Danang Indrajaya | Telkom University (original) (raw)

Papers by Danang Indrajaya

Research paper thumbnail of Cintai Diri Sebagai Senjata Remaja

KREATIF: Jurnal Pengabdian Masyarakat Nusantara

Berbagai macam permasalahan terjadi pada pemuda di Indonesia, hal ini terjadi dari tingkat kasus ... more Berbagai macam permasalahan terjadi pada pemuda di Indonesia, hal ini terjadi dari tingkat kasus narkoba serta penikahan dini yang semakin melonjak. Hal ini terjadi dikarenakan beberapa faktor yang ada, faktor tersebut antara lain faktor dari lingkungan dan kepedulian akan diri sendiri. Kegiatan Pengabdian ini bertujuan untuk menumbuhkan kepercayaan diri dan mencitai diri sendiri untuk para remaja agar terhindar dari perilaku menyimpang. Metode yang digunakan yaitu dengan metode sosialisasi, sharing, relasi, dan charity. Sampel dalam penelitian ini para pemuda di seluruh Indonesia yaitu dari desa ke kota. Rangkaian dalam kegiatan ini dengan pemberian materi secara live pada Instagram, webinar dan belajar bersama. Hasil dari kegiatan ini para audiens antusias menerima informasi mengenai Self Love yang disampaikan oleh pemateri. Sehingga diharapkan pemberian informasi mengenai pentingnya Self Love untuk para pemuda di Indonesia dapat dilakukan kembali.

Research paper thumbnail of Pendampingan Pemasaran Digital Dan Rebranding Bagi Umkm

NUSANTARA : Jurnal Pengabdian Kepada Masyarakat

Seiring dengan perkembangan zaman, teknologi informasi juga ikut berkembang pesat. Salah satu kem... more Seiring dengan perkembangan zaman, teknologi informasi juga ikut berkembang pesat. Salah satu kemajuan teknologi informasi adalah dengan adanya internet. Adanya internet memudahkan mengakses sumber informasi yang ada di seluruh dunia. Pengabdian masyarakat (community empowerment) menjadi isu utama dalam program dan orientasi pembangunan nasional pada saat ini. Kegiatan peningkatan sarana jalan diupayakan melibatkan masyarakat secara aktif melalui Pengabdian masyarakat. Dalam kegiatan bimbingan UMKM Ayam Goreng Bu Sumarni, tujuan utamanya adalah untuk membangkitkan dan memberdayakan kembali UMKM lokal yang terkena dampak pandemi. Bimbingan yang dilakukan terdiri dari rebranding logo, kemasan, dan spanduk, kemudian juga memberikan materi mengenai pentingnya Brand Awareness pada sosial media, dan pemberian materi mengenai Instagram

Research paper thumbnail of Pelatihan dan Workshop “Yuk Beli Saham Syariah, miliki Indonesia” Sebagai Upaya Meningkatkan Literasi Keuangan Syariah Generasi Muda DKI Jakarta

Society : Jurnal Pengabdian Masyarakat

This Digital Public Education Event is a series of events from the ESQ Business School Sharia Inv... more This Digital Public Education Event is a series of events from the ESQ Business School Sharia Investment Gallery External Division Work Program. The theme raised was "Yuk Beli Saham, Miliki Indonesia", containing knowledge sharing on investment and the Islamic capital market, technical deepening regarding how to start investing correctly and adequately during a pandemic and how to open an investment account with the support of PT. Indo Premier. Securities. This event was held in November in conjunction with Heroes' Day to raise public awareness to help the country deal with the economic recession. With this event, it is hoped that the spirit and soul of the heroes will become a driving force in helping the country deal with the pandemic's impact on all aspects of life. This event is held online through the Zoom application, presented directly by the presenter, which includes an introduction and initial steps in investing. The expected output is that the participant...

Research paper thumbnail of Analysis of Cointegration and VECM of FDI, Labor Force, Government Expenditure and GDP in Indonesia (2005-2019)

International Journal of Economics Development Research, Jan 4, 2021

This paper studied the effect of labor force, government expenditure and FDI on GDP of Indonesia ... more This paper studied the effect of labor force, government expenditure and FDI on GDP of Indonesia (2005-2019) by cointegration analysis and VECM. In the short-term, GDP, labor force and government expenditure significantly affect GDP of Indonesia, while FDI does not significantly affect Indonesia's GDP. However, in the long term, GDP, labor force, government expenditure and FDI have a significant affect GDP of Indonesia. The government must ensure that there are no shocks in GDP, labor force, government expenditure and FDI of Indonesia. Because any shocks that occur in these variables will also have an impact on the GDP of Indonesia.

