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The purpose of this paper is to examine the impact of urbanicity on rural–urban migrants' dietary diversity and nutrition intake and whether its effect differs across various urban environments of migrants.

Using the individual- and time-invariant fixed effects (two-way FE) model and five-year panel data from the China Health and Nutrition Survey (CHNS), this paper estimates a linear and nonlinear relationship between urbanicity and nutrition. The paper also explores the spatial heterogeneity between rural–urban migrants and rural–suburban migrants. Dietary diversity, total energy intake and the shares of energy obtained from protein and fat, respectively, are used to measure rural–urban migrants' nutrition on both quality and quantity aspects.

The study shows that rural–urban migrants have experienced access to more diverse, convenient and prepared foods, and the food variety consumed is positively associated with community urbanicity. Energy intake is positively and significantly affected by community urbanicity, and it also varies with per capita household income. The obvious inverse U-shaped relationship reveals that improving community urbanicity promotes an increase in the shares of energy obtained from protein and fat at a decreasing rate, until reaching the urbanicity index threshold of 66.69 and 54.26, respectively.

This paper focuses on the nutritional status of rural–urban migrants, an important pillar for China's development, which is often neglected in the research. It examines the urbanicity and the nutrition of migrants in China, which provides a new perspective to understand the dietary and nutritional intake among migrants in the economic and social development. Moreover, the urbanicity index performs better at measuring urban feathers rather than the traditional rural/urban dichotomous classification.

The paper aims to understand the young residents’ household waste intentions through place attachment (PA) approach where place dependency (PD) and place identity (PLI) influence recycling intentions (RIs). Furthermore, the effect of norms (both subjective and moral) on residents’ association with PLI was also analyzed.

The conceptual model, including the hypothesized relationship between variables, was established through relevant literature. The study extends the theory of planned behavior (TPB) through a place-based approach in young residents’ household waste RIs. The proposed conceptual model also replaced the position of norms (subjective and moral) as antecedents to PLI in the proposed extended and modified TPB model. Partial least square structural equation modeling (PLS-SEM) has been used for the statistical analysis of the data. The questionnaires were distributed digitally. The convenience sampling approach was adopted for collecting data.

The results tenably billed the inclusion of placed-based approach in the TPB and norms (subjective and moral) in predicting PLI of young residents. All the alternative hypotheses in the proposed model were accepted. The predictive power of RIs was 41.4%.

The research only considered the educated and financially opulent residents, among whom the waste disposal system was well established and may have led to favorable results. The study only limits to measuring intentions, and its organic nature opens vistas for future research studies where more variables could be agglutinated to achieve pronounced prediction power and also further measure actual recycling behavior and practice.

The study adds to pragmatic implications for local governments and municipalities where the waste collection apparatuses could capitalize on the findings to achieve efficiency in household waste collection and recycling.

With young generation of residents at the helm for forging a cleaner environment, the study motivates environmental enthusiasts and social scientists to better understand household waste RIs. The study will help young generation to become more sensitized towards the environment by making green changes in daily disposal habits.

The study explored two prospects. First, PA (place dependence and place identity) was added as an external variable and precedent to RIs, and second, the norms (both subjective and moral) were taken as antecedents to place identity.

This study surveyed users and librarians who have been transforming libraries into a complex cultural space by reflecting the trends of the times, investigated and analyzed various status of complex cultural spaces, including perceptional differences among different groups and made an attempt to present a direction for the diversification of library's role.

This study analyzes the difference between the level of importance and the level of satisfaction for the operational style and use of complex cultural spaces, current status and use of programs and services of libraries as well as the perceptual difference between librarians and users. In order to do so, opinions were collected from librarians who operate complex cultural spaces and users who use the spaces.

First, the study compared to see if there is a difference between the preferred complex cultural space of libraries and the type of complex cultural space actually provided by libraries. Libraries do not only have data spaces but also made education space, performance space, exhibition space, rest space, community space and experience space available for users. Users were found to more frequently use exhibition space, performance space, rest space and education space among other spaces whereas the utilization rate of community space and experience space was identified to be significantly low. Second, this study also compared to see if there is a difference between users' preference for the type of programs operated by library's complex cultural spaces and the actual programs offered. The comparison of perceived differences between librarians who are the operators of the programs and users who participate in the programs is to compare and improve the consistency of supply and demand. As a result, it was found that the supply and demand for educational programs were most consistent, which would lead to higher participation rate and enhanced operational performance and satisfaction with libraries. Lastly, investigations were carried out to see whether there is a difference in the levels of importance and satisfaction for the operation of complex cultural spaces and perceptional difference between libraries and users. Comprehensively analyzing the results, in the first quadrant of “Keep the Good Work,” librarians showed a higher level of perception compared to users. In particular, librarians were found to have a different perception towards programs (contents) compared to users. Based on such results, a systematic program must be considered when planning for library programs in order to increase uses' satisfaction. In addition, in the second quadrant of “Concentrate Here,” with a high importance and low satisfaction, users showed a high level of importance for programs (contents) whereas libraries identified accessibility as a more important factor, indicating a big perceptional difference between users and librarians.

