The elasticity of demand for self-purchased drugs: based on the survey data of 14 431 residents in Heilongjiang province_Chinese Journal of Evidence-Based Medicine

Authors：

ZHOU Liangru ¹ ,  ZHANG Xin ¹ , ZHENG Xue ² , LIU Guoxiang ¹ , GUO Sirou ¹ , SUN Chengyao ¹

1. School of Public Health, Harbin Medical University, Harbin, 150000, P.R.China;
2. Department of Quality Control, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, P.R.China;

Corresponding author：

ZHANG Xin, Email: zhangxinzhx0801@126.com

Keywords：

Self-purchase medicine; Self-price elasticity; Income elasticity; Cross elasticity; Heilongjiang; Real world study

DOI：

10.7507/1672-2531.201807142

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Objectives To estimate the elasticity of demand price elasticity and demand income of urban and rural residents’ self-purchase drug use and expenditure, and to analyze the sensitivity of self-purchase drug use and expenditure to the price change of drug purchase, resident income and medical institutions. Methods The data were derived from the fifth health service survey in Heilongjiang province in 2013. The Probit model was used to obtain the partial regression coefficients of the control variables in the regression model, and the demand elasticity of the self-purchase drug use was further measured by the partial regression coefficients, and the demand elasticity of self-purchase expenditure was obtained by the logarithmic regression model. Results A total of 5 289 households (14 431 persons) were included. The demand for self-purchase drug use of Heilongjiang province was 0.374 (P=0.000), the cross-price elasticity of self-purchase drug utilization and service was –0.184 (P=0.000), and the income elasticity was 0.083 (P=0.172). Since the price elasticity of the self-purchase drug expenditure was 0.675 (P=0.000), the income elasticity was 0.144 (P=0.069). Conclusions The use of self-purchased drugs in Heilongjiang province lacks price elasticity and is a necessity. There is a complementary relationship between the use of self-purchase drugs and medical institutions.

Citation： ZHOU Liangru, ZHANG Xin, ZHENG Xue, LIU Guoxiang, GUO Sirou, SUN Chengyao. The elasticity of demand for self-purchased drugs: based on the survey data of 14 431 residents in Heilongjiang province. Chinese Journal of Evidence-Based Medicine, 2018, 18(11): 1239-1244. doi: 10.7507/1672-2531.201807142 Copy

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1. 郑雪, 刘国祥, 纪门, 等. 中国卫生服务需求弹性研究的系统评价. 中国循证医学杂志, 2017, 17(5): 564-572.
2. Zhou Z, Su Y, Gao J, et al. New estimates of elasticity of demand for healthcare in rural China. Health Policy, 2011, 103(2): 255-265.
3. 李涛, 陈斌开. 家庭固定资产、财富效应与居民消费: 来自中国城镇家庭的经验证据. 经济研究, 2014, (3): 62-75.
4. Liu GG, Wu H, Li M, et al. Chinese time trade-off values for EQ-5D health states. Value Health, 2014, 17(5): 597-604.
5. 陈文. 卫生经济学. 北京: 人民卫生出版社, 2013: 87.
6. Manning WG, Newhouse JP, Duan N, et al. Health insurance and the demand for medical care: evidence from a randomized experiment. Am Econ Rev, 1987, 77(3): 251-277.
7. Mocan HN. The demand for medical care in urban China. World Dev, 2004, 32(2): 289-304.
8. 朱宏. 我国药品需求弹性的研究. 中国药房, 2004, 15(11): 653-655.
9. Grossman M. On the concept of health capital and the demand for health. J Polit Econ, 1972, 80(2): 223-255.
10. 吕学静. 非理性就医的深层原因及防范措施. 中国医疗保险, 2012, 6(6): 15-16.
11. 李亚楠, 陈在余, 马爱霞, 等. 新型农村合作医疗制度对农民就医决策的影响: 基于" 中国健康与营养调查”数据的双重差分估计. 宁夏农林科技, 2012, 53(11): 164-166.
12. 李金梅. 医改前后患者对黑龙江省就诊医疗机构的评价变化. 齐齐哈尔医学院学报, 2015, (6): 866-867.
13. 白井双, 吴淑华. 急性冠状动脉综合征患者决策延迟的影响因素分析. 中国实用护理杂志, 2015, 31(15): 1168-1170.

Chinese Journal of Evidence-Based Medicine

The elasticity of demand for self-purchased drugs: based on the survey data of 14 431 residents in Heilongjiang province

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