Many cities in China have issued various policies aimed at strengthening the investment and construction of urban parks to promote ecological development. An urban park is often considered by scholars and policy makers only in terms of its ecological and social values. However, its economic externalities have not been studied fully. This paper adopts Points of Interest data to identify and measure the impact of urban park opening on surrounding consumer amenities, based on a difference-in-differences model. The empirical results show that the newly built parks in Guiyang, also known as the “Thousand-park City,” promote the surrounding consumer amenities, especially dining and daily-life services. Besides, parks in different locations and with different characteristics show heterogeneity in this spill-over effect. This study enriches the understanding of the economic roles of urban parks, provides references for the planning of urban green space, and supports the urban synchronous economic and ecological development mode to some extent.

中文翻译：

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周边消费设施的增长：城市公园的经济外部性

我国许多城市出台了各种政策，旨在加强城市公园的投资建设，促进生态发展。学者和政策制定者通常仅根据其生态和社会价值来考虑城市公园。然而，其经济外部性尚未得到充分研究。本文采用兴趣点数据，基于差异中的差异模型，识别和衡量城市公园开放对周边消费者便利设施的影响。实证结果表明，被誉为“千园之城”的贵阳新建公园，促进了周边消费配套，尤其是餐饮和生活服务。此外，不同地点、不同特色的公园在这种溢出效应中表现出异质性。