CAJ | 학술논문

基于＂吉林城市环境改善项目＂的调查数据,本文利用Type Ⅱ Tobit模型分析了长春市和延吉市居民对于政府污水处理工程的支付意愿。所使用的Type Ⅱ Tobit模型能有效地解决调查数据中经常出现的样本选择偏差问题,从而能比既有文献中常用的OLS和Tobit模型更好地估计支付意愿值。此外,还研究了公共物品供给的模仿行为与收入水平的关系。对于所有收入水平的被调查者的回归结果显示出微弱的模仿行为,而按照收入水平划分后发现高收入和低收入群体的模仿行为显著高于中等收入群体。
기우＂길림성시배경개선항목＂적조사수거,본문이용Type Ⅱ Tobit모형분석료장춘시화연길시거민대우정부오수처리공정적지부의원。소사용적Type Ⅱ Tobit모형능유효지해결조사수거중경상출현적양본선택편차문제,종이능비기유문헌중상용적OLS화Tobit모형경호지고계지부의원치。차외,환연구료공공물품공급적모방행위여수입수평적관계。대우소유수입수평적피조사자적회귀결과현시출미약적모방행위,이안조수입수평화분후발현고수입화저수입군체적모방행위현저고우중등수입군체。
Employing Type II Tobit model to estimate the surveyed data of communities in Changchun and Yanji collected for Jilin Urban Infrastructure Development Project,this essay analyzes the willingness to pay for the wastewater treatment project.The problems of Data missing and sample selection often occur in surveyed data,which cannot be avoided in traditional OLS and standard Tobit model that are often used in the present literature.But Type II Tobit model can deal with sample selection bias effectively.Moreover,this essay analyzes the relationship between imitation behavior in public good provision and family income.A slight overall imitation behavior is detected when estimated on the entire data,and once the subjects are grouped by income level,a significant lower effect is found in mid-income respondents.