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This study aims to analyze inventory control of catfish seeds at ABC Company by comparing the conventional inventory method represented by the Economic Order Quantity (EOQ) approach and the Just In Time (JIT) system in order to improve cost efficiency. This research employed a descriptive quantitative approach using a case study design. Data were collected through direct observation, semi-structured interviews with company management, and documentation of inventory and cost records for the 2024 operational period. The analysis method involved calculating optimal order quantities, ordering frequency, delivery frequency, and total inventory costs using EOQ and JIT formulas, followed by a comparative cost efficiency analysis. The results show that the conventional method resulted in a total inventory cost of Rp 75,050,000 per year with high ordering frequency. In contrast, the implementation of the JIT system reduced inventory costs to Rp 18,762,500 per year, achieving a cost efficiency of 72%. These findings indicate that the JIT system is more cost-efficient than the conventional method; however, its implementation requires careful consideration of supplier capacity, logistics readiness, and biological risks associated with live inventory. This study contributes empirical evidence on the applicability of JIT in the aquaculture sector, which has different characteristics from manufacturing industries.

This research investigates the impact of brand awareness and online customer reviews on purchase intention regarding Adidas products on the Shopee platform in Indonesia. The research background is founded on the growth of e-commerce and the intense competition present in Indonesia’s fashion industry. A quantitative method employing a survey approach was utilized, engaging 150 Shopee users who are familiar with Adidas products. Data analysis encompassed descriptive tests, classical assumption tests, multiple linear regression, hypothesis testing, and the coefficient of determination, all performed using SPSS version 27. The results demonstrate that brand awareness and online customer reviews have a positive and significant effect on consumer purchase intention, both individually and collectively. These findings imply that greater brand awareness and the quality of reviews are associated with an increase in purchase intention for Adidas products on Shopee. This research offers insights for Adidas Indonesia regarding the significance of enhancing brand awareness and fostering authentic reviews through exclusive promotions, review incentives, and the use of the “Verified Purchase” feature. Future research should be encouraged to integrate additional variables such as price and product quality for a more comprehensive analysis

This study examines the effect of leverage on the profitability of PT Pabrik Kertas Tjiwi Kimia Tbk during the 2020–2024 period. Using a causal research method with secondary data obtained from financial reports published on the Indonesia Stock Exchange (IDX), the study analyzes the relationship between Debt to Equity Ratio (DER) as the leverage indicator and Return on Assets (ROA) as the profitability indicator. The results indicate a significant negative relationship between leverage and profitability. Increased DER is associated with a decrease in ROA, suggesting that excessive debt reduces financial performance due to higher interest costs and financial risks. This study contributes to the understanding of leverage's impact on profitability in the manufacturing sector, offering valuable insights for corporate management, investors, and academics. Recommendations include enhancing operational efficiency and optimizing debt management strategies to improve long-term profitability

Esources such as capital and office infrastructure. Human resources are the most important thing for an institution, because humans have the ability to set goals, collaborate, and work so that planned goals are achieved. Likewise, it is no less important than the office infrastructure in an institution that has a big influence in efforts to increase work efficiency and effectiveness. Therefore, an institution really needs office infrastructure that can be used by employees in carrying out their duties and responsibilities so that administrative activities and other operational activities can run well and smoothly. Office infrastructure is one of the factors that supports the success of an institution in achieving the organization's goals. Office facilities and infrastructure are an important part that need to be prepared ideally and continuously so that they can ensure the smooth running of employee work activities. Considering that office facilities and infrastructure are very important in efforts to facilitate employee work activities, therefore it is necessary to manage adequate facilities and infrastructure. Means are anything that is used as a tool to achieve aims and objectives, means are more indicated for moving objects such as computers and machines. Infrastructure is something that is the main support for the implementation of the process (Business, Development, Project), infrastructure is more indicated for immovable objects such as buildings, space, land. Work effectiveness is a condition that shows the level of success of management activities in achieving goals including quantity work, quality of work, and timeliness in completing work. Effectiveness is often associated with an efficient system, so that the service process takes place effectively, optimally and on time, thereby eliminating the need for overtime work with its implications. The efficiency of work processes, the level of effectiveness of office technology users, and the comfort of the work environment will directly and indirectly influence employee performance in completing assigned tasks. Apart from that, there are also various factors that influence work effectiveness, including: time, tasks, productivity, motivation, work evaluation, supervision, work environment, equipment and facilities. It is logical and appropriate if increasing effectiveness is made one of the government's long-term targets in implementing its strategy. Based on the phenomena presented above, it is clear that the Office of Industry, Trade, Energy and Mineral Resources of North Sumatra Province has not been well managed regarding infrastructure and has not complied with the appropriate regulatory principles. Problems like this should be addressed immediately and maximized so that in the future it can be as good as it should be. If this is resolved, it will certainly create a comfortable and conducive atmosphere so that employees can carry out their work responsibilities well and optimally. Therefore, the researcher was interested and conducted research as a result of an internship, with the title "The influence of the lack of office infrastructure on the effectiveness of employee performance