Urbanization and risk preference in the People's Republic of China: A decomposition of the self-selection and assimilation effects

This paper argues that urbanization reshapes individual's risk preference by exerting self-selection and assimilation effects. Taking advantage of the unique hukou system in the People's Republic of China, we initiate a quasi-experiment method to elicit the two effects, employing the 2013-wave dataset of Chinese General Social Survey (CGSS). We find strong evidence supporting our two-effect theory and the magnitudes of both effects are sizable and near in scale. The assimilation effect reduces the migrant's risk aversion measurement by 0.606 while the self-selection effect reduces it by 0.715, on average. Overall, urbanization improves migrants' risk appetite, and mediated by this improvement, migrants are more likely to get engaged into the economic activities under uncertainty than their rural peers, as indicated by the evidence we have when applying the two-effect theory to investigate how households decide on risky financial asset investment

Graduate Student Source Analysis Method Based on Annual Report Data of Degree-Granting Information

Based on the annual data of degree-granting information accumulated by degree-granting institutions, this paper analyzes the storage structure of the database, excavates the critical information in the degree-granting information data structure, and puts forward a multi-dimensional graduate source analysis method, such as first-choice admission rate, the admission rate of recommended students, pre-graduation institution type, residential registration origin and types of colleges and universities transferring students. The limitation of using a single index of first choice admission rate to evaluate the quality of student source is improved

Rubin's conjecture on local units in the anticyclotomic tower at inert primes: p=3p=3 case

We prove Rubin's conjecture on the structure of local units in the anticyclotomic $\mathbb{Z}_p$-extension of unramified quadratic extension of $\mathbb{Q}_p$ in $p=3$ case by extending Burungale-Kobayashi-Ota's work