Peramalan Harga Komoditi Beras Premium Menggunakan Algoritma K-Nearest Neighbor (K-NN) Di Kota Surabaya

Fluctuations in premium rice prices in Surabaya can affect economic stability and public welfare. This study aims to predict premium rice prices using the K-Nearest Neighbor (K-NN) algorithm by utilizing historical rice price data from six main markets in Surabaya for the period 2014–2024. The data is divided into two parts, namely training data (2014–2020) and testing data (2021–2024). The results of the analysis show that the K-NN model with an optimal K value provides good prediction accuracy, with an average Mean Absolute Percentage Error (MAPE) value below 10% for most markets, indicating the reliability of the model in predicting price patterns. Keputran Market recorded the best results with a MAPE value of less than 10%, while other markets such as Wonokromo and Pucang Anom showed lower accuracy due to more complex price patterns. Evaluation using the Root Mean Square Error (RMSE) metric also confirmed the effectiveness of the model in producing accurate predictions based on training data. This study shows that the K-NN algorithm can be an effective tool to support strategic decision making in maintaining price stability and improving food security. Keywords: Price Prediction; K¬-Nearest Neighbor; MAPE, RMSE; Premium Ric

Faktor Pengaruh Mahasiswa untuk Berinvestasi Mata Uang Kripto

This research aims to analyze the influence of the Bandwagon Effect, Financial Literacy, Financial Efficacy, and Investment Returns on Students' Interest in Investing in Crypto Currency. This research uses a quantitative approach with the Partial Least Square (PLS) method. Primary data was obtained by distributing questionnaires to students in the eastern part of Surabaya, with a total of 100 respondents. The research results show that the Bandwagon Effect and Financial Literacy have a positive and significant influence on student investment interest. Investment Returns also have a positive, but not significant, influence on investment interest. Meanwhile, Financial Efficacy does not have a significant influence on Students' Interest in Investing in Crypto Currency. This research provides a theoretical contribution to the development of the Theory of Planned Behavior (TPB) in the context of crypto investment among students. From a practical side, the results of this research can be used by educational institutions to increase student financial literacy, as well as provide insight to crypto investment platforms in developing more effective marketing strategies

Pengaruh Employee Experience, Job Satisfaction dan Employee Engagement terhadap Employee Performance pada Gen Z ASN Dinas Pendidikan di Surabaya

Generation Z is starting to dominate the workforce in the rapidly evolving digital era. This is evident in various industries, including in the ASN environment. However, because Gen Z is different from previous generations, it is challenging to create a positive Employee Experience for employees. The aim of this research is to analyze the influence of Employee Experience, Job Satisfaction, and Employee Engagement on Employee Performance among Gen Z ASN in the Education Office of Surabaya. This study uses a quantitative approach that uses a survey method through a questionnaire distributed to ASN Gen Z of the Education Office in Surabaya. The respondents in this study were 233 employees who were included in the age group of Gen Z. The analysis technique used in this study was Structural Equation Modelling-Partial Least Square (SEM-PLS) using the help of Smart-PLS software. The results of this study show that Employee Experience, Job Satisfaction and Employee Engagement have a positive and significant influence on Employee Performance. This shows that the better the Employee Experience, Job Satisfaction and Employee Engagement, the higher the Employee Performance. Keywords : Employee Experience, Job Satisfaction, Employee Engagement, Employee Performance, Generation Z, AS

Pengaruh Literasi Keuangan, Sikap Keuangan, Dan Pendapatan Terhadap Perilaku Pengelolaan Keuangan UMKM Kota Surabaya

This study aims to examine the influence of financial literacy, financial attitudes, and income on the financial management behavior of MSMEs in Surabaya City. The number of respondents in this study was 120 respondents with the criteria of MSMEs located in Surabaya City, Businesses have been actively operating for at least 1 year, MSME managers are aged 18-60 years. Respondent data were collected by distributing questionnaires using purposive sampling techniques. The data analysis technique used is Multiple linear regression analysis using the SPSS program. The results of this study explain that financial literacy and financial attitudes have a significant positive effect on financial management behavior, income does not have a significant effect on financial management behavior

Pengaruh Progam Diskon, Gratis Ongkir dan Kualitas Pelayanan Terhadap Keputusan Pembelian di Shopee

This study aims to analyze the effect of discount programs, free shipping, and service quality on purchasing decisions on Shopee. The study was conducted in Payaman Village, Lamongan Regency with a sample of 113 active Shopee user respondents. The data collection method used was to distribute questionnaires distributed online via Google Forms. Data analysis used descriptive and statistical analysis techniques with the help of WarpPLS 7.0 and SPSS 25 software. The results showed that free shipping and service quality had a positive and significant effect on purchasing decisions on Shopee. However, the discount program did not have a positive and significant effect on purchasing decisions on Shopee. These findings indicate that although discounts can attract consumers' attention, factors such as free shipping and high service quality can play a more important role in driving purchasing decisions on Shopee. This study provides valuable insights for Shopee and other e-commerce platforms to improve their marketing strategies by focusing on service quality and free shipping promotions to increase purchasing decisions and customer loyalty on Shopee

Analisis Pengaruh Kualitas Layanan, Kepercayaan, Dan Citra Bank Terhadap Loyalitas Nasabah Pada Bank BNI

