Purpose: This research aimed to find the effect of cluster techniques in determining stock selection to maximize return and minimize risk in the stock market. Research Methodology: The methodology consists of two of several algorithmic approaches of the clustering method to find hidden patterns in a group of datasets, i.e., Partitioning clusters (k-means) defined by the dataset object and its central area, and hierarchical clusters that group data through varying scales to be implemented into cluster trees or dendrogram. Dataset summary analysis of the fundamental ratio of stocks in the study was obtained from IDX stock data. Results: This study's classification has been obtained that consists of three zones: green, blue and red zone. The significance obtained provides an alternative form of stock categorization, creating an investment decision support system based on Cluster Analysis, the search for correlations and patterns between ratios of the Financial Statements as complementary tools of Investment Risk Management. Limitations: This research uses only two clustering algorithm methods to analyze the effect of clustering in maximizing return and minimizing risk and only used variables of financial reports for the company listed on the Indonesia Stock Exchange. Contribution: The risk management portfolio is a crucial part of being analyzed for investors and management to improve financial performance. As a complement to decision support, the risk management systems have to be analyzed based on cluster analysis and subsequent data mining to know the potential stock valuation in the market.

Purpose: This study examined the influence of perceived usefulness, ease of use, and income on interest in using paylater services. Research Methodology: The population in this study was the people of DKI Jakarta who know the Shopee Paylater service. The research sample was obtained using a purposive sampling method, with an affordable population calculation obtained 400 samples. The research method used was a quantitative method with multiple regression models. Data were primary data obtained from distributing questionnaires. Results: The results of the study partially show that perceived usefulness has a positive and significant influence on the interest of using paylater services; perceived ease of use has no positive and significant influence on interest of using paylater services; and income has a positive and significant influence on interest of using paylater services. Limitations: It is necessary to investigate other variables that can affect interest in using paylater services. Contribution: E-commerce companies should develop factors that influence consumer interest in using paylater and increase consumer knowledge before using paylater services. Keywords: Perceived Usefulness, Perceived Ease of Use, Income, Intention of Using Paylater

Purpose: This study aimed to analyze the influence of the audit committee's independence and expertise on real earnings management by using audit quality as the moderating variable and firm size, leverage, and profitability as control variables. Research Methodology: Real earnings management was processed by Roychowdhury’s model and it used the abnormal value of operating cash flow, discretionary expenses, and production costs. This study used secondary data from annual reports of non-financial companies listed on the Indonesia Stock Exchange for the period 2017-2019 and the total was 516 companies. This study used panel data regression and was processed by Stata. Results: This study proves that audit committee independence and leverage have a significant negative effect on real earnings management through discretionary expenses and audit quality cannot moderate the relationship between audit committee independence and audit committee expertise on real earnings management. Limitation: The study used audit quality as moderating variable. However, the results cannot prove that audit quality is able to affect real earnings management. Contribution: The results obtained can be used for investors' and creditors' consideration when making investment or loans decisions and can be references for further research.