Shuli Ren, Columnist

Don’t Bother Investing in China Unless You’re Chinese

Only a local can properly circumvent the country’s infamous firewall. Even asset managers in Hong Kong no longer have a clear picture of the mainland.

It’s getting harder to see what’s really happening in the economy.

Photographer: Qilai Shen/Bloomberg
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It did not happen overnight. For some time, China has steadily created a tightly sealed vault for its economy, cutting off international access to various databases involving corporate registration, patents and even official statistical yearbooks.

The latest to raise eyebrows is Shanghai-based Wind Information Co., a data platform widely used by traders. In recent days, many foreign think tanks and research firms have found they can’t renew subscriptions to Wind because of “compliance” issues, The Wall Street Journal reported.