The strictest water resources management policy plays a critical role in response to the challenge of water shortage, water security, and sustainable water development in China. Despite the varied analyses of the strictest water resources management policy, the relations between the strictest water resources management policy and water use efficiency remain under-researched. This study uses an interval event-analysis method to assess the strictest water resources management policy’s impact on water use efficiency in China based on data from 2007 to 2020. In addition, the study breaks down water use efficiency into eight indicators and divides the strictest water management policy into “pre-, middle, and post-” phases. The research results show the strictest water resources management policy has a significant positive effect on water use efficiency. Further research shows the total water consumption control system and water efficiency control system have the most significant effect. The strictest water resources management policy has a lasting impact on water use efficiency. This study contributes to the global knowledge body of water governance and provides a reference value for water policy decision-making and optimization in other countries.

Based on national time series data from 1990 to 2020 in China, the study quantified the index and analyzed the relationship among criminal cases, relative deprivation, and absolute deprivation by using a structural vector autoregressive (SVAR) model. The results showed that the change in absolute deprivation had no significant influence on overall criminal cases, while the expansion of relative deprivation promoted an increase in criminal cases. Meanwhile, relative deprivation and absolute deprivation have disparate effects on different types of criminal cases. On the one hand, both absolute deprivation and relative deprivation have a positive effect on violent crimes. On the other hand, the impact of absolute deprivation on property crimes is not significant. Due to the large proportion of property crimes in the total criminal cases, the reduction of absolute deprivation has a limited inhibiting effect on total criminal offenses in China’s current situation.