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你确定只有23%吗？ 房地产周边的产业呢？ 建材产业，家居产业，物业产业，维护产业，中介公司等等。你觉得房地产倒了，他们怎么办？ 这还不算多少人失业后，影响消费能力。

:
https://www.caixabankresearch.com/en/sector-analysis/real-estate/chinas-real-estate-sector-size-does-matter
Goldman Sachs, point to a «broad measure» of China’s real estate sector of between 18% and 30% of GDP. A more precise measure could be around 23% by excluding, for instance, infrastructure, which accounts for 7% of GDP. On the other hand, excluding real estate services (which are not fully included in our measure of final demand) would lead to an estimate of around 18% of GDP.