Hello and welcome to the Intelligence on Economist Radio. I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

As women flooded into the formal labor market in the mid-20th century, working part-time

was a desirable middle ground. But pick apart the data and it's clear that part-time work

comes at a cost not only to women's pay, but also to their career progression.

And as smartphones and mobile money have spread across Africa, so has sports gambling.

For a long time, Ethiopia lagged behind the trend. But the gambling market is liberalizing there,

and Ethiopians are piling into the betting line.

First up, though.

70 years ago, masses of Soviet citizens proudly sang this song to celebrate the foundation

of the People's Republic of China.

It goes, Moscow, Beijing. People go forward for the bright path, for the lasting peace

under the banner of freedom.

It specifically praises the closeness of the relationship between the two communist leaders,

Joseph Stalin and Mao Zedong. It's clear too about which nation is the more powerful.

The lyrics here are, this is the mighty Soviet Union, alongside the new China striving.

Since that song was written, much has changed. The relationship between China and what's now

Russia has had its ups and downs. These days, it's close again.

This week, Chinese Premier Li Kechang is in Moscow for trade talks, and Chinese forces,

alongside those of other Asian countries, are conducting military exercises in Russia.

China has stepped in after the Western sanctions on Russia because of what it was doing in

Ukraine. Angela Stent is a professor at Georgetown University. She recently wrote a book called

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