It also misses a lot of chinese industry. It's somewhat harder to track the business operations of a Chinese army owned construction company than a US NYSE list

It also misses a lot of chinese industry. It's somewhat harder to track the business operations of a Chinese army owned construction company than a US NYSE listed engineering firm. In $ terms there is also a big gap. The Boston big dig costs $22Bn, while a similar project undertaken by chinese army conscripts is likely to cost 1/100 of that, it doesn't mean that the US industry is 100x bigger or better - just 100x as expensive