摘要：For a long time, the contradiction between economic growth and environmental deterioration has plagued the Beijing-Tianjin-Hebei region. The spatial distribution research of green product development in this region can be a contradiction. This paper first proposes the theoretical mechanism of product space agglomeration, that is, four effects, which are outside overflow from the external economy, regional external economic differences, cost efficiency, and competitive pressure, affect product space agglomeration. In the long run, product agglomeration in Beijing will present a small truncated inverted U-shape, and the product agglomeration of Tianjin and Hebei has a large truncated inverted U-shape. Next, this paper uses the theory of green product space to study the development space of green products in the three periodic times of 2005, 2009 and 2013 in the Beijing-Tianjin-Hebei region. It is found that over time, the green product space of the three regions has gradually changed from being obviously fragmented and gradually integrated into a state of high connectivity and high proximity. The empirical results verify the hypothetical premise of this article, that is, the maximum value of the proximity between green products and RCA> 1 products in the three regions will obviously positively affect the total output value of this product. On this premise, the spatial agglomeration of high-proximity green products in the Beijing-Tianjin-Hebei region will promote economic growth. Over time, the agglomeration of green product space in Beijing will decline, and the agglomeration of green product space in Tianjin will rise. The agglomeration of green product space in the district will gradually rise. To a certain extent, it will undertake the production of green products in Beijing and Tianjin. Finally, this article puts forward policy suggestions to promote the development of green products in the Beijing-Tianjin-Hebei region from three aspects, which are the incremental development of green product types, the policy orientation of green product industries, the integration of Beijing-Tianjin-Hebei, and dynamic assessment of ecological environmental bearing capacity.
