Progress toward unfettered international commerce stumbled last week with the collapse of the World Trade Organization’s Doha talks a seven-year effort to establish new global trade rules. The lengthy talks were complicated by the rapid emergence of China and India as major economic powers with commercial and strategic interests to protect and the clout to do so.  Many observers say the talks’ collapse is a setback for poorer nations which need access to larger markets in order for their economies to grow. Wharton professors Stephen Kobrin whose research interests include globalization and Marshall Meyer an authority on China’s economy recently spoke to Knowledge at Wharton about the talks’ collapse global commerce and China’s interest in the rules governing trade.