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Riyadi, Rizal
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Analisis Jumlah Penduduk dan Angka Harapan Lama Sekolah terhadap Indeks Pembangunan Manusia di Provinsi Jawa Barat (Periode 2012-2020) Gendalasari, Gen Gen; Riyadi, Rizal
ARMADA : Jurnal Penelitian Multidisiplin Vol. 2 No. 7 (2024): ARMADA : Jurnal Penelitian Multidisplin, Juli 2024
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/armada.v2i7.1372

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh Jumlah Penduduk dan Angka harapan Lama Sekolah terhadap Indek Pembangunan Manusia di Provinsi Jawa Barat (Periode 2012-2020). Penelitian ini merupakan jenis penelitian kuantitatif dan penelitian menggunakan data time series dengan runtun waktu 2012-2020. Teknik analisis data yang digunakan adalah analisis regresi linear berganda, yaitu regresi dengan menggunakan variabel Jumlah Penduduk (X1) dan Angka harapan lama sekolah (X2). Berdasarkan hasil analisis data, Jumlah Penduduk (X1) berpengaruh terhadap Indeks Pembangunan Manusia (Y), dengan nilai t hitung sebesar 9,605 > 2,44961 dan tingkat signifikansinya sebesar 0,000. Variabel Angka Harapan Lama Sekolah (X2)  berpengaruh Positif dan signifikan terhadap Indeks Pembangunan Manusia (Y), t hitung sebesar 2,618 > 2,44961 dan tingkat signifikansinya sebesar 0,040. Nilai uji F pada penelitian ini pada F hitung sebesar 2,889 dengan tingkat signifikansi sebesar 0,000. Adapun nilai adjusted R2 yaitu 0,990. sehingga variabel Jumlah Penduduk dan Angka harapan Lama Sekolah mampu memengaruhi variabel Indeks Pembangunan Manusia sebesar  99 % dan sisanya 1 % dijelaskan oleh faktor-faktor lain di luar model penelitian ini.
Analisis Return on Equity, Debt Equity Ratio, dan Current Ratio terhadap Return on Asset Sub Sektor Otomotif yang Terdaftar di Bursa Efek Indonesia (Periode 2012-2020) Riyadi, Rizal; Mashadi, Mashadi
ARMADA : Jurnal Penelitian Multidisiplin Vol. 2 No. 7 (2024): ARMADA : Jurnal Penelitian Multidisplin, Juli 2024
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/armada.v2i7.1373

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh Return On Equity (ROE), Debt to Equity Ratio (DER), dan Current Ratio (CR) terhadap Return On Asset (ROA), baik secara parsial maupun simultan pada perusahaan manufaktur sub sektor otomotif yang terdaftar di Bursa Efek Indonesia (BEI) periode 2012–2020. Penelitian ini menggunakan desain ex post facto dengan populasi seluruh perusahaan manufaktur sub sektor otomotif yang terdaftar di BEI selama periode tersebut. Teknik pengambilan sampel dilakukan dengan metode purposive sampling berdasarkan kriteria tertentu sehingga diperoleh 9 perusahaan sebagai sampel penelitian. Data yang digunakan merupakan data sekunder yang diperoleh dari Indonesian Capital Market Directory (ICMD). Analisis data dilakukan dengan metode regresi linier berganda melalui pendekatan kuantitatif deskriptif. Pengujian hipotesis dilakukan dengan uji F untuk pengaruh simultan dan uji t untuk pengaruh parsial. Hasil penelitian menunjukkan bahwa: (1) ROE berpengaruh signifikan terhadap ROA dengan nilai signifikansi t sebesar 0,002; (2) DER tidak berpengaruh terhadap ROA dengan nilai signifikansi t sebesar 0,792; (3) CR tidak berpengaruh terhadap ROA dengan nilai signifikansi t sebesar 0,832. Secara simultan, ROE, DER, dan CR berpengaruh signifikan terhadap ROA dengan nilai signifikansi F sebesar 0,012 (< 0,05).
Socioeconomic Feasibility of Waste-to-Energy Facilities: A Case Study in South DKI Jakarta Riyadi, Rizal; Tri Hartono, Tjahjo; Sayaza, Mas Davino
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 2 No. 2 (2024): Jurnal Relibi Vol.2 No.2 2024
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v2i2.1259