Research paper thumbnail of Efektivitas Kebijakan Moneter Non Konvensional pada BPD Indonesia di Masa Pandemi

Ekonomi, Keuangan, Investasi dan Syariah (EKUITAS)

This article analyzes the effectiveness of non-conventional monetary policy in Indonesia. The dat... more This article analyzes the effectiveness of non-conventional monetary policy in Indonesia. The data used is quarterly panel data covering 16 Regional Development Banks (BPD) for 9 quarters from 2019 to 2020. This study analyzes the effectiveness of quantitative easing policies on bank lending channels from monetary policy transmission. This study uses static and dynamic panel data analysis methods, namely the Individual Fixed Effects method, and the Generalized Method of Moments Analysis. The results of this study indicate that the liquidity ratio has a positive but not significant effect on credit growth. Likewise, the effect of the securities ratio is negative but not significant on credit growth. This shows that non-conventional monetary policy in Indonesia is not effective, because banks are still hesitant to channel new loans for fear of increasing non-performing loans

Research paper thumbnail of The Effect of Third-Party Funds, Capital Adequacy Ratio, Casa Ratio, Bi Rate, And Inflation Towards The Distribution of Credit Banking in Indonesia

International Journal of Economics Development Research (IJEDR), 2022

This research aims to determine the effect of internal and external factors on bank lending. The ... more This research aims to determine the effect of internal and external factors on bank lending. The independent variables analyzed were Third-Party Funds (DPK), Capital Adequacy Ratio (CAR), CASA ratio, BI rates, and inflation. While the dependent variable in this study is bank credit distribution. This research was conducted by taking secondary data through the publication of Bank Indonesia (www.bi.go.id), the Financial Services Authority (www.ojk.go.id), and Bureau Van Dijk (www.orbis.bvdinfo.com). The population in this study are banks listed on the Indonesia Stock Exchange (IDX). A sampling of this study was conducted using the purposive sampling method, which amounted to 15 banks with the largest assets in Indonesia in 2018. The research period used is based on annual banking reports, 2011-2018. This research is a quantitative study using the FEM (Fixed Effect Model) method. The results of this research indicate that the variable of Third-Party Funds, Capital Adequacy Ratios, CASA...

Research paper thumbnail of Relationship of Inflation, BI Rate and Deposit Interest Rate

Ekonomi, Keuangan, Investasi dan Syariah (EKUITAS)

This study aims to model the relationship between the inflation rate, BI rate, and deposit intere... more This study aims to model the relationship between the inflation rate, BI rate, and deposit interest rates, then analyze the model, and provide forecasting and structural analysis of the model. Therefore, the method used in this study is Vector Error Correction Model analysis which is applied to time series data of the inflation rate (CPI), BI rate, and deposit interest rates. The results of the model analysis show that the policy of changing the BI rate has an effect on the rise and fall of the inflation rate (CPI) and fluctuations in the deposit rate (deprate). The BI rate is also influenced by two other variables (CPI and Deprate), but the biggest influence is from the variable BI Rate itself, and CPI and Deprate are mutually influencing (causality effect), but like the BI rate, the most influential variable is the lag variable of each of these variables

Research paper thumbnail of Are Physical and Non-Physical Working Environment Effect Employees Productivity with Motivation as an Intervening Factor?

Productivity means as a comparison between the results achieved (output) and the overall resource... more Productivity means as a comparison between the results achieved (output) and the overall resources used (input). Work productivity is a process to produce or increase the results of goods and services as high as possible by utilizing resources as efficiently as possible. In this study, productivity will be measured through the impact of physical work environment, non-physical work environment and work motivation. The research method used is a quantitative method with a descriptive research approach and associative analysis. The number of sample in this study was 82 employees who were determined using simple random sampling technique with Slovin method. The data obtained are primary data through questionnaires and processed using statistical software. This study has fulfilled the instrument test and classic assumption test, namely: normality test, linearity test, multicollinearity test, and heteroscedasticity test. The description of statistics in the study shows that the physical wo...

