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To develop the economy on the premise of protecting the environment and apply modern emerging technologies such as big data to rural work, China put forward the rural revitalization strategy. The focus of rural revitalization is to promote green technologies, such as big data and artificial intelligence, turn rich green resources into green capital, and let these technologies drive people to develop green lifestyles, build beautiful China and realize the sustainable development of the Chinese nation. To measure the level of rural green development in Hunan Province, this paper selects 14 indicators from four aspects: green economy, green investment, green utilization and green security. The entropy method is used to give weight to each index of the evaluation system of rural green development level in Hunan Province, and comprehensive evaluation and classification measurement are carried out. The research in this paper enriches the empirical data of rural green development, and also provides ideas for China and other countries to use emerging technologies to develop green economy, which has important reference significance. [ABSTRACT FROM AUTHOR]

Gift expenses escalated in China in the last decades with rapid economic growth and account for a substantial share of household expenditures. Rising gift expenses signal good friendships and facilitate reciprocity, which may enhance one's subjective wellbeing. However, increasing gift giving may also exacerbate the financial burden of households and thus has adverse welfare implications. This study examines how escalating gift expenses impact individuals' subjective happiness by using data from the China Family Panel Studies. Findings suggest that an increase in the ratio of gift expenses to household income can significantly decrease one's subjective happiness by crowding out other consumption items and harming psychological health. Overall, this study offers new insights into informal social networks maintained by gift giving, which may adversely affect household welfare. [ABSTRACT FROM AUTHOR]