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基于两阶段非期望DEA模型的证券公司效率评估

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证券公司的经营效率直接影响我国资本市场效率的整体水平和市场资源配置的有效性,如何对我国证券公司的经营效率进行科学、合理的衡量,是亟待解决的现实课题.基于此,本文将证券公司经营活动划分为创收阶段与盈利阶段两阶段,构建考虑非期望指标的两阶段非期望网络乘积型模型,并以我国24家中国上市证券公司作为样本进行分析.研究结果发现:考察期间我国证券公司效率普遍较低,绝大多数公司没有在最优规模上生产,各证券公司的经营效率在不同年份里出现了严重的两极分化,造成DEA无效的主要原因在于第一阶段的投入冗余.
Efficiency Evaluation of Securities Companies Based on Two-Stage Data Envelopment Analysis for Undesired Indicators
Securities companies play an important function in stabilizing the capital market,leading the capital market value judging standard,and guaranteeing the reasonable allocation of market resources,etc.The good or bad of its operating efficiency directly affects the overall level of China's capital market efficiency and the effectiveness of mar-ket resource allocation,and how to carry out a scientific and reasonable measurement of China's securities company's operating efficiency is a realistic topic that needs to be solved urgently.Based on this,this paper divides the operating activities of securities companies into two stages:the revenue-generating stage and the profit-making stage,and constructs a two-stage non-expectation network product-type model that considers non-expectation indicators.This paper analyzes 24 Chinese listed securities companies as sample data,and finds that:the efficiency of China's securi-ties companies during the period under investigation is generally relatively low,the vast majority of companies do not produce on the optimal scale,and the operating efficiency of each securities company is seriously polarized in different years,which is the main reason for the ineffectiveness of the DEA is that Input redundancy in the first stage.This indi-cates that securities companies cannot rely solely on expanding capital and business scale to improve operational effi-ciency,and must be based on the control of resources and the scientific allocation of costs and expenses,which in turn improves the input-output efficiency of the enterprise.

Efficiency of Securities CompaniesTwo-StageData Envelopment Analysis ModelUnexpected Indicators

薛俭、孙思瑶、李德强

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陕西科技大学经济与管理学院 西安 710021

证券公司效率 两阶段 DEA模型 非期望指标

2024

中国证券期货
北京喀斯特经济评介中心 北京亚布力企业发展策划有限公司

中国证券期货

ISSN:1008-0651
年,卷(期):2024.(6)