Migrant workers returning home to start businesses has played a strong supporting role in promoting regional poverty alleviation and rural revitalization. How to enhance return migrants’ entrepreneurial intention is of vital importance. Using survey data on return migrants from many places in China, this article analyzes the mechanism of entrepreneurial resilience, perception of entrepreneurial opportunity and entrepreneurial intention, and the moderating effect of entrepreneurial atmosphere. The results show that entrepreneurial resilience has a significant positive impact on entrepreneurial intention; entrepreneurial opportunity perception plays a partial mediating role between entrepreneurial resilience and entrepreneurial intention. In addition, entrepreneurial atmosphere negatively moderates the relationship between entrepreneurial resilience and entrepreneurial intention, and between entrepreneurial resilience and perception of entrepreneurial opportunity. Therefore, we suggest that while creating a good entrepreneurial atmosphere, local governments at all levels in China must also pay attention to avoiding excessive intervention that aggravates the vulnerability of return migrants to entrepreneurship.

The article analyzed the income differences between flexibly and nonflexibly employed persons based on the 2018 China Mobile Population Dynamics Monitoring Data, using OLS methods, propensity score matching (PSM), and Oaxaca-Blinder decomposition. The results show that the income of flexibly employed persons is 11.9%–23.6% higher than that of nonflexibly employed persons, with differences in individual endowment characteristics explaining 53.9% of the income difference and differences in coefficients of nonmarket factors explaining 45.7% of the income difference. The degree of income difference between the two groups in different industries varies; except for the primary industry, the secondary and tertiary industries all show higher income for flexibly employed persons than for nonflexibly employed persons. The difference in income between the two groups was as high as 25% or more in the sectors of “rental and business services,” “education,” and “culture, sports, and entertainment.” The high ratio of employers and self-employed workers in flexible employment and the fact that the average number of hours worked per week is 12.6 hours higher for flexible workers than for nonflexible workers are important factors contributing to the difference in earnings between these two groups. Clarifying the extent of the current income disparity between flexible and nonflexible employment groups and its sources, and formulating and adjusting relevant policies and measures in a timely manner are conducive to creating a fair and equitable labour market environment and promoting the healthy development of flexible employment under the new circumstances.

Ambidextrous innovation is key to the high-quality and sustainable development of enterprises, but it remains unclear how digital capabilities affect knowledge management and ambidextrous innovation in the digital economy era. Based on organizational learning theory, this paper explores the impact pathways of digital capabilities on knowledge management and ambidextrous innovation, while also analyzing the moderating effect of knowledge inertia. Empirical research on 253 technology-based small and medium-sized enterprises (SMEs) demonstrates that digital capabilities have a significant positive effect on both exploitative and exploratory innovation, and they influence both types of innovation through the mediating role of knowledge management. Furthermore, knowledge inertia negatively moderates the impact of digital capabilities on knowledge management and exploratory innovation. This study reveals the internal mechanism by which digital capabilities drive ambidextrous innovation through knowledge management, providing theoretical support for enterprises to deepen digitalization and carry out ambidextrous innovation.

Different entrepreneurial models have a differentiated impact on creating jobs and stimulating economic growth. For China, to promote the implementation of the Rural Revitalization Strategy, it is necessary to further optimize the entrepreneurial models of return migrants. Through FSQCA (fuzzy set qualitative comparison method), this paper explores the antecedent conditions and configuration path of the entrepreneurial model of return migrant. The results show that there are three paths for opportunistic Entrepreneurship: “risk preference & social norm oriented”, “personal factor oriented”, and “previous experience & opportunity recognition ability oriented; The two paths have substitution effect in explaining survival entrepreneurship; Social norms play an important role in both opportunity and survival entrepreneurship; There is an asymmetric relationship between opportunity and survival entrepreneurship.

Liaozhong Sag is an important hydrocarbon-bearing area in the Bohai Bay Basin. During the deposition of the Shahejie Formation, the provenance system within and outside the basin is complex with variable lithologies, leading to remarkable reservoir heterogeneity and obscure provenance effects on reservoir development. Based on detrital zircon U-Pb dating and petrological analysis, the eastern and western provenance systems of the Shahejie Formation are interpreted. The results indicate that the detrital zircons in the western Liaozhong Sag are predominately Archean and Cretaceous in age, with the material composition of sandy conglomerates closely matching that of the buried-hill drilled in the Liaoxi Low Uplift indicating an intrabasinal uplift as the primary source. In the eastern Liaozhong Sag, a tri-peak distribution of Archean, Proterozoic, and Cretaceous detrital zircons suggests that the Liaodong Uplift is not fully formed during this period. Instead, Archean and Proterozoic metamorphic rocks from outside the basin are the major sources, with occasional contributions from Mesozoic volcanic rock on the slope. Based on the provenance analysis and microscopic observation, we develop that in the west, sediments around the intrabasinal uplift are periodically exposed, leached, and intensely dissolved, leading to the formation of high-quality reservoirs with tightly calcareous cemented sandstone interbeds. In the east, two models of high-quality reservoirs and diagenetic evolution are established. One is characterized by shallow burial depth, volcanic provenance, minimal compaction, and extensive dissolution; and the other is characterized by greater burial depth, metamorphic provenance, and fracture development within conglomerate gravels.