The aim of the paper is to estimate cost efficiency and its determinants of the Czech and Slovak commercial banks within the period of 2005–2015. In this paper two-stage Data Envelopment Analysis (DEA) is used. In the first stage, I estimate the relative cost efficiency applying the inputoriented model with variable return to scale and find that the Czech banks were more cost efficient than the Slovak banks. The main reason of cost inefficiency is the excess of clients’ deposits in the banks’ balance sheet. In the second stage, I use the panel data analysis and estimate the determinants of cost efficiency in the two countries. I choose 8 bank-specific and macroeconomic factors that influence cost efficiency. The results show that the larger banks with higher liquidity risk and with a lower value of the net interest margin were more efficient. It confirms the reason of ineffi ciency determined from the DEA model. Banks were highly cost efficient during the economic expansion with a lower value of the inflation rate.

中文翻译：

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使用两阶段数据包络分析的捷克和斯洛伐克银行业成本效率衡量

本文的目的是估计2005-2015年期间捷克和斯洛伐克商业银行的成本效率及其决定因素。本文使用两阶段数据包络分析（DEA）。在第一阶段，我估计使用具有可变规模收益的投入型模型的相对成本效率，并发现捷克银行比斯洛伐克银行更具成本效益。成本低效的主要原因是客户在银行资产负债表中的存款过多。在第二阶段中，我使用面板数据分析并估算了两国成本效率的决定因素。我选择了8个影响成本效率的银行特定因素和宏观经济因素。结果表明，具有较高流动性风险和较低净息差价值的大型银行效率更高。它证实了由DEA模型确定的效率低下的原因。银行在经济扩张期间具有很高的成本效益，而通货膨胀率的值较低。