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ANALISIS INVESTASI DAN PENDAPATAN DAERAH SUMATERA UTARA Siregar, Enni Sari; Wardi, Yunia; Aimon, Hasdi
Jurnal Kajian Ekonomi Vol 2, No 4 (2014)
Publisher : Program Studi Magister Ilmu Ekonomi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (222.041 KB)

This article focused on analyze (1) Effect of the income, interest rates, government expenditure, and inflation to investment in North Sumatera. (2) The influence of investment, government expenditure, inflation, money supply, and tax on the income in North Sumatera. Data used time series of 1982 - 2012. This article use analyzer model equation of simultaneous with method of Two Stage Least Squared (TSLS). The result of research concludes that (1) the income have a significant and positive impact on the investment, interest rates have significant and negatively impact on the investment, government expenditure significantly and positive on the investment, while inflation is not significant and negative effect on the investment in North Sumatera. If income increases, the investment will also increase. If interest rates increases, the investment will decreases, and If government expenditure increases, the investment will increases. (2) the investment have a significant and positive impact on the income, government expenditure is not significant and positive on the income, the money supply have significant and positive impact on the income, and tax have significant and negatively impact on the income in North Sumatera. If investment increases, the income will also increase,Â if the money supply increase, the income will increase, and then if the tax increase, the income will decreases. Keywords :interest rates, goverment expenditure, inflation, the money supply, tax, income and investment

Pengaruh Keputusan Belanja Online Terhadap Perilaku Konsumtif (Studi Kasus Mahasiswa Semester Lima (V) Program Studi Ekonomi Syariah STAIN Mandailing Natal) Siregar, Enni Sari; Nurhidayah, Nurhidayah; Sabri, Sabri
Innovative: Journal Of Social Science Research Vol. 3 No. 6 (2023): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

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Perilaku konsumtif diartikan sebagai aktivitas megkonsumsi barang secara berlebihan dan terjadi secara berulang-ulang tanpa memiliki pertimbangan dari segi pemenuhan kebutuhan secara prioritas. Ada banyak faktor yang mendukung berkembangnya perilaku konsumtif diantaranya kemudahan mendapatkan barang dengan jangkauan internet. Studi ini bertujuan untuk mengetahui pengaruh keputusan belanja online terhadap perilaku konsumtif pada mahasiswa semester lima (V) program studi Ekonomi Syariah STAIN Mandailing Natal. Metode pengambilan sampel dengan menggunakan teknik total sampling yaitu sebanyak 60 responden dan analisis data menggunakan regresi linear sederhana. Berdasarkan olahan data penelitian membuktikan bahwa keputusan belanja online memiliki pengaruh signifikan terhadap perilaku konsumtif mahasiswa. Apabila dilihat dari nilai R square sebesar 0,750 ini berarti bahwa variabel keputusan belanja online memiliki sumbangan pengaruh sebesar 75% terhadap perilaku konsumtif, dengan kata lain perilaku konsumtif mahasiswa 75% dipengaruhi dengan berkembangnya system belanja online pada saat ini. Dan 25% lainnya dipengaruhi oleh variabel lainnya yang tidak diteliti dalam penelitian ini seperti harga, kualitas produk, kualitas layanan, promosi dan lain sebagainya.

Social Culture And Economic Development In The Batak Angkola Community In Padang Lawas Utara Siregar, Enni Sari
ADPEBI International Journal of Business and Social Science Vol. 1 No. 1 (2021)
Publisher : Asosiasi Dosen Peneliti Ilmu Ekonomi dan Bisnis Indonesia (Adpebi)

Economic development is an effort to reduce poverty in order to achieve prosperity through increased income. Economic development can be influenced by economic, social and environmental factors. This study aims to identify the socio-cultural relationship with economic development through a literature study with the object of the Batak Angkola community in North Padang Lawas district. The results of the study indicate that in theory the socio-cultural environment has a relationship with economic development. The socio-cultural environment includes traditional ceremonies such as birth customs, marriage customs and death customs. In addition, poverty, human resources and capital formation are also related to the success of economic development. This local wisdom is still ongoing today because the Batak Angkola people adhere to the philosophy of Hamoraon, Hasangapon, Hagabeon

