生活服务网络平台与人民生活息息相关，国家对其监管过程并非一帆风顺。现实层面，生活服务网络平台监管政策持续性调整，相关叙事已然成为影响政策变迁的重要因素；理论层面，严格意义上的科学方法对政策变迁现象解释的固有局限为叙事分析视角引入提供了空间。以政策叙事对政策变迁的影响为研究主题，分析政策叙事对生活服务网络平台监管政策变迁的影响，有助于将叙事分析引入中国政策变迁研究、提供新的理论视角，有利于揭示政策变迁中主体的叙事竞争过程及其背后的政策态度，了解当前生活服务网络平台监管领域中的叙事问题，从而更好地预测未来政策走向。

基于政策叙事理论和制度语法工具，以修正后的叙事式政策框架作为分析框架，选取网约车与外卖平台监管作为案例，以两类平台监管过程中的政策变迁过程和各方主体叙事作为分析对象，进行双案例分析，以便考察政策叙事对生活服务网络平台监管政策变迁的影响，回应叙事式政策框架在分析中国政策变迁过程的适用性问题。研究结果对三个方面进行了回答：

生活服务网络平台监管政策如何变迁。网约车平台与外卖平台监管政策在监管背景、平台性质、主体间关系、监管手段、技术要求等方面存在诸多相似性，政策变迁结果却不尽相同。网约车平台监管政策变迁过程中，政策总体目标没有改变，政策工具及其设置根据情境变化进行动态调整；外卖平台监管政策的总体目标、政策工具及其设置均未发生改变，政策框架确立以后陷入执行阻滞。

生活服务网络平台监管政策变迁过程中叙事如何进行。通过对网约车与外卖平台监管政策叙事内容与形式的分析发现，两者在叙事角色、情节、寓意、策略以及信念系统上均有所差异。网约车平台监管政策变迁过程中，在政策问题界定上联盟间叙事竞争的主要矛盾焦点较为明确，在联盟信念学习上联盟间主体流动较为频繁，在个人认知上主体的社会形象转变较为一致；外卖平台监管政策变迁过程中，在政策问题界定上联盟间叙事竞争的主要矛盾焦点尚且模糊，在联盟信念学习上联盟间主体流动不明显，在个人认知上主体的社会形象呈碎片化。

生活服务网络平台监管政策叙事如何影响政策变迁。政策叙事中观层面的政策问题因素、联盟信念因素以及微观层面的个人认知因素是推开政策变迁之窗的必要非充分条件：政策问题是影响政策变迁之窗的基础性因素，通过对政策问题界定来影响中观层面叙事主要矛盾焦点的模糊与否；联盟信念是影响政策变迁之窗的关键性因素，通过中观层面叙事主体之间的流动影响联盟信念学习过程；个人认知是影响政策变迁的保障性因素，个人认知通过微观层面叙事主体社会形象的构建或打破来影响共有信念的变迁。当问题界定由模糊到明确、联盟间信念学习由偶然到频繁、相关主体社会形象由碎片到统一，且这三个条件耦合并作用于政策变迁过程时，在政府叙事这一直接性因素的推动下，才有可能推开政策变迁之窗；此外，中观层面联盟和微观层面个人需要对政策主要矛盾有较好的把握，才有可能推动政策叙事的有效竞争。

本研究创新之处在于将政策叙事视角引入中国政策变迁研究，理论贡献在于对叙事式政策框架进行了本土化改造，在集体层面和个人层面揭开从认知到行动的“黑箱”。为进一步提升政策变迁过程中政府叙事水平，提出以下三个政策建议：明确政策问题，加强政策叙事竞争的有效性；促进信念交流，拓展政策叙事流动的可及性；加强个人认知，提升政策叙事陶染的导向性。

The regulation of life service network platform, which is closely related to people’s life, is not plain sailing. On the realistic level, the regulatory policies of life service network platforms continue to be adjusted, and relevant narratives have become an important factor affecting policy changes. On the theories level, the inherent limitations of scientific method in the strict sense provide space for the narrative policy analysis. This study takes the influence of policy narrative on policy change as the research topic, and tries to explain the influence of policy narrative on the policy change of life service network platform. This research helps to not only introduce narrative analysis in policy change, which provides a new theoretical perspective to explain the process of policy change in China, but also reveal the attitude and interaction of narrative subjects in the process of policy change in China, as well as understand narrative problems and contradictions in the current regulatory policies of life service network platform, so as to better understand and predict the future policy trend.

