How "common prosperity" galvanised the country's tech elite. The notion, recently promoted by Xi Jinping, sits at the core of the Communist Party's intent to redistribute wealth in China following 'socialist principles'. It has prompted companies like Tencent to give north of $7.7 to "common prosperity programmes". However, many experts wonder: is this truly an ideological matter or a reassertion of power in the country? A team of FT reporters take a closer look.