Accounting for caseloads in the efficiency analysis of courts of justice
提出一种新方法，将法院效率分解为结案率和案件工作量充足因子，相比将案件工作量作为输入的传统方法，具有更强的区分能力和更详细的低效来源信息。
Many reported applications of data envelopment analysis to courts of justice raise the issue of treatment of caseloads, consisting of the backlog of yet unresolved cases transferred from the previous year and new incoming cases. A common approach, which has some known drawbacks, is to incorporate caseloads as inputs in the model. In this paper, we propose a different methodology addressing this issue. We first assess the efficiency of courts disregarding caseloads and then decompose it into the product of two measures. One is the resolution rate that shows the proportion of caseload (capped by the boundaries of the technology) resolved by the court. The second is the caseload sufficiency factor that reflects the potentially limiting effect of the caseload on the ability of the court to achieve its efficient target. This approach allows straightforward extensions to arbitrary production technologies and different efficiency measures. We illustrate the proposed methodology by an application to a sample of Greek county courts. We show that the proposed methodology has significantly higher discriminating power on court efficiency than the model with caseloads as inputs. It also provides more detailed information about the sources of inefficiency of courts than the latter common approach. • We develop a methodology accounting for caseloads in efficiency analysis of courts. • Output efficiency is the product of resolution rate and caseload sufficiency factor. • Significantly better discriminating power compared to treating caseloads as inputs. • More detailed information about the sources of inefficiency of courts. • We illustrate this methodology by application to Greek county courts.