医生市场的供给和需求:澳大利亚全科医生服务的面板数据分析。

Ian McRae, James R G Butler
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引用次数: 12

摘要

要了解任何医生服务市场的趋势,有必要了解供需的本质,但很少有研究联合调查这些市场的供需。本研究使用汇总面板数据的全科医生(全科医生)服务在统计区域水平在澳大利亚跨越八年来估计全科医生服务的供需方程。模型的结构方程分别使用广义矩法(GMM (2SLS))的两阶段最小二乘公式的人口加权固定效应面板建模进行估计。[公式:见原文]的需求价格弹性估计值与其他研究具有可比性。GP密度对需求的直接影响虽然显著,但在接近垂直供应曲线的情况下几乎不重要。因此,供给的变化是由于曲线位置的变化,部分由时间趋势决定。通过将面板后模型预测与三年期间的实际市场结果进行比较,该模型得到了验证,并发现在重大政策变化期间提供了惊人的准确预测。这项研究证实,在探索医生服务市场的行为时,需要共同考虑供给和需求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Supply and demand in physician markets: a panel data analysis of GP services in Australia.

Supply and demand in physician markets: a panel data analysis of GP services in Australia.

Supply and demand in physician markets: a panel data analysis of GP services in Australia.

Supply and demand in physician markets: a panel data analysis of GP services in Australia.

To understand the trends in any physician services market it is necessary to understand the nature of both supply and demand, but few studies have jointly examined supply and demand in these markets. This study uses aggregate panel data on general practitioner (GP) services at the Statistical Local Area level in Australia spanning eight years to estimate supply and demand equations for GP services. The structural equations of the model are estimated separately using population-weighted fixed effects panel modelling with the two stage least squares formulation of the generalised method of moments approach (GMM (2SLS)). The estimated price elasticity of demand of [Formula: see text] is comparable with other studies. The direct impact of GP density on demand, while significant, proves almost immaterial in the context of near vertical supply curves. Supply changes are therefore due to shifts in the position of the curves, partly determined by a time trend. The model is validated by comparing post-panel model predictions with actual market outcomes over a period of three years and is found to provide surprisingly accurate projections over a period of significant policy change. The study confirms the need to jointly consider supply and demand in exploring the behaviour of physician services markets.

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