Ian Bremmer's Quick Take: A Quick Take to kick off your week. Want to talk about the most important geopolitical relationship in the world, the US and China. Janet Yellen, the secretary of treasury, back over to China yet again, both to help ensure that the relationship is reasonably stable, also to deliver tough messages in places where she feels like that is required, the Biden administration feels it's required. And it's been a useful trip.

On the one hand, the United States, like the Europeans, delivering tough messages on Chinese dumping, on overproduction and low-cost goods going into the American and European markets, because of massive state subsidy, into key sectors. Particular concern on transition energy. On the one hand, great to see more effort to reduce carbon emissions, both in China and globally, and as the prices come down, that's a good thing. On the other hand, really hurting less competitive corporates that don't have that level of state subsidy in the United States and Europe. Tesla was really fast out of the box, hasn't got much support from the White House, but that's been the American champion to the extent that there is one. On the other hand, when you talk about other corporations, American and European, nowhere close to the Chinese. The hundreds of Chinese EV companies that are less expensive, they are higher quality, they are manufacturing at scale, and people can buy them all over the world. So, that is creating a lot of friction.