Research paper thumbnail of The Influence of Profitability and Solvency Ratios on Stock Prices with Inflation as Moderating Variable (Case Study on BUMN)

This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt ... more This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt to Equity Ratio (DER) on stock prices with inflation as a moderating variable in construction sector and basic industry companies which are listed on the Indonesia Stock Exchange during the period 2014-2018. This research is a quantitative study using multiple linear regression methods, t test and coefficient of determination test. Previously, the classical panel data assumption test which included normality test and multicollinearity test was conducted. Whereas the problem of heteroscedasticity and autocorrelation can be overcome by the Generalized Least Square (GLS) method. There are 8 SOE (state-owned enterprises) construction and basic industry companies listed on the Indonesia Stock Exchange as research objects. The results of this study indicate that the Return on Assets (ROA) of several BUMN companies observed during the 2014-2018 period had a positive effect on their share price...

Research paper thumbnail of Dynamics of Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response and Additive Allee Effect

International Journal of Ecology & Development, 2016

In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-D... more In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-DeAngelis functional response and additive Allee effect on prey.Particularly we discuss the existence condition for each equilibrium point, localstability and global stability of the equilibria.It is shown that the model has none, one or two positive equilibria.The permanence of the system is examined.We address that in certain conditions, the model exhibitsa bistability phenomenon. Finally, we perform some numerical simulations toconfirmour analytical results.

Research paper thumbnail of Simulasi Model Gelombang Pasang Surut dengan Metode Beda Hingga

Limits: Journal of Mathematics and Its Applications

Research paper thumbnail of Simulasi Model Gelombang Pasang Surut dengan Metode Beda Hingga

Limits: Journal Mathematics and its Aplications by Departemen Matematika ITS, 2005

Abstrak Beberapa pesisir laut di Indonesia memiliki kondisi pasang surut yang cukup tinggi. Hal i... more Abstrak Beberapa pesisir laut di Indonesia memiliki kondisi pasang surut yang cukup tinggi. Hal ini dapat mempengaruhi pembangunan sektoral dan regional yang dilakukan pemerintah maupun swasta yang berlangsung secara intensif di daerah pesisir. Untuk itu, diperlukan suatu perangkat untuk memperkirakan kondisi pasang surut perairan dalam mendukung perencanaan suatu bangunan laut. Salah satu metode numerik yang digunakan untuk menghitung ketinggian dan kecepatan suatu gelombang pasang surut adalah metode beda hingga. Dalam makalah ini dibahas mengenai pembentukan model matematika gelombang pasang surut dan implementasinya, yaitu perhitungan numerik dengan metode beda hingga dengan simulasi grafiknya. Kata kunci: beda hingga, gelombang pasang surut, simulasi

Research paper thumbnail of Dynamics of Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response and Additive Allee Effect

International Journal of Ecology and Development (IJED), 2016

In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-D... more In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-DeAngelis functional response and additive Allee effect on prey.Particularly we discuss the existence condition for each equilibrium point, localstability and global stability of the equilibria.It is shown that the model has none, one or two positive equilibria.The permanence of the system is examined.We address that in certain conditions, the model exhibitsa bistability phenomenon. Finally, we perform some numerical simulations toconfirmour analytical results.

Research paper thumbnail of The Influence of Profitability and Solvency Ratios on Stock Prices with Inflation as Moderating Variable (Case Study on BUMN

International Journal of Technology And Business (IJTB), 2019

This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt ... more This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt to Equity Ratio (DER) on stock prices with inflation as a moderating variable in construction sector and basic industry companies which are listed on the Indonesia Stock Exchange during the period 2014-2018. This research is a quantitative study using multiple linear regression methods, t test and coefficient of determination test. Previously, the classical panel data assumption test which included normality test and multicollinearity test was conducted. Whereas the problem of heteroscedasticity and autocorrelation can be overcome by the Generalized Least Square (GLS) method. There are 8 SOE (state-owned enterprises) construction and basic industry companies listed on the Indonesia Stock Exchange as research objects. The results of this study indicate that the Return on Assets (ROA) of several BUMN companies observed during the 2014-2018 period had a positive effect on their share prices, while the Return on Equity (ROE) and Debt to Equity Ratio (DER) of these companies had no effect significantly to the share prices. The results of this study also show that inflation does not moderate the ROA and DER relationship of several SOE companies which are observed to the share prices. On the other hand, inflation can weaken the effect of ROE on the share prices of several BUMN companies observed.

