Performance evaluation of Chinese and foreign property insurance companies considering negative data: Based on the dynamic two-stage IBP-SBM model

In the insurance industry, performance evaluation is a crucial instrument for resource management, allocation, and industry development. Negative data, however, have received little attention in the present evaluation system and are considered an undesirable consequence of research evaluation. To fill this gap, this paper establishes an evaluation indicator system that includes negative data and proposes the dynamic two-stage improved base point slacks-based measure (IBP-SBM) model for handling negative data. The model fully considers the internal structure of the production process and the measurement of intermediate products, and obtains the system efficiency and stage efficiency in two steps. In order to verify the applicability of the model, we evaluate the performance of 48 Chinese and foreign property insurance companies over the period from 2018 to 2020 through the proposed model. The empirical results indicate that variations in the investment stage are primarily responsible for shifts in the overall efficiency of the property insurance industry. With this method, decision-making is aided by a wealth of information.