通讯机构:
[Li, HH ] H;Henan Normal Univ, Sch Polit Sci & Publ Adm, Xinxiang 453007, Peoples R China.
关键词:
digital economy;green and low-carbon transformation of land use;spatial spillover effect;financial agglomeration;intellectual property protection
摘要:
The green and low-carbon transformation of land use (GLTLU) is a pressing global issue that requires urgent attention. The digital economy has emerged as a new driver for the GLTLU. However, current research mainly focuses on the measurement and environmental effects of the digital economy, with less exploration of how the digital economy influences the spatial effects and regulatory mechanisms of GLTLU, particularly regarding the differential impacts and specific mechanisms at the regional level. This study uses panel data from 283 cities in China from 2011 to 2019, employing the spatial Durbin model (SDM) and the panel threshold model to examine the spatial and regulatory mechanisms of the digital economy's impact on GLTLU. The findings reveal that digital economy promotes GLTLU not only within cities but also in surrounding regions. Robustness analyses support this conclusion. Notably, the digital economy's positive impact on GLTLU in surrounding areas is confined to the central region of China. In contrast, the Yangtze River Delta urban agglomeration experiences a significant negative impact on GLTLU in nearby regions due to the digital economy. The study also identifies that the positive spatial spillover effect of the digital economy on GLTLU reaches its peak at a distance of 450 km. Additionally, the digital economy's ability to promote GLTLU is contingent upon financial agglomeration levels exceeding 9.1728. Moreover, the local government's emphasis on the digital economy and intellectual property protection enhances the digital economy's impact on GLTLU. The promotion effect is maximized when these factors surpass the thresholds of 27.8054 and 3.5189, respectively. Overall, this study contributes to the understanding of how the digital economy influences sustainable land development, highlighting the critical role of regional factors and regulatory mechanisms in amplifying the digital economy's positive effects on GLTLU.
摘要:
<jats:p>An enterprise’s capability is based on the quantity and collocation pattern of the heterogeneous resources it possesses. Innovation resources are the source of enterprise innovation capability. However, there is still a “black box” problem of the impact of the intensity of government support on enterprise innovation. Therefore, it is necessary to study high- or low-level enterprise innovation capability by combining the internal and external factors of the enterprise—the background characteristics of R&D personnel and the degree of government support. Based on the configuration perspective, this study uses the qualitative comparative analysis (fsQCA) method to conduct a comparative analysis of the innovation capabilities of enterprises in five time windows over six years with the longitudinal database of China’s industrial enterprises whose operating income exceeds RMB 20 million from 2010 to 2015. This paper summarizes two ways of realizing high-level enterprise innovation capability: female and highly educated R&D personnel type, and highly educated R&D personnel and high government investment type. The enterprise innovation capability is affected simultaneously by multiple conditional variables, and the impact of each conditional variable on enterprise innovation capability has a trend. Further, it analyzes the impact of every antecedent variable comparing high- to low-level enterprise innovation.</jats:p>
关键词:
green shipping;SECAs;carbon emission;itinerary design;MOPSO;TOPSIS
摘要:
In order to reduce pollution caused by ship emissions, the International Maritime Organization (IMO) implemented sulfur emission control areas (SECAs). In comparison to ordinary vessels, cruise ships with dual attributes of transportation and tourism generate a greater amount of marine pollution, which poses a significant threat to the marine environment in both berthing ports and the sailing area. In light of the fierce competition of the cruise tourism market, cruise lines are looking for strategies, such as designing more attractive cruise routes, to maintain their core competencies under the emission control policy. In order to achieve this goal, this paper presents a mixed-integer non-linear programming (MINP) model with two objectives and is derived from the traditional route optimization problem. The primary objective is to optimize the route and speed of a cruise liner, while simultaneously enhancing route competitiveness and minimizing carbon emissions both within and outside the SECAs. Subsequently, the multi-objective particle swarm optimization (MOPSO) algorithm was used to reach the objective, and simulations were carried out to verify the effectiveness of the model and method. The results show that speed and sailing route optimization can affect carbon emissions. This paper has a certain application value and guiding significance for cruise line decision makers that will be beneficial for the environment.
摘要:
This study examines the optimal pricing and disclosure strategies of sellers who possess private quality information. We consider two market structures, namely, monopoly market and duopoly market; under each market structure, we further consider two characteristics of consumer preferences for the same product: homogeneity and heterogeneity. How competition and whether consumers are heterogeneous affects sellers' disclosure strategies, and profitability is the focus of our attention. Interestingly, we show that the monopolistic seller's profit is likely to increase as the disclosure cost, which is not possible in a competitive environment. We indicate that when consumers are homogeneous, sellers can obtain higher returns and are more likely to engage in quality disclosure. Finally, we show that when the market is filled with homogeneous consumers, competition always increases the motivation for sellers to engage in quality disclosure. However, when the market is filled with heterogeneous consumers, competition actually hinders sellers from engaging in quality disclosure when the cost of disclosure is low. Our results help company managers in making better disclosure and pricing strategies.
摘要:
PURPOSE: Based on social exchange theory and social cognition theory, this paper studies the effect of work-related identity discrepancy on proactive behavior of close-leadership employees through hierarchical regression analysis and examines the mediating effect of face-pressure and the moderating effect of benevolent leadership. METHODS: This work surveyed 516 employees by questionnaire. The first round of survey mainly investigated employees in Changsha City, and the second round of survey mainly investigated employees' work-related identity discrepancy, face-pressure, benevolent leadership and proactive behavior in >10 regions. By tracking and matching, 396 valid questionnaires were finally obtained. Spss 22.0 was used to describe all the study variables; Mplus 7.0 is used to carry out a confirmatory factor analysis and a multi-path regression model. RESULTS: The difference in work-related identity discrepancy had a significant negative impact on proactive behavior. Face-pressure partially mediated the relationship between work-related identity discrepancy and proactive behavior. Benevolent leadership moderated the indirect relationship between work-related identity discrepancy, proactive behavior and face-pressure. We hope that the findings and discussions from this study will spark further exploration and practical application of enterprise management theories. CONCLUSION: In the context of leadership change, employee identity differences in perception can affect employee proactive behavior, especially for some close-leadership employees. Face-pressure in traditional Chinese culture has a prominent place. Managers should strive to foster an open and inclusive organizational atmosphere that promotes interaction and communication among employees, reduces the impact of negative factors like face pressure, and thereby stimulates employees' work initiative and innovative spirit. This enriches and deepens our understanding within the fields of organizational behavior and cross-cultural management.