Nisrul Irawati

There are two sectors of banks operating in Indonesia, namely Sharia banks and conventional banks. Improving performance is important in maintaining public confidence in the bank. Efficiency is one of the parameters to measure the performance of Sharia banks. This study measures the comparative level of technical efficiency of Sharia commercial banks and conventional banks by Stochastic Frontier Analysis method during 2011–2015 period by using 10 samples of Sharia commercial banks and conventional banks. Input variables in this study are total deposits, operational costs, and other operational costs. Total financing is an output variable. The results of this study show that total deposits and operational costs have a positive and significant impact on total financing in Sharia and conventional banks. The average score of the technical efficiency of Sharia commercial banks during the period observed is 0.84 and conventional banks is 0.85.

Common market anomalies tested in developed markets have been considered adequate to explain behavior there. However, the different characteristics in emerging markets such as Indonesia make traditional asset pricing models inadequate. Furthermore, this study highlights the importance of integrating company fundamentals and investor sentiment. This study enriches the asset pricing method in Indonesia and supports the theory of market signals and anomalies. This study analyzes the moderating role of investor sentiment on the relationship between profitability premium, investment premium, and stock returns in one of the emerging markets, Indonesia. The study uses panel data from 93 companies in Indonesia from 2013 to 2023. Portfolio construction with the five-factor model is used. The analysis method used is moderated regression analysis or interaction testing. The study results show that profitability premium and excess return interact significantly with investor sentiment at the 1% level, so investment premium and excess return interact significantly with investor sentiment at the 1% level. This study shows that investor sentiment plays a role in strengthening the premiums for profitability and investment. The findings of this study indicate that considering a company’s financial condition and sentiment level is essential for investors and investment managers in implementing long-term stock investment analysis strategies in emerging markets such as Indonesia. This study can support market stability policies, such as tighter supervision, when negative sentiment has the potential to cause a decline in stock prices that is disproportionate to fundamentals.

Acknowledgments
The authors would like to thank the Indonesian Capital Market for providing data supporting this study’s results. Thanks also to the promoter, co-promoter, and reviewer for their suggestions and input, which were very helpful in preparing this article. In addition, the family has provided prayers and patience in supporting the author in carrying out this research. This research was supported by funding from Universitas Syiah Kuala.