nep-cna New Economics Papers
on China
Issue of 2008‒11‒04
two papers chosen by
Zheng Fang
Ohio State University

  1. Land Tenure Arrangements and Rural-Urban Migration in China By Katrina Mullan; Pauline Grosjean; Andreas Kontoleon
  2. A missing composite covariate in survival analysis: a case study of the Chinese Longitudinal Health and Longevity Survey By Francesco Lagona; Zhen Zhang

  1. By: Katrina Mullan (University of Cambridge, Department of Land Economy); Pauline Grosjean (Department of Agricultural and Resource Economics, University of California); Andreas Kontoleon (University of Cambridge, Department of Land Economy)
    Abstract: This paper examines the impacts of the Chinese Household Responsibility System, which governs rural land tenure, on rural-urban migration. Migration in China has traditionally been limited by the hukou system of household registration, under which individuals who wish to change their place of residence must gain approval from government authorities. This system is currently being relaxed in an attempt to reduce inequalities between rural and urban areas. However, migration will not increase if additional constraints remain for potential migrants. Using a model of the relationship between land tenure arrangements and migration of household members, we examine whether those with greater tenure security and formal rental rights for agricultural or forest land are more likely to participate in labour markets outside the village. The finding that greater tenure security increases migration suggests that the current system of property rights, in which land is periodically reallocated, acts as a constraint on migration. This strengthens the case for further tenure reform for agricultural and forest land.
    Keywords: Land tenure security; land rental rights, rural-urban migration, China
    JEL: J61 O15 P32
    Date: 2008
  2. By: Francesco Lagona (Max Planck Institute for Demographic Research, Rostock, Germany); Zhen Zhang (Max Planck Institute for Demographic Research, Rostock, Germany)
    Abstract: We estimate a Cox proportional hazards model where one of the covariates measures the level of a subject´s cognitive functioning by grading the total score obtained by the subject on the items of a questionnaire. A case study is presented where the sample includes partial respondents, who did not answer some or all of the questionnaire items. The total score takes hence the form of an interval-censored variable and, as a result, the level of cognitive functioning is missing on some subjects. We handle partial respondents by taking a likelihood-based approach where survival time is jointly modelled with the censored total score and the size of the censoring interval. Parameter estimates are obtained by an E-M-type algorithm that essentially reduces to the iterative maximization of three complete log-likelihood functions derived from two augmented datasets with case weights, alternated with weights updating. This methodology is exploited to assess the Mini Mental State Examination index as a prognostic factor of survival in a sample of Chinese older adults.
    Keywords: China, health
    JEL: J1 Z0
    Date: 2008–09

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