School of Economics and Management, Tianjin Chengjian University, Tianjin, China.
PLoS One. 2023 Apr 4;18(4):e0283688. doi: 10.1371/journal.pone.0283688. eCollection 2023.
Whether the place-based industrial policy promotes regional economic growth is a hot issue in the field of regional industrial economic practice. As a major national strategy in China, the Beijing-Tianjin-Hebei industrial coordinated development policy has been implemented more than 8 years. Verifying its effect on regional economic growth and revealing the policy action path will help to further optimize the policy implementation process through feedback. In this paper, the policy effect and its differentiation are empirically studied from 'quality' and 'quantity' respectively by establishing a growth model using the Dual Differences method. The results show that the Beijing-Tianjin-Hebei industrial coordinated development policy improves total factor productivity by 2.26% in terms of 'quality', and reduces GDP growth rate by 4.65% in terms of 'quantity'. For the different region, the GDP growth rate increased by 1.28%, while total factor productivity decreased by 2.63% in Beijing, the GDP growth rate decreased by 3.17% and total factor productivity increased by 0.87% in Tianjin, and the GDP growth rate increased by 2.56% and total factor productivity increased by 1.58% in Hebei. The policy is mainly realized by fixed asset investment, capital deepening degree and enterprise scale expansion, while the effect of labor input, R&D investment and enterprise number is not significant. The policy is to give full play to the driving role of fixed asset investment such as "new infrastructure", increase investment in labor and research and development in the region, strengthen the construction of a competitive market environment, and stabilize the 'quality' and 'quantity' to further release policy dividends.
基于区位的产业政策是否促进了区域经济增长，是区域产业经济实践领域的一个热点问题。京津冀协同发展作为中国的一项重大国家战略，已经实施了 8 年多。验证其对区域经济增长的效果，并揭示政策作用路径，将有助于通过反馈进一步优化政策实施过程。本文通过建立增长模型，利用双重差分法从“质”和“量”两个方面实证研究了政策的效应及其差异。结果表明，京津冀协同发展政策从“质”的方面提高了全要素生产率 2.26%，从“量”的方面降低了 GDP 增长率 4.65%。对于不同地区，北京的 GDP 增长率提高了 1.28%，而全要素生产率下降了 2.63%；天津的 GDP 增长率下降了 3.17%，全要素生产率提高了 0.87%；河北的 GDP 增长率提高了 2.56%，全要素生产率提高了 1.58%。政策主要通过固定资产投资、资本深化程度和企业规模扩张来实现，而劳动力投入、研发投资和企业数量的效果并不显著。政策要充分发挥“新基建”等固定资产投资的带动作用，加大区域劳动和研发投入，加强竞争市场环境建设，稳定“质”和“量”，进一步释放政策红利。
