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All Journal Journal of Mathematics UNP Ranah Research : Journal of Multidisciplinary Research and Development
Febriani Febriani
Universitas Negeri Padang
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Transportation Other

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Pembentukan Portofolio Optimal dengan Model Markowtz dan Two-Fund Theorem pada Saham LQ-45 di Bursa Efek Indonesia Febriani Febriani; Media Rosha
Journal of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.544 KB) | DOI: 10.24036/unpjomath.v5i4.11095

Abstract

bstract — Inflation is an increase in the level prices continually. The impact of inflation can beovercome by investing capital or resources carried in an asset with the expectation of obtaining profits in the future which is called investment. Portfolio is a set of several assets to reduce of risk. One of the way to form an optimal portfolio is Markowitz Model using Two-Fund Theorem that can present a portfolio of the smallest risk according to investor preferences. The purpose of this research is to determine the composition of optimal portfolio and proportion of fund from each stock in optimal portfolio.This research used secondary which is consist of 42 samples in LQ-45 during February-July 2019. The result of analysis 42 samples there are 7 stock to form an optimal portfolio with the proportion of them. They are BBRI 43.91%, BRPT 24.08%, EXCL 14.75%, INTP 0.35%, JSMR 8.75%, MNCN 3.57%, WIKA 4.59%.Keywords — optimal portfolio, markowitz model, two-fund theorem.
PENGEMBANGAN MODUL TERMOKIMIA BERBASIS PENDEKATAN SAINTIFIK DILEGKAPI DENGAN PERTANYAAN PROBING DAN PROMPTING KELAS XI TINGKAT SMA/MA Febriani Febriani; Ellizar Ellizar
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 1 No. 3 (2019): Ranah Research : Journal Of Multidisciplinary Research and Development (May 201
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.183 KB)

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Penelitian pengembangan ini bertujuan untuk menghasilkan modul berbasis pendekatan saintifik dilengkapi dengan pertanyaan probing and prompting pada materi dan mengungkapkan tingkat validitas dan praktikalitas dari modul yang dihasilkan. Jenis penelitian yang digunakan adalah Educational Design Resesarch (EDR) dengan model pengembangan Plomp yang terdiri dari tigas tahap yaitu (1) Penelitian Pendahuluan (Preliminary Research), (2) Fase Pengembangan (Prototyping Phase), (3) Fase Penilaian (Assessment Phase). Instrument penelitian yang digunakan berupa lembar wawancara dan angket dalam bentuk lembar validitas dan praktikalitas yang dianalisa dengan momen kappa (k). Hasil uji validitas diperoleh momen kappa 0,82 dengan kevalidan tinggi. Hasil uji praktikalitas pada small grup diperoleh momen kappa 0,87 dengan kepraktisan sangat tinggi. Hasil uji praktikalitas pada field test diperoleh momen kappa 0,86 berdasarkan angket respon guru dengan kepraktisan sangat tinggi dan diperoleh momen kappa 0,90 berdasarkan angket respon siswa dengan kepraktisan sangat tinggi. Berdasarkan hasil penelitian dapat disimpulkan bahwa modul termokimia berbasis pendekatan saintifik kelas XI SMA/MA valid dan praktis
Co-Authors Ellizar ellizar Media Rosha