Teaching Documents by Danang Indrajaya

Research paper thumbnail of Analisa Statistik SPSS Lengkap Dengan Variabel Kontrol

ESQ Business School, 2018

Analisa Statistik SPSS Lengkap Dengan Variabel Kontrol

Research paper thumbnail of Cintai Diri Sebagai Senjata Remaja

KREATIF: Jurnal Pengabdian Masyarakat Nusantara

Berbagai macam permasalahan terjadi pada pemuda di Indonesia, hal ini terjadi dari tingkat kasus ... more Berbagai macam permasalahan terjadi pada pemuda di Indonesia, hal ini terjadi dari tingkat kasus narkoba serta penikahan dini yang semakin melonjak. Hal ini terjadi dikarenakan beberapa faktor yang ada, faktor tersebut antara lain faktor dari lingkungan dan kepedulian akan diri sendiri. Kegiatan Pengabdian ini bertujuan untuk menumbuhkan kepercayaan diri dan mencitai diri sendiri untuk para remaja agar terhindar dari perilaku menyimpang. Metode yang digunakan yaitu dengan metode sosialisasi, sharing, relasi, dan charity. Sampel dalam penelitian ini para pemuda di seluruh Indonesia yaitu dari desa ke kota. Rangkaian dalam kegiatan ini dengan pemberian materi secara live pada Instagram, webinar dan belajar bersama. Hasil dari kegiatan ini para audiens antusias menerima informasi mengenai Self Love yang disampaikan oleh pemateri. Sehingga diharapkan pemberian informasi mengenai pentingnya Self Love untuk para pemuda di Indonesia dapat dilakukan kembali.

Research paper thumbnail of Pendampingan Pemasaran Digital Dan Rebranding Bagi Umkm

NUSANTARA : Jurnal Pengabdian Kepada Masyarakat

Seiring dengan perkembangan zaman, teknologi informasi juga ikut berkembang pesat. Salah satu kem... more Seiring dengan perkembangan zaman, teknologi informasi juga ikut berkembang pesat. Salah satu kemajuan teknologi informasi adalah dengan adanya internet. Adanya internet memudahkan mengakses sumber informasi yang ada di seluruh dunia. Pengabdian masyarakat (community empowerment) menjadi isu utama dalam program dan orientasi pembangunan nasional pada saat ini. Kegiatan peningkatan sarana jalan diupayakan melibatkan masyarakat secara aktif melalui Pengabdian masyarakat. Dalam kegiatan bimbingan UMKM Ayam Goreng Bu Sumarni, tujuan utamanya adalah untuk membangkitkan dan memberdayakan kembali UMKM lokal yang terkena dampak pandemi. Bimbingan yang dilakukan terdiri dari rebranding logo, kemasan, dan spanduk, kemudian juga memberikan materi mengenai pentingnya Brand Awareness pada sosial media, dan pemberian materi mengenai Instagram

Research paper thumbnail of Pelatihan dan Workshop “Yuk Beli Saham Syariah, miliki Indonesia” Sebagai Upaya Meningkatkan Literasi Keuangan Syariah Generasi Muda DKI Jakarta

Society : Jurnal Pengabdian Masyarakat

This Digital Public Education Event is a series of events from the ESQ Business School Sharia Inv... more This Digital Public Education Event is a series of events from the ESQ Business School Sharia Investment Gallery External Division Work Program. The theme raised was "Yuk Beli Saham, Miliki Indonesia", containing knowledge sharing on investment and the Islamic capital market, technical deepening regarding how to start investing correctly and adequately during a pandemic and how to open an investment account with the support of PT. Indo Premier. Securities. This event was held in November in conjunction with Heroes' Day to raise public awareness to help the country deal with the economic recession. With this event, it is hoped that the spirit and soul of the heroes will become a driving force in helping the country deal with the pandemic's impact on all aspects of life. This event is held online through the Zoom application, presented directly by the presenter, which includes an introduction and initial steps in investing. The expected output is that the participant...

Research paper thumbnail of Analysis of Cointegration and VECM of FDI, Labor Force, Government Expenditure and GDP in Indonesia (2005-2019)

International Journal of Economics Development Research, Jan 4, 2021

This paper studied the effect of labor force, government expenditure and FDI on GDP of Indonesia ... more This paper studied the effect of labor force, government expenditure and FDI on GDP of Indonesia (2005-2019) by cointegration analysis and VECM. In the short-term, GDP, labor force and government expenditure significantly affect GDP of Indonesia, while FDI does not significantly affect Indonesia's GDP. However, in the long term, GDP, labor force, government expenditure and FDI have a significant affect GDP of Indonesia. The government must ensure that there are no shocks in GDP, labor force, government expenditure and FDI of Indonesia. Because any shocks that occur in these variables will also have an impact on the GDP of Indonesia.

