基于双重差分模型的京津冀协同发展政策对技术市场扩张效应研究

随着京津冀协同发展上升为国家战略,三地在资源优化配置、空间格局合理利用、产业转移与承接等方面的协同进程逐步深化,技术市场交易额逐步扩大。进一步探究京津冀协同发展政策对技术市场扩张的影响,为推动区域经济高质量发展提供实证支撑。将京津冀协同发展战略实施对区域产生的政策效应、时间效应和个体效应纳入同一分析框架,利用2010—2021年中国31个省份的面板数据构建双重差分模型,评估政策实施后京津冀与其他地区在技术市场扩张的趋势相较于政策实施前的趋势是否存在差异。结果表明:京津冀协同发展政策对区域技术市场扩张的作用显著,但规模以上工业企业实施的科技项目数量越多、投入的科研力量越大,就越会抑制技术市场扩张效应,部分抵消政策实施对技术市场的扩张效应。对此,从加快建立区域内科技创新协调机制、加快技术市场一体化建设、促使京津冀协同发展政策与区域内科技创新投入同向发力等方面提出对策建议。

我国县域老年人的养老现状、问题与对策建议——基于29个省份320个县域的问卷调查

当前我国人口老龄化程度不断加深,广大的县域地区应对老龄化挑战的任务则更加艰巨。为深入了解我国县域地区养老现状,本文收集来自全国320个县的调查问卷,分析发现:目前我国县域地区居家养老是主流,其中七成老人处于“空巢”独居状态。与此同时,县域养老服务发展仍面临着居家老人生活品质待提高、社区居家养老服务供给不足、城乡养老金水平差异较明显、失能失智老人照料需求难以满足、机构养老供需不匹配等主要问题。对此,建议从支持互助照料式养老模式发展、提升社区居家养老服务水平、完善农村养老金动态调整机制、加强失能失智老人专业化照料、优化机构养老服务供给等方面持续发力,进一步提升县域地区养老服务水平。

The Digital Inclusive Finance and Enterprise Innovation:Evidence From A-Share Market

In China,the integration of digital technology and finance has gradually formed a digital supply mode of inclusive finance,which alleviates the financing limitations of small and medium-sized businesses to a certain extent and is significant for enterprise innovation activities that need financial support.Under the National Innovation-driven Development Strategy,it is particularly meaningful to evaluate whether digital inclusive finance can foster company innovation.This article empirically evaluates the impact of digital inclusive finance on firm innovation and development using data from all listed companies on the Shanghai Stock Exchange and Shenzhen Stock Exchange from 2011 to 2018 together with the city level digital inclusive finance index.The result shows how digital inclusive financing may support businesses’innovative processes,and its role in promoting innovation differs among enterprises of different scales,but such heterogeneity effect can be absorbed by industry effect and time effect.The result of this paper sheds lights on the role of digital inclusive finance in improving enterprise performance by solving the financing dilemma of them,and according to the empirical results,this paper suggests that the support for digital inclusive finance should be further improved in order to promote the good and healthy development of the real economy,which refers to the part of a country’s economy that produces goods and services,rather than the part that consists of financial services such as banks and stock markets.

车载式环保杆管在线清洗装置应用与效果

在油井的井下作业的过程中,为保证施工过程环保且施工质量合格,要做到污油污水不落地、杆管清洁。目前油井井下作业面临的环境污染主要是油管溢流以及刺洗杆管产生的污油污水,杆管清洁面临的问题主要是人工刺洗劳动强度大,油管内壁有蜡质残留。针对萨北油田环保要求,以及井下作业工艺需求,试验应用了车载式环保杆管在线清洗装置,对比传统作业清洗方式,解决了常规作业方式溢流及杆管刺洗污水回收困难及杆管清洗效果不好、劳动强度大的的问题,达到了降低劳动强度和安全环保的目的。