Policy network evaluation of China's rental housing market from the perspective of text measurement

In recent years, the Chinese government has gradually paid attention to the development of the rental housing market and began to issue a large number of relevant policies by the central and local governments in 2016. In view of the lack of systematic evaluation of rental housing market policy in China, this study constructed an interdependent multi-layer network of 'policy objective-policy instrument-issuing department-stakeholder' from the perspective of text measurement, and used network indexes to measure the global features of the four-dimensional sub-policy network and the differential characteristics of the network evolution process, the results are as follows: (i) The four policy instruments in the network of policy instruments, namely, instruction, supply leading, management system and management system reform, are leaders in the network. (ii) The absolute central node in the policy objective network is to increase the effective supply of rental housing. (iii) The central nodes in the issuing department network are housing development department and the land department. (iv) Market subject and public are the central clusters in the stakeholder network. (v) The network nodes of stakeholder policy instruments have the strongest correlation, and there are three clusters with obvious spatial distance segmentation.