The Effect of Unemployment on Poverty In Mandailing Natal Siregar, Enni Sari; Batubara, Ihsan
Adpebi International Journal of Multidisciplinary Sciences Vol. 1 No. 1 (2022)
Publisher : Asosiasi Dosen Peneliti Ilmu Ekonomi dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54099/aijms.v1i1.230

This study aims to analyze the effect of the unemployment rate on poverty in Mandailing Natal. This research is a quantitative research using SPSS 23 to process data. Data used is secondary data in the form of time series for the period 2001 - 2021. The results of the study conclude that the poverty equation obtained a Value t-count of 1.251 using a 95% confidence level, = 0.05 compared to the sig value obtained at 0.226, the sig value greater than α or 0.226 > 0.05. This shows that there is no significant effect between unemployment and poverty and this indicates that the poverty rate in Mandailing Natal is not determined by unemployment. If the unemployment rate increases or develops, it will not necessarily affect poverty. Furthermore, the R Square Value in this study is 0.027, indicating that the unemployment rate has an influence of 2.7 % on the poverty rate in Mandailing Natal. Furthermore , another 97.3% is influenced by other variables that were not examined in this study

Shaping a Sustainable Future: How Energy Consumption and Carbon Emissions Drive Low-Carbon Development Siregar, Enni Sari
Signifikan: Jurnal Ilmu Ekonomi Vol 14, No 1 (2025)
Publisher : Faculty of Economic and Business Syarif Hidayatullah State Islamic University of Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/sjie.v14i1.44779

Research Originality: The study examines the impact of deforestation, energy use, transportation, and industrialization in North Sumatra from 1991 to 2021 on low-carbon development. It aims to understand environmental change drivers and propose strategies to mitigate their negative effects on development.Research Objectives: This research aims to explore the relationship between deforestation, energy consumption, land transportation, and industrialization as factors influencing low-carbon development.Research Methods: The study examines factors influencing low-carbon development in North Sumatra from 1991 to 2021, including energy consumption, land transportation, industrialization, and deforestation, influenced by population density and property rights.Empirical Results: The study reveals that deforestation, energy consumption, land transportation, and industrialization significantly impact low-carbon development in North Sumatra, with population density positively influencing deforestation.Implications: The research suggests that the government should implement policies to reduce deforestation, increase public transportation usage, and promote electric vehicles to achieve low-carbon development, promote efficient energy consumption, and encourage environmentally friendly technological innovation.JEL Classification: F21, F43, G18, H21, R23How to Cite:Siregar, E. S. (2025). Shaping a Sustainable Future: How Energy Consumption and Carbon Emission Drive Low-Carbon Development. Signifikan: Jurnal Ilmu Ekonomi, 14(1), 93-110. https://doi.org/10.15408/sjie.v14i1.44779.

Meningkatkan Jiwa Kewirausahaan Peserta Didik Melalui Pelatihan Pembuatan Buket Snack Siregar, Nurintan; Siregar, Enni Sari
Jurnal Pengabdian Masyarakat Akademisi Vol. 4 No. 2 (2025)
Publisher : Jurnal Pengabdian Masyarakat Akademisi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54099/jpma.v4i2.1325

