My comment:
(a) The asset in quotation 2 is the trump card, it means. However, according to 李扬 , China's net asset is just $2.9 trillion ($28.5t minus $25.6t).
(b) In quotation 3, "金融部门中,债务又主要集中在国有企业。"
(i) From the context, one would guess there is a typo here: 非 is missing, and it should be "非 金融部门中,债务又主要集中在国有企业。"
(ii) Indeed that is the case. See