[1] 姜雪梅,徐晋涛. 东北内蒙古重点国有林区职工收入变化分析[J]. 林业经济,2011(1):25-29.

JIANG Xuemei,XU Jintao. Analysis on the income change of workers in the key state-owned forest region of Northeast and Inner Mongolia[J]. For Econ, 2011(1):25-29.
[2] 徐晋涛,姜雪梅,季永杰. 重点国有林区改革与发展趋势的实证分析[J]. 林业经济,2006(1):10-15.

XU Jintao,JIANG Xuemei,JI Yongjie. Empirical study of reform and development in the key state-owned forest area[J]. For Econ, 2006(1):10-15.
[3]

BENNETT M T, JIANG Xuemei, XU Jintao. Household income growth, diversification and the implicit costs of reform:the case of China’s state forest sector[R/OL].(2008-01-31)[2015-08-20]. 

BENNETT M T, JIANG Xuemei, XU Jintao. Household income growth, diversification and the implicit costs of reform:the case of China’s state forest sector[R/OL].(2008-01-31)[2015-08-20]. 
[4] 张海鹏. 重点国有林区职工家庭收入差距及其变化实证分析[J]. 林业经济,2013(6):90-94.

ZHANG Haipeng. The empirically analyses of the gaps and their variance to the staff households' incomes in the state-owned forest districts[J]. For Econ, 2013(6):90-94.
[5] 王前进,穆志明. 深化国有森工企业改革的序曲:黑龙江省实行森林资源管护经营责任制试点情况的调查报告[J]. 林业经济,1999(5):7-15.

WANG Qianjin,MU Zhiming. The preliminary stage of state forestry enterprises reform:the report of household responsibility system in forestry management and protection in Heilongjiang Province[J]. For Econ, 1999(5):7-15.
[6]

JIANG Xuemei, GONG Peichen, BOSTEDT G, et al. Impacts of policy measures on the development of state-owned forests in northeast China:theoretical results and empirical evidence[J]. Environ Dev Econ, 2014, 19(1):74-91.
[7] 刘青,董桓维,张瑾瑾,等. 基于林区职工家庭视角的黑龙江省森林管护制度研究[J]. 林业资源管理,2013(4):23-26,32.

LIU Qing,DONG Hengwei,ZHANG Jinjin,et al. Study on forest management and protection system of Heilongjiang Province based on the perspective of forest farmer households[J]. For Resour Manage, 2013(4):23-26,32.
[8]

MINCER J. Investment in human capital and personal income distribution[J]. J Pol Econ, 1958, 66(4):281-302.
[9] 高梦滔,姚洋. 健康风险冲击对农户收入的影响[J]. 经济研究,2005(12):15-25.

GAO Mengtao,YAO Yang. Health shocks and farmers' income capabilities[J]. Econ Res J, 2005(12):15-25.
[10]

BARRO R J, LEE J W. International measure of schooling years and schooling quality[J]. Am Econ Rev, 1996, 86(2):218-223.
[11] 严善平. 人力资本、制度与工资差别:对大城市二元劳动力市场的实证分析[J]. 管理世界, 2007(6):4-13.

YAN Shanping. Human capital, systems and differences in wages:a case study on the dual labor-markets in large cities[J]. Manage World, 2007(6):4-13.
[12] 朱洪革, 李海玲, 石小亮. 山上山下职工家庭收入特征及影响因素分析:基于黑龙江省重点国有林区的调查数据[J]. 林业经济, 2014(5):20-25.

ZHU Hongge, LI Hailing, SHI Xiaoliang. Income characteristic and determinants of worker households living on mountain and living under mountain in key national forest areas[J]. For Econ, 2014(5):20-25.
[13]

HECKMAN J J. Sample selection bias as a specification error[J]. Appl Econ, 2013, 31(1):129-137.
[14]

HAUSMAN J A, WISE D A. Attrition bias in experimental and panel data:the gary income maintenance experiment[J]. Econometrica, 1979, 47(2):455-473.
[15]

WOOLDRIDGE J M. Selection corrections for panel data models under conditional mean independence assumptions[J]. J Econ, 1995, 68(1):115-132.
[16]

MOFFIT R, FITZGERALD J, GOTTSCHALK P. Sample attrition in panel data:The role of selection on observables[J]. Annales dEconomie et de Statistique, 1999, 55(55/56):129-152.