The demand for physician services - Evidence from a natural experiment
The demand for physician services - Evidence from a natural experiment
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DOI：
10.1016/s0167-6296(03)00047-x
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发表时间：
2003-11-01
影响因子：
3.5
通讯作者：
Brasseur, C
中科院分区：
文献类型：
--
作者：
Cockx, B;Brasseur, C
本研究利用在比利时的自然实验，以估计对医生服务的需求的共同负担增加的影响。它展示了如何将价格效应的差中差（DD）估计分解为由共同平均价格比例增长（收入效应）和相对价格变化（替代效应）引起的效应。统一比例价格上涨的价格弹性相对较小（男子为-0.13，妇女为-0.03）。替代效应很大，特别是对妇女，但估计不准确。尽管价格大幅上涨，但改革的效率增益（如果有的话）是有限的。(C)2003 Elsevier B. V.保留所有权利。
This study exploits a natural experiment in Belgium to estimate the effect of copayment increases on the demand for physician services. It shows how a differences-in-differences (DD) estimator of the price effects can be decomposed into effects induced by the common average proportional price increase (income effects) and by the change in relative prices (substitution effects). The price elasticity of a uniform proportional price increase is relatively small (-0.13 for men and -0.03 for women). Substitution effects are large, especially for women, but imprecisely estimated. Despite the substantial price increases, the efficiency gain of the reform, if any, is modest. (C) 2003 Elsevier B.V. All rights reserved.