Wal-Mart sees opportunities at Apec

The Asia Pacific Economic Cooperation (Apec) summit begins in Beijing today.

While there's a big focus on the meetings between some of the world's largest countries, there is a second, parallel conference going on.

This one features the CEOs of some of world's largest corporations with big operations in the region, like the US retailing giant Walmart.

The BBC's Celia Hatton reports.