Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal JOBS (Jurnal Of Business Studies)
Riyadi Riyadi
Politeknik Negeri Semarang
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Library & Information Science

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
ANALISIS PENGARUH JUMLAH PRODUKSI, HARGA BERAS LOKAL, DAN KONSUMSI BERAS TERHADAP IMPOR BERAS DI PROVINSI JAWA TENGAH (2010 – 2014) Yasinta Putri Dewi; Riyadi Riyadi; Fatchun Hasyim
JOBS (Jurnal Of Business Studies) Vol 2, No 2 (2016): Desember 2016
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jobs.v2i2.663

Abstract

Central Java is a province that has a prosperous land and appropriate to for crops. This research aims to analyze the influence of Production, Domestic Price, and Rice Consumption in Central Java toward Import Volume of Rice in Central Java. The data that are used were secondary data during period 2010 – 2014, which were analyzed using multiple regression analysis to estimate the influential factors. According to data analysis report it shows that Production, Domestic Price, and Rice Consumption simultaneously had significant influence toward Import Volume of Rice in Central Java. Nevertheless, partially only Domestic Price, and Rice Consumption in  Central Java  that has  significant influence toward  Import  Volume of  Rice in Central Java. While the Determination Coefficient (Adjusted R2) = 0.584 or 58.4%, it means that the Import Volume  of Rice  in Central Java was 58.4%  which was explained by Production, Domestic Price, and Rice Consumption in Central Java, and the rest of 41.6% were affected by any other factors outside the models. The conclusion is the researcher can develop of factors affecting Import Volume of Rice in Central Java, such as inflation, exchange rate, gross regional domestic bruto, etc.
PENGARUH INFLASI DAN NILAI TUKAR RUPIAH TERHADAP IMPOR KEDELAI DI JAWA TENGAH (PERIODE 2001-2013) Aulia Rachmanti; Riyadi Riyadi; Suharmanto Suharmanto
JOBS (Jurnal Of Business Studies) Vol 1, No 2 (2015): Desember 2015
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jobs.v1i2.654

Abstract

Central Java is the second largest soybean producing provinces after East Java but still have toimport the soybean. The research is intended to analyze (1) the influence of inflation on soybeanimports of Central Java, (2) the influence of rupiah exchange rate on soybean imports of CentralJava, (3) the influence of inflation and rupiah exchange rate on soybean imports of Central Java.This research uses multiple linear analysis, F-test for simultaneous testing and t-test for partialtesting. This research uses secondary data taken from Statistic Bureau of Central Java. Thesimultaneous results by F-test shows that inflation and rupiah exchange rate significantlyinfluenced Central Java Soybean Imports 2001-2013 period. While the result of t-test showed that inflation is significant on Soybean Imports in Central Java 2001-2013 period but rupiah exchange rate did not significantly influence on Soybean Imports in Central Java 2001-2013period. Keywords: Soybean Imports, Inflation, Rupiah Exchange Rate, Policy, and Central Java.
PERAMALAN EKSPOR KARET INDONESIA TAHUN 2017 Wahyu Dwi Putra; Riyadi Riyadi; Iwan Hermawan
JOBS (Jurnal Of Business Studies) Vol 2, No 1 (2016): Oktober 2016
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jobs.v2i1.660

Abstract

Karet alam merupakan komoditi strategis karena salah satu penyumbangdevisa tertinggi di Indonesia. Oleh karena itu, banyak eksportir yang berlombauntuk memenuhi keinginan dan kebutuhan pasar dunia. Penelitian ini bertujuanuntuk meramal dan memberikan bukti empiris mengenai sistem perdagangankaret dan proyeksi ramalan karet Indonesia ke China pada tahun 2017.Penelitianini menggunakan data kuantitatif serta menggunakan teknik analisis peramalandengan bantuan software POM-QM for Windows serta menggunakan pendekatanMetode Linear Regression, Metode Single Exponential Smoothing dan MetodeSingle Moving Average yang kemudian akan diuji keakuratannya menggunakanMAD dan MSE berdasarkan data-data ekspor karet yang sudah ada sebelumnya.Dari hasil penghitungan forecasting dengan menggunakan tiga metode, yaitusingle exponential smoothing, metode single moving average, dan metode linearregression, dan penyelisihan nilai mean absolute error (MAD) dan mean squareerror (MSE) menunjukkan nilai kesalahan terkecil adalah metode linearregression dengan nilai mean absolute error (MAD) 45892,76 dan mean squareerror (MSE) 2807260000 dalam penghitungan peramalan ekspor karet alamIndonesia ke China, mean absolute error (MAD) 31,25 dan mean square error(MSE) 1749,68 dalam penghitungan peramalan ekspor karet remah Indonesia keChina, mean absolute error (MAD) 106890,6 dan mean square error (MSE)21528600000 dalam penghitungan peramalan total ekspor karet Indonesia,sehingga metode linear regression dipilih sebagai metode peramalan yang palingakurat.
Co-Authors Aulia Rachmanti Fatchun Hasyim Iwan Hermawan Suharmanto - Suharmanto Wahyu Dwi Putra Yasinta Putri Dewi