This study aims to analyze the effect of service quality, trust, and bank image on customer loyalty at Bank BNI. The increasingly competitive banking industry requires banks to maintain customer loyalty by improving service quality, building trust, and strengthening their brand image. This research employs a quantitative approach using the Partial Least Squares-Structural Equation Modeling (PLS- SEM) technique to process data collected from a survey of 300 Bank BNI customers in Surabaya. The findings indicate that service quality has a positive and significant effect on trust and bank image. Trust is also found to mediate the relationship between service quality and customer loyalty. Additionally, bank image plays a crucial role in strengthening customer trust and enhancing their loyalty to the bank. Therefore, Bank BNI must continuously improve service quality, maintain a positive brand image, and build customer trust to sustain loyalty amid intense banking competition. Keywords: Service quality, Trust, Bank image, Customer loyalty, PLS-SE

Pengaruh Green Human Resource Management Terhadap Green Innovate Behavior dan Green Organizational Citizenship Behavior dengan Enviroment Manajerial Support Sebagai Moderasi Pada Karyawan Indomaret di Sidoarjo

This study aims to analyze the influence of Green Human Resource Management (GHRM) on Green Innovative Behavior (GIB) and Green Organizational Citizenship Behavior (GOCB) among Indomaret employees in Sidoarjo. Additionally, this study also examines the role of Environmental Managerial Support (EMS) as a moderating variable in that relationship. GHRM is a human resource management strategy that focuses on environmental sustainability, which can encourage innovative behavior and employee concern for the environment in the workplace. The research method used is a quantitative approach with purposive sampling technique. Data were collected through the distribution of questionnaires to Indomaret employees in the Sidoarjo area. Data analysis was conducted using Structural Equation Modeling (SEM) with the aid of SmartPLS software. The research results show that GHRM has a positive and significant effect on GIB and GOCB. Furthermore, EMS has been proven to strengthen the relationship between GHRM and GIB and GOCB, indicating that managerial support in environmental aspects can enhance the positive impact of GHRM on employees' innovative behavior and environmental concern

Analisis Hubungan Pemasaran Digital, Kualitas Layanan Kesehatan, Kepuasan Pasien, dan Loyalitas Pasien di Puskesmas Rangkah

This study aims to analyze the effect of digital marketing and health service quality on patient satisfaction and loyalty at Rangkah public health center, Surabaya. The background of this study is based on the increasing need for responsive, modern, and digital technology-based health services, especially in the context of competition with private health facilities. This study uses a quantitative approach with data collection techniques through questionnaires distributed to 265 respondents who have been treated at Rangkah public health center. The analysis method used was Structural Equation Modeling-Partial Least Square (SEM-PLS). The results showed that both digital marketing and health service quality had a significant effect on patient satisfaction and loyalty. In addition, patient satisfaction was shown to act as a mediating variable between digital marketing and service quality with patient loyalty. These findings confirm the importance of integration between effective digital marketing strategies and improved service quality in building sustainable patient loyalty. This study provides strategic implications for public healthcare managers in the face of digital transformation in the healthcare sector. Keyword: Digital Marketing, Quality of Health Service, Patient Satisfaction, Patient Loyalty, Public Health Cente

Pengaruh Layanan, Promosi dan Lokasi Puskesmas Terhadap Kepuasan dan Loyalitas Pasien Poli Gigi di Puskesmas Perak Timur

Service the quality of care encompasses various aspects such as the professionalism of the medical staff, the speed of service delivery, the friendliness of the staff, and the comfort of the facilities provided to patients. If patients feel well-treated and receive adequate care, their satisfaction will increase significantly. Furthermore, appropriate promotions such as dental health education, free consultations, and the use of social media to provide information about service schedules can attract public attention and strengthen the community's positive image. The strategic and easily accessible location of the Perak Timur Community Health Center is also a supporting factor that accelerates patients' decisions to visit and use the Dental Clinic services regularly. Easy transportation access and its proximity to residential areas make location a crucial factor in maintaining patient loyalty. The combination of quality service, effective promotion, and a supportive location will create overall satisfaction, which impacts patients' desire to remain loyal to the service Keywords: location, loyal, promotion, service

Reaksi Pasar Saham Terhadap Peristiwa Perang Rusia-Ukraina (Studi Kasus Perusahaan Yang Terdaftar Pada Lq45)

The level of a country's economy can be seen through the level of selling and buying prices of goods in that country. Fluctuations in selling and buying prices can be influenced by several things, one of which is international issues such as war between countries. The war between Russia and Ukraine is one of the events that has quite an impact on the price fluctuations of goods and stocks in several countries, one of which is Indonesia. This war has received attention from all over the world, both in terms of market losses and humanity. It is very possible that with the war between Russia and Ukraine, countries that have cooperation with these two countries will also be affected. However, apart from countries that cooperate with Russia and Ukraine, of course this event brings information that can affect market activity. This study aims to test the effect of the war between Russia and Ukraine on Abnormal Return and Trading Volume Activity on the stock prices of companies listed in the LQ45. The sample used is financial data from companies listed in the LQ45. The results of this study indicate that the Russia-Ukraine war did not have a significant effect on Abnormal Return and there was no significant change in Trading Volume Activity. Keywords: Market Efficiency, Abnormal Return, Trading Volume Activit