Pendidikan MDA umumnya berfokus penguatan ilmu agama dan pembentukan akhlak mulia. Namun, menghadapi tantangan zaman yang semakin kompleks, diperlukan integrasi pendidikan agama dan pengembangan keterampilan hidup, termasuk jiwa kewirausahaan. PKM dilaksanakan di MDA Padang Laru, Mandailing Natal yang diawali dengan berkoordinasi bersama guru untuk menggali informasi kebutuhan dan karakteristik peserta didik. Selanjutnya pemaparan materi yang bertujuan agar memahami konsep pembuatan buket snack sebagai potensi kewirausahaan. Model kegiatan yang dikembangkan dengan kolaboratif melalui peran tutor sebaya. Sesi refleksi dan evaluasi serta memberikan apresiasi khusus kepada kelompok dengan kreativitas terbaik. Berdasarkan hasil kegiatan terdapat temuan penting yang menunjukkan keberhasilan yaitu : 1) Peningkatan Antusiasme dan Partisipasi Aktif. 2) Kemampuan Praktis dalam Pembuatan Produk. 3) Tumbuhnya Kreativitas dan Inisiatif 4) Penerapan Konsep Tutor Sebaya 5) Refleksi dan Evaluasi Positif 6) Peningkatan Pemahaman tentang Kewirausahaan. Kegiatan berhasil memberikan dampak positif terhadap peningkatan kreativitas dan jiwa kewirausahaan peserta didik. pelatihan ini membuktikan bahwa integrasi antara ilmu agama dan keterampilan hidup sangat mungkin dilakukan secara harmonis. Peserta didik menunjukkan antusiasme dan partisipasi aktif yang tinggi, menguasai keterampilan praktis dalam pembuatan buket snack, menampilkan kreativitas dalam desain produk, serta menunjukkan inisiatif dan semangat kerja sama melalui metode tutor sebaya.

Kepercayaan Diri Dan Kemampuan Berkomunikasi Dalam Pembelajaran Matematika: Systematic Literature Review Siregar, Yulia Pratiwi; Siregar, Enni Sari
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 2 (2025): JURNAL MathEdu (Mathematic Education Journal) Juli 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i2.7181

This study aims to see the extent to which students' self-confidence in improving mathematical communication skills. The study also examines several other aspects that can improve students' mathematical communication skills. The research method used in this study is the Systematic Literature Review (LSR) using 3 steps, namely the stage of collecting articles on Google Scholar and Sinta. At this stage, 35 research articles were obtained, then the second stage was carried out, namely identification. In this second stage, elimination was carried out on the articles obtained because the articles did not match the focus of the research according to the stated research objectives. The next stage is the stage of critical analysis of the five articles that have been obtained. Based on this analysis, it was concluded that good mathematical communication skills occur if the characteristics of the student's self-confidence are in the high and medium categories, while students with low self-confidence characteristics have an impact on poor mathematical communication. In addition, good mathematical communication can also occur by paying attention to gender equality and providing new learning experiences so that students can explore all the abilities that exist in each of them. This learning experience can be done by using a project-based learning model and is related to everyday life

Shaping a Sustainable Future: How Energy Consumption and Carbon Emissions Drive Low-Carbon Development Siregar, Enni Sari
Signifikan: Jurnal Ilmu Ekonomi Vol. 14 No. 1 (2025)
Publisher : Faculty of Economic and Business, Universitas Islam Negeri Syarif Hidayatullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/sjie.v14i1.44779

Research Originality: The study examines the impact of deforestation, energy use, transportation, and industrialization in North Sumatra from 1991 to 2021 on low-carbon development. It aims to understand environmental change drivers and propose strategies to mitigate their negative effects on development.Research Objectives: This research aims to explore the relationship between deforestation, energy consumption, land transportation, and industrialization as factors influencing low-carbon development.Research Methods: The study examines factors influencing low-carbon development in North Sumatra from 1991 to 2021, including energy consumption, land transportation, industrialization, and deforestation, influenced by population density and property rights.Empirical Results: The study reveals that deforestation, energy consumption, land transportation, and industrialization significantly impact low-carbon development in North Sumatra, with population density positively influencing deforestation.Implications: The research suggests that the government should implement policies to reduce deforestation, increase public transportation usage, and promote electric vehicles to achieve low-carbon development, promote efficient energy consumption, and encourage environmentally friendly technological innovation.JEL Classification: F21, F43, G18, H21, R23How to Cite:Siregar, E. S. (2025). Shaping a Sustainable Future: How Energy Consumption and Carbon Emission Drive Low-Carbon Development. Signifikan: Jurnal Ilmu Ekonomi, 14(1), 93-110. https://doi.org/10.15408/sjie.v14i1.44779.

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