Energy shortages in China and Europe, as well as Covid-related lockdowns, have contributed to the huge squeeze in supply chains. Supply chains remain vulnerable, especially as the risk the new omicron strain poses remains unknown, Morgan Stanley said in an 80-page report assessing the global supply chain, its risks and chokepoints. The investment firm identified companies it says are “regional champions,” “recognizing their importance to supply chains,” as well as companies that most pressured by supply chain bottlenecks.