Purpose: This study aimed at investigating the performance of a value investing strategy called the “Magic Formula”, introduced by Joel Greenblatt (2006), applied to the Indonesian Stock Exchange. Magic Formula is a simple stock selection strategy by ranking stocks based on calculating Return on Capital and Earnings Yield. Methodology: First, this study examined stocks listed on the Indonesia Stock Exchange represented by the Kompas 100 index measuring the price performance of 100 stocks that have good liquidity and large market capitalization. This step was followed by eliminating finance stocks because they have different debt postures which will affect the calculation in the next stage. The next step was to choose the top thirty stocks from the combined rank to become a portfolio. Portfolio rebalancing is conducted annually. Sharpe, Treynor, and Jensen’s Alpha analysis were used to measure returns adjusted for risk. Results: This study showed that using return on capital and earnings yields can produce higher average returns than the market index from April 2015 to April 2019. The Magic Formula portfolio yields an average return of 12.76% and the market produces average returns of 6.89% during the period under test. Limitations: The obtained data were derived from 5 years-data of the Indonesia Stock Market. in order to neglect the Efficient Market Hypothesis, the collection of wider data was required. besides, the result of this study is unusable to test the Efficient Market Hypothesis at weak or strong level. Contribution: This study contributes empirical evidence that the Magic Formula is a solid investment model especially considering its simplicity. Magic Formula can be used as an early stage in the process of selecting a company to invest in.

Purpose: This research aims to examine the effect of corporate social responsibility (CSR) on tax aggressiveness. Methodology: The type and source of data in this study is quantitative research, with data sources through the web of BUMN companies. The data used in this study are aggressiveness tax and CSR. sample determination using porposive sampling method and produce 35 samples of BUMN companies. The reason for using a BUMN company is because it is the biggest contributor in taxation. The analysis used in this study is multiple linear regression analysis using SPSS 26 software. Results: The results of the study show that CSR with a net fiscal income of more than 5% has an influence on tax aggressiveness. Meanwhile, CSR with a net fiscal income of less than 5% has no effect on tax aggressiveness Limitations: This research was only conducted by BUMN companies from 2015 to 2019. Contribution: This exploration has contributed to the enrichment of aspects of the financial accounting literature, particularly on the taxation of BUMN companies.

Purpose: This study aims to examine and prove the influence between environmental performance and accounting conservatism on company value in manufacturing companies listed on the Indonesia Stock Exchange (IDX) for the 2016-2020 period. Methodology: Manufacturing Companies listed on the Indonesia Stock Exchange became the population in this study. Purposive sampling was used to determine samples and obtained as many as 50 companies that met the criteria. Multiple linear regression analysis tests the model and proves the proposed hypothesis. Data is processed with the help of Statistic tools. Results: The test result is that environmental performance can affect the value of the company and accounting conservatism cannot be proven to affect the value of the company Limitations: The limitations in this study prove that accounting conservatism variables measured by earnings / Accrual measure have no influence on company value, subsequent research can use other measurements for accounting conservatism so that it can prove its effect Contribution: The results of this study can contribute to investors' decision-making to consider aspects of the company's responsibility to the surrounding environment for its operating activities.