Chapter 20
AI, ECONOMIC AND DEMOGRAPHIC INEQUALITY: Is There a Connection?
by: josavere
In the contemporary world, when we talk about inequality, we often think of wealth distribution, unequal access to education, or the contrasts between urban and rural areas. But there is another type of inequality that is less visible, but equally important: demographic inequality , that is, the way in which ages are distributed within a country's population. This article proposes an educational exercise: comparing two types of inequality —economic and demographic—to identify possible relationships between them and reflect on how these variables affect social well-being.
The Gini index is a tool used to measure inequality . It ranges from 0 (perfect equality) to 1 (maximum inequality). There are two ways we can apply it:
Economic Gini: measures how income is distributed in a country. The higher the index, the more concentrated wealth is in a few hands.
Age Gini: Although not an official metric, it can be constructed by estimating how concentrated the population is in certain age ranges. For example, a country with a very young or very old majority could be considered "demographically unequal."
Representative cases: when economics and demographics intersect: let 's see how both indicators behave in representative countries:
What can be observed when comparing these data? Cross-referencing both indicators reveals revealing patterns :
high economic inequality + high age inequality (e.g., South Africa): this indicates multiple social risks, from structural poverty to a lack of opportunities for young people.
Low economic inequality + age balance (e.g., Sweden): this shows societies that are more cohesive and prepared for the future.
Low economic inequality + aging (e.g., Japan): although there is equity, the challenge is to sustain the pension and healthcare systems.
Transition economies (e.g., Brazil or the US): this shows imbalances that can be corrected with well-targeted public policies.
Why is this intersection important?
Analyzing both types of inequality provides a more complete view of each country's reality. It's not enough to know whether a country is rich or poor; it's key to understand who lives there, how old most people are, and how resources are distributed .
A country with many young people but no economic opportunities risks losing an entire generation. One with an aging population but no social support can see its quality of life decline. And a country with a balance in both areas has a more solid foundation for development.
Suggested learning activity : For those who want to experiment with this analysis in class or workshops:
1. Select 10 countries with basic data on income and age.
2. Calculate the economic Gini (available from sources such as the World Bank).
3. Estimate the age Gini by comparing proportions of youth (<15 years), adults (15-64), and seniors (65+).
4. Create a scatter plot of both indicators.
5. Reflect: What type of society does each country project?
Conclusion: Inequality isn't just a matter of money; it's also a matter of the life stage in which people are born and grow up . Understanding this invites us to design more equitable societies, not only in terms of wealth, but also in how we care for and distribute opportunities between generations.Ultimately, a just society is one where everyone has a place: young, old, and rich . And that starts with understanding the data... but also acting on it.
A complete explanatory article , in a clear and didactic tone, designed for readers interested in understanding the relationships between economics, demography and social welfare:
How to cross both Gini?
Let's imagine a graph where:
On the horizontal axis (X) we locate the economic Gini (income inequality).
On the vertical axis (Y) we locate an estimated age Gini (based on the concentration of certain age groups: young people under 15 years old, adults 15-64, over 65).
With this visualization, we could find correlations between both types of inequality and draw conclusions about the social structure of countries.
Examples of representative countries
What patterns are observed? In countries with high economic inequality and very young populations (such as South Africa or Nigeria), two tensions combine: poverty and a lack of opportunities for entire generations.
In countries with economic equality and balanced demographics (such as Sweden), there is a more solid foundation for collective well-being.
In countries like Japan , economic distribution is relatively equitable, but age inequality is evident: a large proportion of the population is older, which generates challenges in pensions, healthcare, and the workforce.
The United States and Brazil , in demographic transition, show imbalances in both areas and face the challenge of adapting before the gaps become more difficult to close.
Understanding that inequality goes beyond money is key. A country with many young people, but without equitable access to healthcare, education, and employment, risks wasting its demographic dividend . Conversely, an aging country with economic inequality may face social collapse due to a lack of support networks.
Therefore, comparing these two Gini coefficients —economic and demographic—offers a more complete view of the reality of each society.
Educational proposal: activity for the classroom or workshop1. Select 10 countries with available data.2. Research the economic Gini index (sources such as the World Bank).3. Estimate age inequality based on the proportion of young people, adults and the elderly.4. Create a scatter chart with both indicators.5. Analyze patterns and draw conclusions about social sustainability and future challenges.
ConclusionThe exercise of comparing the economic Gini index with an estimate of the age Gini index is not only educational but also profoundly revealing. It invites us to view inequality as a multidimensional phenomenon that spans generations and cannot be resolved with money alone.In times when social and economic decisions are more urgent than ever, understanding a society's demographic structure is as important as knowing its income level . Because only in this way can we build more just, balanced, and future-ready nations.
Objective: To observe whether there is any relationship between how wealth is distributed in a country and how the ages of its population are distributed.
Necessary materials: paper or notebook (or computer if you prefer digital), pencil or pen, internet access (to search for some information), desire to learn!
STEP 1: Choose 5 countries from different regions: for example: Colombia, Japan, Sweden, Brazil and Nigeria
STEP 2: Find two key facts about each country:1. Economic Gini index (you can easily find it on Google by typing: “[country] economic Gini” or on the World Bank website). Age distribution (percentages of people between:
0-14 years old 15-64 years old 65 years old or older) Use pages such as the CIA World Factbook or UNDP data.
STEP 3: Build your table: example :
STEP 4: Simple reflection on “Gini of ages” now , without complex formulas , think:Is the population highly concentrated in one age group? Is there a balance between young people, adults, and older adults?
