♪ [music] ♪
[Alex] We all know that there are rich countries and poor countries.
The United States?
It's one of the richest countries in the world
with one of the highest standards of living.
The Central African Republic
is one of the poorest countries in the world.
Mexico? It's somewhere in between.
But just how big are these differences
between the rich and the poor countries?
And how do we measure these differences?
We're going to measure the differences in living standards
by looking at Real GDP per capita.
That's a country's Gross Domestic Product
divided by its population.
Real GDP per capita captures
the average individual's command over goods and services --
their purchasing power.
Or, put another way, how much stuff,
which we'll picture here using a basket of groceries,
can an average person buy in a year?
So, let's start with the Central African Republic.
This is a small, landlocked nation in Africa.
It's currently suffering under a civil war.
It's probably the poorest country in the world.
In the CAR, an average person can buy
just six baskets of stuff in a year.
Now let's consider Mexico,
a country you might be a little bit more familiar with.
If the average person in the CAR --
if they can buy six baskets of goods in a year,
how many baskets do you think
that the average person in Mexico can buy?
Take a moment, take a guess, make a mental note of it.
We'll come back to that.
Now let's look at the largest of the developed nations,
the United States.
How many baskets of goods do you guess
that the average American can buy in a year?
Okay, have you got your guesses?
Here are the answers.
In our depiction, each basket is worth
$100 of buying power per year.
Using data from the International Monetary Fund,
Real GDP per capita -- in the Central African Republic --
it's about $600 per year.
Just six baskets.
Real GDP per capita in Mexico, in contrast, is $17,800 per year.
Or 178 baskets.
Both of these numbers, by the way,
have been converted to dollars by taking into account
differences in prices in these countries.
These are so-called purchasing power parity conversions --
the most accurate way we know to compare living standards
across different countries.
Now let's look at Mexico and the CAR again.
The average person in Mexico --
they can buy 29 times as much stuff in a year
as the average person in the Central African Republic.
What about the average American?
Well, this is how much the average American can buy --
545 baskets.
That's three times more than the average person in Mexico,
and 90 times more than the average person
in the Central African Republic.
So, when we're talking about differences in wealth
between countries -- these are not small differences --
but regularly, on the order of 10, 20, 50,
sometimes 100 times more in one country than in another.
And countries that we might sometimes lump together in our mind
as being poor, like Mexico and the Central African Republic --
they're not nearly in the same league.
The prosperity in Mexico --
it's much closer to the United States than it is
to the truly destitute nations, such as the Central African Republic.
These huge disparities in wealth, have they always existed?
Are countries converging? Are they diverging?
Is it getting better or worse?
Are some countries catching up?
These are all topics of some of our upcoming videos,
so get ready to dig in.
[Narrator] If you want to test yourself,
click "Practice Questions."
Or, if you're ready to move on,
you can click "Go to the Next Video."
You can also visit MRUniversity.com
to see our entire library of videos and resources.
♪ [music] ♪