In the process of Chinese-style modernization，China's economy must get rid of the path dependence of traditional quantitative growth，and strive to promote high-quality development，so as to ease the major social contradictions and achieve sustainable，healthy and stable economic developmentIn the process of Chinesestyle modernization，the systematic logic of promoting high-quality economic development in China includes five dimensions: historical logic，value logic，theoretical logic，practical logic and policy logicStarting from the historical logic of promoting high-quality economic development，the transformation of major contradictions determines that China's economic development model must transform from quantitative economic growth to high-quality developmentThe value logic requires the establishment of a value judgment system with quality as the development goal，and the formation of a value judgment system that combines real value with ultimate valueThe theoretical logic is the optimal path choice for China's high-quality economic development，and the optimal path choice should be the quality coupling and interaction among economic system，natural system and social system that meet the requirements of value logicThe optimal path choice is embodied in the practical logic of the trinity of micro quality，meso quality and macro quality at the micro，meso and macro levelsFinally，the key to the policy logic is to establish a policy system with innovation driven policies，structural coordination policies and quality change policies as the core

The flow of data elements reflects the transmission of market supply and demand signalsThe essence of traffic competition is the competition for trading opportunitiesThe core function of digital platform is circulation，which focuses on improving the efficiency of information matching to compete for attention，which determines that the scope of matching objects can be infiniteHowever，the definition of relevant market focusing on production will be difficult to define the “benchmark product” because the matching market spans multiple production fields，so it is difficult to determine the attentionrelated market represented by trafficBased on the “connection-one structure”perspective，this paper argues that there are three roles in the digital ecology: center，sub-center and periphery，and further strengthens the pattern of the center monopolizing the traffic entrance from the three dimensions of “platform-data-algorithm”(PDA paradigm)，forming a “center-periphery” dependency exploitation system in which the center is to the sub-center and the subcenter is to the peripheral cost in turnIn this paper，three regulatory approaches are proposed for the traffic monopoly with the purpose of controlling the distribution of trading opportunitiesFirst，the relevant time market should be highlighted in the framework of antitrust analysisSecond，expand the connotation of transaction counterpart in the anti-monopoly law，and realize the interconnection between the structural platform and the connected platform with the goal of cross-ecological opening；Third，introduce the principle of open platform，define the necessary facilities for structural platform，and build the oligopoly competition rules of digital platform

The use of financing methods by local governments is constrained by regional characteristicsThis paper brings the two major financing methods at the current stage，municipal investment bonds issued by LGFVs and PPP，into a unified visionStarting from regional characteristics including economic development，fiscal debt and market opening，this paper uses the provincial panel data from 2015 to 2020 to construct a financing method dependence index to reflect local government's use of financing methods，and explores the impact mechanism of regional characteristics on the differences in financing methodsThe study finds that the local government's financing method preferences are mapped to the regional differences in financing methods and the financing method preferences are affected by regional characteristics，and the regional characteristics that affect the two financing methods are different: the regional characteristics that significantly affect municipal investment bonds are closely related to fiscal debt status，and the regional characteristics that significantly affect the PPP are closely related to market openingUnder the influence of the heterogeneity of financial resources，the correlation between the two financing methods and regional characteristics is further refined，and the correlation between the dependence of financing methods and the characteristics of fiscal debt is weaker in the low financial resource groupAt the same time，the substitutability between municipal investment bonds and PPP may lead to the inability to reflect the advantages of the PPPThis paper provides an empirical basis for clarifying the reasons for the differences in financing methods，and can provide a reference for optimizing the financing structure of local governments

Based on the perspective of the change of local government premium collection and payment behavior，this paper comprehensively analyzes the impact of national overall planning of basic pension insurance on financial responsibility by using econometric model and actuarial model，and finds that: First，when the central adjustment system is still implemented，the cumulative financial responsibility from 2021 to 2050 will be 1 104.56 trillion yuanSecond，if the national overall planning is realized，the collection and payment rate of pension insurance will drop by 15.6%，and the cumulative financial responsibility will increase by 23.67% compared with the implementation of the central adjustment systemThird，assuming that the state has issued a reward and punishment mechanism to regulate the premium collection and payment behavior of local governments，the collection and payment rate can be increased by 3.39%，and the cumulative financial responsibility will be reduced by 5.14% compared with the implementation of the national overall planning policy onlyFourth，if the policy of gradually delaying the retirement age is further introduced，the cumulative financial responsibility can be reduced by 17.18%~23.82% compared with the introduction of reward and punishment mechanismIt can be seen that in the process of advancing the national overall planning of pension insurance，the state should introduce the incentive mechanism for the collection and payment of local government premiums，and formulate a plan to delay the retirement age as soon as possible，so as to realize the sustainable development of the fund

The factors that affect enterprise innovation output have always been the focus of academic and practical circlesThis paper takes China's A-share listed companies from 2013 to 2018 as the research sample to investigate the impact of corporate strategy deviance on corporate innovation output in different life cycle stagesThe research finds that corporate strategy deviance is significantly and negatively related to the innovation output of enterprisesWith the increase of corporate strategy deviance，the innovation output of enterprises decreases significantlyIn different life cycle stages of enterprises，the impact of corporate strategy deviance on innovation output presents different characteristicsCompared with maturity stage，the inhibitory effect of corporate strategy deviance on innovation output is more obvious in growing enterprisesFurther research finds that the corporate strategy deviance have an impact on the innovation output of enterprises through financing constraintsThe research results have referencing significance for enterprises to formulate appropriate enterprise strategies in different life cycle stages

Empirical facts show that China has the abnormal phenomenon of low level of intellectual property protection with high level of export sophisticationFrom the perspective of the special “dual track” system of intellectual property protection，this paper provides a reasonable explanation for the above abnormal phenomenonBased on the data of judicial patent protection and administrative patent protection，this paper finds that only administrative patent protection can enhance enterprises' export sophistication，thus administrative protection has played an important role in enhancing enterprises' export sophistication under conditions of insufficient judicial protection of intellectual property rightsHowever，judicial patent protection and administrative protection can't be performed coordinatelyFrom the perspective of mechanism，intellectual property protection has increased enterprises' export sophistication mainly through independent innovationThe results of heterogeneity analysis show that the impact of judicial patent protection and administrative protection on enterprises' export sophistication is different across regions and industriesThis study effectively answers the question of the deviation between China's intellectual property protection and the export sophistication，which is helpful to deepen the understanding of the structural characteristics of China's intellectual property protection system and its trade effects，so as to provide some enlightenment for further promoting the reform of China's intellectual property system

This article uses theories and measures in behavioral and experimental economics to conduct a field experiment among 3 445 rural households in Jilin province and uses the difference-in-difference identification method to assess the causal impact of risk shock on rural households' economic preferences and decisionsIn the presence of risk shock，households become more risk averse，avoid high-risk-high-return investment plans，and are more inconsistent in intertemporal time discountingThe presumption that rational economic agents maintain stable preferences in neoclassical microeconomic models does not hold at least in the short-term after the shockFormal microfinance mitigates the negative risk shocks in terms of reducing pressure，anxiety and negative emotionsIt thus encourages risk-taking behavior，particularly for men，the elderly and the low-educated population，reduces risk aversion in women，increases consistency in intertemporal time discounting，and reduces loss aversion for the elderly or the asset-poor population