The Concept Explained:
- If a population is too small, there may be insufficient labor to exploit resources efficiently, leading to low output per person.
- If a population is too large, resources become scarce, infrastructure becomes overcrowded, and the marginal cost of supporting additional people exceeds the marginal benefit. This leads to a decline in the standard of living.
- The optimum point is where the average product of labor (or GDP per capita) is at its peak.
| Potential Costs |
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Question: A country has a birth rate of 20 per 1,000, a death rate of 8 per 1,000, and net migration of +5 per 1,000. What is the annual population growth rate?
Solution:
- Natural Increase = Birth Rate - Death Rate = 20 - 8 = 12 per 1,000.
- Total Growth = Natural Increase + Net Migration = 12 + 5 = 17 per 1,000.
- Convert to percentage: (17 / 1000) \times 100 = 1.7%.
The Correction: Death rate is a rate (per 1,000), not a total number. A country with a large population can have a very low death rate if it has advanced healthcare and high living standards (e.g., Japan). Conversely, a small country with poor healthcare may have a high death rate. Focus on the quality of life and healthcare access, not just the headcount.
The Correction: You must compare Net Migration to Natural Change (Births - Deaths). If a country has high immigration but an even higher death rate (or very low birth rate), the total population could still shrink. Always calculate: Population\ Change = (Births - Deaths) + (Immigration - Emigration).
Why examiners accept this: Examiners look for balanced analysis. Simply listing pros is insufficient. You must acknowledge the conditions under which benefits occur.
Correct Usage Example: 'While a larger population provides a bigger labor force, this is only beneficial if there are sufficient jobs available. If unemployment is high, population growth exacerbates poverty and social instability.'
Key Phrase to Include: 'This depends on the stage of economic development...' or 'The impact is contingent on government policy...'
Why examiners accept this: The definition must link population size to standard of living or per capita income, not just 'maximum output'. Maximum total GDP is achieved with a huge population, but that doesn't mean it's the optimum for individual welfare.
Correct Usage Example: 'Optimum population is the level where GDP per capita is maximized. Beyond this point, diminishing returns to labor set in, reducing the average standard of living.'
- In LICs, children are often seen as economic assets who can work and support parents in old age, whereas in HICs, child labor is banned and education is costly. (2 marks)
- LICs may have lower levels of female education and access to contraception, leading to less control over family size compared to HICs where women have more career opportunities. (2 marks)
- Higher dependency ratio means fewer workers supporting more retirees, increasing tax burdens.
- Increased government spending on healthcare and pensions may lead to budget deficits or reduced spending on education/infrastructure.
Arguments against burden (Benefits):
- Older workers often have more experience and skills, potentially increasing productivity.
- An ageing population may stimulate growth in the 'silver economy' (healthcare, leisure services).
- If life expectancy is high, it reflects successful healthcare and higher living standards.
Conclusion: It is not always a burden. If the government encourages later retirement or immigration of young workers, the economic impact can be mitigated or even positive.