You can mark: "Balanced" if the three bands have similar proportions.
"Young" if there are many people under 15.
"Aged" if there are many people over 65.
And create a new column:
STEP 5: Draw your own conclusions with questions like:Which country has a high level of economic inequality and a very young population?Which one seems more balanced in both aspects?What social challenges could each country face depending on its profile?
Final reflection example (model for replication): "I was struck by the fact that Nigeria, while not having a very high Gini index, has a large number of young people. This could be an opportunity if investment in education is made, but also a risk if there aren't enough jobs. In contrast, Japan has an aging population and little economic inequality, but it will need more care and services for its seniors.AI opinion:
Economic Gini: measures how income is distributed in a country. The higher the index, the more concentrated wealth is in a few hands.
Age Gini: Although not an official metric, it can be constructed by estimating how concentrated the population is in certain age ranges. For example, a country with a very young or very old majority could be considered "demographically unequal."
| Country | Economic Gini | Estimated Age Distribution | Comment |
| South Africa | ~0.63 | Young majority, high birth rate | High inequality in income and age. |
| Brazil | ~0.53 | Demographic transition | Persistent social inequality. |
| Sweden | ~0.27 | Balanced and long-lived population | Example of balance. |
| Japan | ~0.33 | Accelerated aging | Economic equity with a demographic challenge. |
| Nigeria | ~0.35 | Highly young | Low relative economic inequality, but high in age. |
| USA | ~0.41 | Tendency to aging | Growing economic inequality. |
high economic inequality + high age inequality (e.g., South Africa): this indicates multiple social risks, from structural poverty to a lack of opportunities for young people.
Low economic inequality + age balance (e.g., Sweden): this shows societies that are more cohesive and prepared for the future.
Low economic inequality + aging (e.g., Japan): although there is equity, the challenge is to sustain the pension and healthcare systems.
Transition economies (e.g., Brazil or the US): this shows imbalances that can be corrected with well-targeted public policies.
Analyzing both types of inequality provides a more complete view of each country's reality. It's not enough to know whether a country is rich or poor; it's key to understand who lives there, how old most people are, and how resources are distributed .
A country with many young people but no economic opportunities risks losing an entire generation. One with an aging population but no social support can see its quality of life decline. And a country with a balance in both areas has a more solid foundation for development.
1. Select 10 countries with basic data on income and age.
2. Calculate the economic Gini (available from sources such as the World Bank).
3. Estimate the age Gini by comparing proportions of youth (<15 years), adults (15-64), and seniors (65+).
4. Create a scatter plot of both indicators.
5. Reflect: What type of society does each country project?
Let's imagine a graph where:
On the horizontal axis (X) we locate the economic Gini (income inequality).
On the vertical axis (Y) we locate an estimated age Gini (based on the concentration of certain age groups: young people under 15 years old, adults 15-64, over 65).
With this visualization, we could find correlations between both types of inequality and draw conclusions about the social structure of countries.
| Country | Economic Gini | Age Distribution (approx.) | Observations |
| South Africa | ~0.63 | High proportion of young people | High economic and demographic inequality |
| Brazil | ~0.53 | In transition, young people in the majority | Persistent dual inequality |
| Sweden | ~0.27 | Aged but balanced | Example of equity in both fields |
| Japan | ~0.33 | Majority of older adults | Demographic inequality despite low economic inequality |
| Nigeria | ~0.35 | Extremely young population | Demographic risk with moderate income |
| USA | ~0.41 | Unstable equilibrium | Growing economic inequality, population in transition |
In countries with economic equality and balanced demographics (such as Sweden), there is a more solid foundation for collective well-being.
In countries like Japan , economic distribution is relatively equitable, but age inequality is evident: a large proportion of the population is older, which generates challenges in pensions, healthcare, and the workforce.
The United States and Brazil , in demographic transition, show imbalances in both areas and face the challenge of adapting before the gaps become more difficult to close.
Therefore, comparing these two Gini coefficients —economic and demographic—offers a more complete view of the reality of each society.
EDUCATIONAL EXERCISE FOR THE GENERAL PUBLIC: step by step , designed for the general public, with simple, visual and easy-to-apply language. This will allow anyone—student, teacher, curious reader—to experience for themselves the intersection between the economic Gini and an estimate of age inequality, discovering the relationship between economic inequality and age inequality.
Objective: To observe whether there is any relationship between how wealth is distributed in a country and how the ages of its population are distributed.
0-14 years old 15-64 years old 65 years old or older) Use pages such as the CIA World Factbook or UNDP data.
STEP 3: Build your table: example :
| Country | Economic Gini | % Youth (0-14) | % Adults (15-64) | % Seniors (65+) |
| Colombia | 0.50 | 23% | 67% | 10% |
| Japan | 0.33 | 12% | 59% | 29% |
| Nigeria | 0.35 | 43% | 54% | 3% |
| Sweden | 0.27 | 17% | 63% | 20% |
| Brazil | 0.53 | 21% | 70% | 9% |
You can mark: "Balanced" if the three bands have similar proportions.
"Young" if there are many people under 15.
"Aged" if there are many people over 65.
And create a new column:
| Country | Economic Gini | Age Profile |
| Colombia | 0.50 | Balanced |
| Japan | 0.33 | Aged |
| Nigeria | 0.35 | Young |
| Sweden | 0.27 | Balanced |
| Brazil | 0.53 | Balanced |