Abstract

The socioeconomic feasibility of Waste-to-Energy (WtE) facilities is analyzed through a case study in South Jakarta, emphasizing its potential as a sustainable urban waste management solution. This study evaluates the comparative costs and benefits of implementing an Intermediate Waste Treatment Facility (ITF) in three prospective locations: Sukapura (North Jakarta), Pesanggrahan, and Petukangan Selatan (South Jakarta). Results highlight Sukapura’s strategic advantage due to its industrial zoning, resulting in lower residential density, reduced social resistance, and minimized environmental costs. By contrast, higher costs are associated with South Jakarta sites due to greater population densities, leading to amplified pollution impacts. Key findings reveal that WtE facilities generate significant environmental and economic benefits, including reduced greenhouse gas emissions, improved air and water quality, job creation, and regional budget efficiencies. The integration of circular economy principles, such as waste reduction and resource efficiency, further underscores the importance of sustainable waste management strategies. However, successful WtE implementation requires careful alignment with land-use planning and community engagement to address socio-environmental challenges effectively. This study offers valuable insights for policymakers and urban planners, proposing that strategic site selection and adaptive approaches are critical for achieving long-term sustainability in waste management.
Financial Viability Assessment of Intermediate Waste Treatment Facilities in South Service Area of DKI Jakarta Riyadi, Rizal; Tjahjo Tri Hartono; Mas Davino Sayaza
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1679

Abstract

This study evaluates the economic feasibility of developing Intermediate Waste Treatment Facilities (ITFs) utilizing Waste-to-Energy technology in Jakarta's South Service Area. A comparative analysis was conducted using two scenarios: conventional landfill management versus ITFs implementation at two potential locations—Pesanggrahan (South Jakarta) and Sukapura (North Jakarta). The research employed secondary data analysis over one month in August 2021, utilizing financial indicators including Net Present Value (NPV), Internal Rate of Return (IRR), and Benefit Cost Ratio (BCR). Environmental and social externalities were integrated into the economic assessment. Results demonstrate that conventional landfill approaches yield negative present value of IDR 5.24 billion, indicating financial unsustainability. Conversely, WtE technology scenarios show positive economic viability: Pesanggrahan achieves NPV of IDR 441 million (IRR 12.12%, BCR 1.08), while Sukapura demonstrates superior performance with NPV of IDR 1.25 billion (IRR 16.15%, BCR 1.23). The findings establish clear economic justification for transitioning from disposal-based to resource recovery systems, with industrial zone locations offering strategic advantages for ITF development in Jakarta's waste management modernization strategy.
PENGARUH CURRENT RATIO, RETURN ON EQUITY, EARNING PER SHARE, DAN SUKU BUNGA TERHADAP HARGA SAHAM PADA PERUSAHAAN SUB SEKTOR OTOMOTIF Riyadi, Rizal; Sastra, Heri; Ervina, Nelly; Arshandy, Eliza; Eka Putri, Debi
Jurnal Ilmiah Satyagraha Vol. 9 No. 1 (2026): Jurnal Ilmiah Satyagraha
Publisher : Universitas Mahendradatta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47532/satyagraha.v9i1.170

Abstract

Abstrak – Penelitian ini bertujuan untuk menganalisis pengaruh Current Ratio, Return on Equity, Earning per Share, dan suku bunga terhadap harga saham perusahaan sub sektor otomotif yang terdaftar di Bursa Efek Indonesia periode 2018–2022. Penelitian ini menggunakan pendekatan kuantitatif dengan data sekunder yang diperoleh dari laporan keuangan tahunan perusahaan. Sampel penelitian terdiri atas 11 perusahaan yang dipilih menggunakan teknik purposive sampling, sehingga diperoleh 55 unit observasi. Metode analisis yang digunakan meliputi statistik deskriptif dan regresi linear berganda dengan bantuan perangkat lunak SPSS. Hasil penelitian menunjukkan bahwa secara parsial Return on Equity berpengaruh positif terhadap harga saham, sedangkan Current Ratio, Earning per Share, dan suku bunga tidak berpengaruh signifikan terhadap harga saham. Secara simultan, Current Ratio, Return on Equity, Earning per Share, dan suku bunga berpengaruh signifikan terhadap harga saham perusahaan sub sektor otomotif.   Kata kunci: current ratio, return on equity, earning per share, suku bunga, harga saham   Abstract – This study aims to analyze the effect of Current Ratio, Return on Equity, Earning per Share, and interest rates on the stock prices of automotive sub-sector companies listed on the Indonesia Stock Exchange during the 2018–2022 period. This research employs a quantitative approach using secondary data obtained from companies’ annual financial statements. The sample consists of 11 companies, selected through purposive sampling, resulting in 55 observations. Data were analyzed using descriptive statistics and multiple linear regression analysis with the assistance of SPSS software. The results indicate that, partially, Return on Equity has a positive and significant effect on stock prices, while Current Ratio, Earning per Share, and interest rates do not have a significant effect on stock prices. Simultaneously, Current Ratio, Return on Equity, Earning per Share, and interest rates have a significant effect on stock prices of automotive sub-sector companies.   Keywords: current ratio, return on equity, earning per share, interest rate, stock price
PERAN SIKAP WISATAWAN DALAM MEMBENTUK INTENSI MEREKOMENDASIKAN MAKANAN LOKAL DI DESTINASI KULINER SURYA KENCANA BERBASIS NILAI KONSUMSI Riyadi, Rizal; Sudargo, Bayu; Eka Putri, Debi
Jurnal Ilmiah Satyagraha Vol. 9 No. 1 (2026): Jurnal Ilmiah Satyagraha
Publisher : Universitas Mahendradatta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47532/satyagraha.v9i1.171

