What's the right age to quit maths? By Holly Honderich BBC News, Washington 11 June 2019 Unlike in many other countries, young people in the US must take maths until they leave ..
How do you measure the value and success of the economy?
Traditionally, by reporting on gross domestic product - the amount an economy produces of goods like cars and services like tourism.
But, since the financial crisis that measure has been questioned.
It can go up - showing growth - while at the same time people's actual incomes are going down.
Which has left people wondering if the economy is really working for them.
Another way to measure economic success was launched today by the World Bank.
Its Human Capital Index ranks countries according to how much is invested in young people.
The higher the investment in education and health the more productive and higher earning the workforce tends to be, the World Bank says.
Which leads to the creation of higher levels of wealth and a stronger economy.