This study examines the differences between the opinions of operators who create complex cultural spaces and operate programs in the spaces and the opinions of users who participate in the spaces and programs, and it was found that no other studies in Korea and overseas have done the same yet. In addition, it carries a significant meaning in that it does not only investigate the perceptions towards importance and satisfaction, but also suggests improvement directions based on the perceptional differences between users and librarians. In other words, librarians who implement policies at actual sites seem to be able to reflect the results of this study and decide the operation direction of the library.

Users also participate in various services and programs that library's complex cultural spaces offer and enjoy their cultural life. It carries a significant meaning in that the study evaluates the importance-satisfaction of factors affecting the use of complex cultural spaces of libraries by examining perceptions of those users who actually have the experience of using library's complex cultural spaces when the number of libraries attempting to transform into a multicultural space increases. The study made an attempt to enrich the knowledge and understanding of users' visit/use of libraries, suggest improvement directions and factors to focus. Continuous efforts and additional studies must be made in order to vitalize library's complex cultural spaces and secure the position of a cultural facility as well as a communication space located at the heart of regional society.

From the quantum game perspective, this paper aims to study a green product optimal pricing problem of the dual-channel supply chain under the cooperation of the retailer and manufacturer to reduce carbon emissions.

The decentralized and centralized decision-making optimal prices and profits are obtained by establishing the classical and quantum game models. Then the classical game and quantum game are compared.

When the quantum entanglement is greater than 0, the selling prices of the quantum model are higher than the classical model. Through theoretical research and numerical analysis results, centralized decision-making is more economical and efficient than decentralized decision-making. Publicity and education on carbon emission reduction for consumers will help consumers accept carbon emission reduction products with slightly higher prices. When the emission reduction increases too fast, the cost of emission reduction will form a significant burden and affect the profits of manufacturers and supply chain systems.

From the perspective of the quantum game, the author explores the optimal prices of green product and compares them with the classical game.

The purpose of this study was to conduct a comprehensive analysis of the impact and its mechanism on the transfer of agricultural labor forces in the surrounding areas resulting from the establishment of a natural reserve, which holds great significance. The significance of this analysis is on the ecological protection of the natural reserve and the coordinated development of local social economy.

This study first performs an analysis on the impact and its mechanism on the establishment of the natural reserve on the transfer of agricultural labor forces from two aspects, which are push and pull factors. Then, based on county panel data in Jiangxi Province from 1995 to 2012, this study builds a generalized difference-in-difference model and performs an empirical study on the impact, heterogeneity and its mechanism on the establishment of the natural reserve on the transfer of agricultural labor forces.

The empirical analysis reveals that the establishment of natural reserves would significantly promote the transfer of agricultural labor forces to non-agricultural sectors. The robust test and placebo test with changed estimation methods verify the robust of the result. The result passes the parallel trend test and shows that the impact is most significant within one year after the implementation of the policy. From the mechanism analysis, the impact mainly comes from the “push” effect brought by the restricted development of agricultural production and primary industry on agricultural labor forces, and the “pull” effect brought by the development of local tertiary industry.

The conclusion of this study enriches the understanding of the internal mechanism between the establishment of natural reserves and the transfer of agricultural labor forces from the push and pull factors, and can provide reference for formulating policies to promote the coordinated development of natural reserve construction and regional social economy.

Research about tourism impacts is abundant. However, existing studies often investigate tourism impacts from residents’ and tourists’ perspectives. The study targeting students is absent. The students’ perception and evaluation of tourism impact must be investigated independently to have more insights into improving the current education curriculum, which covertly addresses the impacts. Therefore, this study aims to examine university students’ perception of tourism impacts as young tourists to provide implications for better teaching of such content in the future.

Vietnam was chosen as the context, and a mixed method was employed. First, free elicitation with 118 university students was carried out to identify the students’ perceived impacts (109 items, four categories). Second, structured surveys using the previously generated content with 243 and 224 university students were implemented to identify the latent structures of the impacts (3-4 factors per impact category).

Tourism impacts can be dually perceived. In other words, they can come in positive or negative forms or are directed toward the destinations or the residents. However, being positive or negative, or affecting the place or the people, tourism impacts have some general and universal elements concerning the economic, sociocultural and environmental ones. In addition, they have some specific and contextual aspects, such as cross-border marriages, child labor and economic autonomy loss.

Tourism impacts seen from the perspective of university students are relatable and valuable for tourism education. Educators in Vietnam should consider revising the current curriculum to address all the tourism impacts overtly.