Abstract

Abstrak – Pariwisata kuliner memiliki peran penting dalam mendukung pengembangan ekonomi lokal, khususnya pada destinasi dengan identitas budaya yang kuat. Kawasan Surya Kencana di Kota Bogor dikenal sebagai destinasi kuliner yang menawarkan pengalaman makanan lokal autentik. Namun, kajian empiris yang mengkaji pengaruh nilai konsumsi terhadap intensi perilaku wisatawan melalui peran sikap masih terbatas. Penelitian ini bertujuan menganalisis pengaruh nilai kualitas dan nilai harga makanan lokal terhadap intensi merekomendasikan dengan sikap wisatawan sebagai variabel mediasi. Penelitian menggunakan pendekatan kuantitatif melalui survei terhadap 385 wisatawan yang pernah berkunjung ke Surya Kencana. Analisis data dilakukan menggunakan Structural Equation Modeling (SEM) dengan AMOS. Hasil penelitian menunjukkan bahwa nilai kualitas dan nilai harga berpengaruh positif dan signifikan terhadap sikap wisatawan, serta sikap wisatawan berpengaruh signifikan terhadap intensi merekomendasikan. Uji Sobel mengonfirmasi bahwa sikap wisatawan berperan sebagai mediator signifikan. Temuan ini menegaskan pentingnya pengelolaan kualitas dan harga makanan lokal dalam mendorong rekomendasi destinasi kuliner.   Kata kunci: Nilai Kualitas, Nilai Harga, Sikap Wisatawan, Intensi Merekomendasikan   Abstract – Culinary tourism plays an important role in supporting local economic development, particularly in destinations with strong cultural identities. Surya Kencana in Bogor City is recognized as a culinary destination offering authentic local food experiences. However, empirical studies examining the influence of consumption values on tourists’ behavioral intentions through attitudinal mechanisms remain limited. This study aims to analyze the effects of quality value and price value of local food on recommendation intention, with tourist attitude acting as a mediating variable. A quantitative approach was employed using a survey of 385 tourists who had visited the Surya Kencana culinary area. Data were analyzed using Structural Equation Modeling (SEM) with AMOS. The results indicate that quality value and price value have positive and significant effects on tourist attitude, which in turn significantly influences recommendation intention. The Sobel test confirms that tourist attitude serves as a significant mediator. These findings highlight the importance of managing food quality and fair pricing to encourage positive attitudes and strengthen word-of-mouth promotion in culinary destinations.   Keywords: Quality Value, Price Value, Tourist Attitude, Recommendation Intention
Co-Authors Aang Munawar Arshandy, Eliza Azahra, Keysha Damatraseta, Febri Dani, Bayu Alamsyah Debi Eka Putri Fachry Abda El Rahman Firdaus Amyar Gen Gen Gendalasari Ghaliyah, Nasya Heri Sastra Kartika, Sri Kusuma, M. Aditya Listari, Sinta Lubis, Biman Paturahman Mangasa Augustinus Sipahutar, Mangasa Augustinus Mas Davino Sayaza Mashadi Mashadi Nelly Ervina Nurmilawati, Nurmilawati Pradipto, Didit Rachman, Fazril Haikhal Sayaza, Mas Davino Sudargo, Bayu Suharmiati Suharmiati Tjahjo Tri Hartono