中国农村家庭脆弱性的测量与分解——基于CFPS面板数据的实证分析
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| Title | Measurement and Decomposition of Household's Vulnerability in Rural China——Empirical Analysis Based on Panel Data of CFPS
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| 作者 | 杨文 孙蚌珠 王学龙 |
| Author | Yang Wen,Sun Bangzhu and Wang Xuelong |
| 作者单位 | 北京大学社会经济与文化研究中心，北海道大学经济学部 |
| Organization | Institute of Social Economy and Culture, Peking University; Department of Economics, Hokkaido University |
| 作者Email | jackyangwen@pku.edu.cn |
| 中文关键词 | 脆弱性 协同性风险 异质性风险 社会资本 |
| Key Words | Vulnerability; Covariant Risk; Idiosyncratic Risk; Social Capital |
| 内容提要 | 脆弱性能将家庭消费的不平等性和波动性相结合以反映家庭的福利水平。对脆弱性的测量与分解有助于探索家庭的福利水平及其影响因素。在理论层面上，本文在效用理论基础上对脆弱性进行了定义并对其分解以反映消费的不平等性和波动性。在实证分析层面上，本文使用CFPS数据对中国农村家庭脆弱性进行量化与分解。量化结果表明多数农村家庭是脆弱的；分解结果发现相对于村间不平等，村内不平等是脆弱性的主要部分，而由各种风险导致的脆弱性中，不可解释风险是主要来源。家庭脆弱性及五个分解部分对家庭特征集合变量的OLS回归结果的重要发现是:一个农村家庭规模越大，则其遭受脆弱性的可能性越小；一个家庭拥有的社会资本越多，则其遭受脆弱性的可能性也越小。这两个结论较好地解释了中国农村倾向于组建大家庭和亲友礼仪活动往来频繁的现象。 |
| Abstract | Vulnerability can combine inequality with volatility of household's consumption to reflect household's welfare level. Measurement and decomposition of vulnerability is helpful to explore household's welfare level and influencing factors. Theoretically, based on utility theory, this paper defines vulnerability, and further decomposes it to reflect inequality and volatility of household's consumption. Empirically, this paper uses CFPS data to measure and decompose household's vulnerability in rural China. The result of measurement shows that a majority of households in rural China are vulnerable, and decomposition finds that compared to inter-village inequality, intra-village inequality is the main part of vulnerability, and unexplained risk is the main resource of vulnerability among all the risks. Using household's vulnerability and its five decompositions to regress a set of household's variables by OLS method, this paper gets two important results. One is that the bigger a household size is, the less vulnerable the household is, and the other is that the more social capital a household possesses, the less vulnerable the household is. The two conclusions can effectively explain households in rural China tend to be big ones, and frequent ceremonial activities among relatives and friends. |
| 文章编号 | WP108 |
| 登载时间 | 2011-08-19 |
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