Research paper thumbnail of Efektivitas Kebijakan Moneter Non Konvensional pada BPD Indonesia di Masa Pandemi

Ekonomi, Keuangan, Investasi dan Syariah (EKUITAS)

This article analyzes the effectiveness of non-conventional monetary policy in Indonesia. The dat... more This article analyzes the effectiveness of non-conventional monetary policy in Indonesia. The data used is quarterly panel data covering 16 Regional Development Banks (BPD) for 9 quarters from 2019 to 2020. This study analyzes the effectiveness of quantitative easing policies on bank lending channels from monetary policy transmission. This study uses static and dynamic panel data analysis methods, namely the Individual Fixed Effects method, and the Generalized Method of Moments Analysis. The results of this study indicate that the liquidity ratio has a positive but not significant effect on credit growth. Likewise, the effect of the securities ratio is negative but not significant on credit growth. This shows that non-conventional monetary policy in Indonesia is not effective, because banks are still hesitant to channel new loans for fear of increasing non-performing loans

Research paper thumbnail of The Effect of Third-Party Funds, Capital Adequacy Ratio, Casa Ratio, Bi Rate, And Inflation Towards The Distribution of Credit Banking in Indonesia

International Journal of Economics Development Research (IJEDR), 2022

This research aims to determine the effect of internal and external factors on bank lending. The ... more This research aims to determine the effect of internal and external factors on bank lending. The independent variables analyzed were Third-Party Funds (DPK), Capital Adequacy Ratio (CAR), CASA ratio, BI rates, and inflation. While the dependent variable in this study is bank credit distribution. This research was conducted by taking secondary data through the publication of Bank Indonesia (www.bi.go.id), the Financial Services Authority (www.ojk.go.id), and Bureau Van Dijk (www.orbis.bvdinfo.com). The population in this study are banks listed on the Indonesia Stock Exchange (IDX). A sampling of this study was conducted using the purposive sampling method, which amounted to 15 banks with the largest assets in Indonesia in 2018. The research period used is based on annual banking reports, 2011-2018. This research is a quantitative study using the FEM (Fixed Effect Model) method. The results of this research indicate that the variable of Third-Party Funds, Capital Adequacy Ratios, CASA...

Research paper thumbnail of Relationship of Inflation, BI Rate and Deposit Interest Rate

Ekonomi, Keuangan, Investasi dan Syariah (EKUITAS)

This study aims to model the relationship between the inflation rate, BI rate, and deposit intere... more This study aims to model the relationship between the inflation rate, BI rate, and deposit interest rates, then analyze the model, and provide forecasting and structural analysis of the model. Therefore, the method used in this study is Vector Error Correction Model analysis which is applied to time series data of the inflation rate (CPI), BI rate, and deposit interest rates. The results of the model analysis show that the policy of changing the BI rate has an effect on the rise and fall of the inflation rate (CPI) and fluctuations in the deposit rate (deprate). The BI rate is also influenced by two other variables (CPI and Deprate), but the biggest influence is from the variable BI Rate itself, and CPI and Deprate are mutually influencing (causality effect), but like the BI rate, the most influential variable is the lag variable of each of these variables

Research paper thumbnail of Are Physical and Non-Physical Working Environment Effect Employees Productivity with Motivation as an Intervening Factor?

Productivity means as a comparison between the results achieved (output) and the overall resource... more Productivity means as a comparison between the results achieved (output) and the overall resources used (input). Work productivity is a process to produce or increase the results of goods and services as high as possible by utilizing resources as efficiently as possible. In this study, productivity will be measured through the impact of physical work environment, non-physical work environment and work motivation. The research method used is a quantitative method with a descriptive research approach and associative analysis. The number of sample in this study was 82 employees who were determined using simple random sampling technique with Slovin method. The data obtained are primary data through questionnaires and processed using statistical software. This study has fulfilled the instrument test and classic assumption test, namely: normality test, linearity test, multicollinearity test, and heteroscedasticity test. The description of statistics in the study shows that the physical wo...