Based on policy narratives and institutional grammar tools, this study takes the revised narrative policy framework as the theoretical framework, selects the regulatory policies of ride-hailing platforms and takeout platforms as cases, and analyzes the narrative and policy changes of the parties in the two types of platform regulation. In order to investigate the impact of policy narrative on the policy change of life service network platform, and to respond to the applicability of narrative policy framework in analyzing the policy change process in China. The regulatory policies of online ride-hailing platforms and takeout platforms are selected as cases, and the narrative and policy changes of the two types of platform regulatory policies are taken as the analysis objects for comparative case analysis, so as to investigate the influence of policy narratives on the policy change and respond to the applicability of narrative policy framework in analyzing the policy change in China. Here are three conclusions:

How does the regulatory policy of life service network platform change? The results show that there are many similarities between the regulatory policies of ride-hailing platforms and takeout platforms in terms of background, type of platform, intersubjective relationship, regulatory means and technical requirements, but the policy changes are not the same. Regulatory policy change of ride-hailing platforms belongs to second-order change, which means the ultimate goal of the policy remain unchanged, and the policy instruments and their allocation are adjusted in accordance with past experience and situations. On the contrary, the ultimate goal, policy instruments and its setting of takeout platforms have not changed, and the implementation of the policy has been blocked.

What is the regulatory policy narrative of life service network platform? By comparing the policy narratives of ride-hailing platforms and takeout platforms, it is found that they differ in characters, plots, moral, strategies and belief systems. In the process of regulatory policy changes of ride-hailing platforms, the main contradictory focus of narrative competition among alliances is relatively clear in the definition of policy issues, actors flow frequently among alliances in the learning of alliance beliefs, and social image changes of actors are relatively consistent in personal cognition.  In the process of regulatory policy change of takeout platform, the main contradiction focus of narrative competition between alliances is still vague in the definition of policy issues, the actors flow between alliances is not obvious, and the social image of actors is fragmented in personal cognition.

How does life service network platform regulatory policy narrative affect policy changes? It can be seen that there are three necessary but not sufficient conditions for the regulatory policy change of life service network platforms: Policy issues, alliance beliefs, and personal perceptions. Policy issues are the basic factors that influence the window of policy changes. Policy issues influence whether the focus of the main contradiction is fuzzy or not through the definition of the issues. Alliance belief is the key factor influencing the window of policy change. Alliance belief influences the learning process of alliance belief through the flow of narrative subjects at the meso level. Personal cognition is the guarantee factor that affects policy change. Personal cognition influences the change of shared belief through the construction or breaking of social image of narrative subject at micro level. When policy issues change from vague to clear, belief learning between alliances changes from accidental to frequent, and social image of subjects changes from fragmented to unified, it is possible to open the window of policy change driven by the direct factor of government narrative. In addition, the alliance at the meso level and the individual at the micro level need to have a good grasp of the main contradiction of policy to promote positive competition of policy narratives. 

The value of the research lies in the introduction of narrative analysis in policy change of China. The theoretical contribution is the combination of policy narrative analysis and institutional grammar tools, the localization of the Narrative Policy Framework, and the opening of the "black box" from cognition to action at the collective level and individual level. In order to improve the government policy narratives in China, this study puts forward the following three suggestions: Firstly, the government should clarify policy issues and strengthen the effectiveness of policy narrative competition; The second is promoting the exchange of beliefs among coalitions and expand the accessibility of policy narratives; And then, the government should pay more attention to personal cognition in order to make its narrative more instructive.