在不确定性下的最佳规模大小和平均利效率:一个机会受限的DEA方法
Leila Parhizkar Miyandehi1, Alireza Amirteimoori1, Sohrab Kordrostami2
1Department of Applied Mathematics, Rasht Branch, Islamic Azad University, Rasht, Iran.
本研究引入了一种用于评估业务绩效的新平均利效率指标. 这种增强的指标改进了现有的方法,并对随机环境进行了计算,为运营利能力提供了更准确的见解.
科学领域:
- 运营研究 运营研究
- 计量经济学 计量经济学
- 管理科学 管理科学
背景情况:
- 在已知输入/输出成本的情况下,获利效率评估对于了解单位性能至关重要.
- 现有的效率措施可能缺乏复杂,现实世界的场景所需的精度.
研究的目的:
- 基于最大化平均利效率的最佳规模尺寸的新定义.
- 与现有方法相比,引入一种更准确的经济效率衡量方法.
- 在随机环境中开发计算利效率的模型.
主要方法:
- 通过最大化平均利效率来定义最佳规模大小.
- 利效率的平均指标的发展.
- 制订用于利效率计算的随机模型.
- 对伊朗邮政区的实证应用.
主要成果:
- 利效率的平均指标被证明相当于凸空间内的恒定回报的利效率,以扩展技术.
- 随机模型通过解决输入/输出计算错误来提高利模型的适用性.
- 提出的方法成功计算了伊朗邮政地区的平均利效率.
结论:
- 新的平均利效率指标可以更准确地评估单位业绩.
- 开发的随机模型在实际环境中提高了利效率评估的稳定性.
- 经验研究证明了在现实世界中提出的方法的实用性.
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