Research paper thumbnail of The Influence of Profitability and Solvency Ratios on Stock Prices with Inflation as Moderating Variable (Case Study on BUMN)

This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt ... more This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt to Equity Ratio (DER) on stock prices with inflation as a moderating variable in construction sector and basic industry companies which are listed on the Indonesia Stock Exchange during the period 2014-2018. This research is a quantitative study using multiple linear regression methods, t test and coefficient of determination test. Previously, the classical panel data assumption test which included normality test and multicollinearity test was conducted. Whereas the problem of heteroscedasticity and autocorrelation can be overcome by the Generalized Least Square (GLS) method. There are 8 SOE (state-owned enterprises) construction and basic industry companies listed on the Indonesia Stock Exchange as research objects. The results of this study indicate that the Return on Assets (ROA) of several BUMN companies observed during the 2014-2018 period had a positive effect on their share price...

Research paper thumbnail of Dynamics of Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response and Additive Allee Effect

International Journal of Ecology & Development, 2016

In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-D... more In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-DeAngelis functional response and additive Allee effect on prey.Particularly we discuss the existence condition for each equilibrium point, localstability and global stability of the equilibria.It is shown that the model has none, one or two positive equilibria.The permanence of the system is examined.We address that in certain conditions, the model exhibitsa bistability phenomenon. Finally, we perform some numerical simulations toconfirmour analytical results.

Research paper thumbnail of Simulasi Model Gelombang Pasang Surut dengan Metode Beda Hingga

Limits: Journal of Mathematics and Its Applications

Research paper thumbnail of Simulasi Model Gelombang Pasang Surut dengan Metode Beda Hingga

Limits: Journal Mathematics and its Aplications by Departemen Matematika ITS, 2005

Abstrak Beberapa pesisir laut di Indonesia memiliki kondisi pasang surut yang cukup tinggi. Hal i... more Abstrak Beberapa pesisir laut di Indonesia memiliki kondisi pasang surut yang cukup tinggi. Hal ini dapat mempengaruhi pembangunan sektoral dan regional yang dilakukan pemerintah maupun swasta yang berlangsung secara intensif di daerah pesisir. Untuk itu, diperlukan suatu perangkat untuk memperkirakan kondisi pasang surut perairan dalam mendukung perencanaan suatu bangunan laut. Salah satu metode numerik yang digunakan untuk menghitung ketinggian dan kecepatan suatu gelombang pasang surut adalah metode beda hingga. Dalam makalah ini dibahas mengenai pembentukan model matematika gelombang pasang surut dan implementasinya, yaitu perhitungan numerik dengan metode beda hingga dengan simulasi grafiknya. Kata kunci: beda hingga, gelombang pasang surut, simulasi

Research paper thumbnail of Dynamics of Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response and Additive Allee Effect

International Journal of Ecology and Development (IJED), 2016

In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-D... more In this paperwe discuss the dynamics of a modified Leslie-Gower predation model with Beddington-DeAngelis functional response and additive Allee effect on prey.Particularly we discuss the existence condition for each equilibrium point, localstability and global stability of the equilibria.It is shown that the model has none, one or two positive equilibria.The permanence of the system is examined.We address that in certain conditions, the model exhibitsa bistability phenomenon. Finally, we perform some numerical simulations toconfirmour analytical results.

Research paper thumbnail of The Influence of Profitability and Solvency Ratios on Stock Prices with Inflation as Moderating Variable (Case Study on BUMN

International Journal of Technology And Business (IJTB), 2019

This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt ... more This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE) and Debt to Equity Ratio (DER) on stock prices with inflation as a moderating variable in construction sector and basic industry companies which are listed on the Indonesia Stock Exchange during the period 2014-2018. This research is a quantitative study using multiple linear regression methods, t test and coefficient of determination test. Previously, the classical panel data assumption test which included normality test and multicollinearity test was conducted. Whereas the problem of heteroscedasticity and autocorrelation can be overcome by the Generalized Least Square (GLS) method. There are 8 SOE (state-owned enterprises) construction and basic industry companies listed on the Indonesia Stock Exchange as research objects. The results of this study indicate that the Return on Assets (ROA) of several BUMN companies observed during the 2014-2018 period had a positive effect on their share prices, while the Return on Equity (ROE) and Debt to Equity Ratio (DER) of these companies had no effect significantly to the share prices. The results of this study also show that inflation does not moderate the ROA and DER relationship of several SOE companies which are observed to the share prices. On the other hand, inflation can weaken the effect of ROE on the share prices of several BUMN companies observed.

Research paper thumbnail of Analisa Statistik SPSS Lengkap Dengan Variabel Kontrol

ESQ Business School, 2018

Analisa Statistik SPSS Lengkap Dengan Variabel Kontrol