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Research paper thumbnail of Pengaruh Inflasi terhadap Strategi Optimal Investasi dan Konsumsi dengan Model Stokastik

Limits: Journal of Mathematics and Its Applications

Penelitian ini bertujuan untuk mengkaji pengaruh inflasi terhadap strategi optimal pada investasi... more Penelitian ini bertujuan untuk mengkaji pengaruh inflasi terhadap strategi optimal pada investasi dan konsumsi dengan nilai suku bunga dimodelkan menggunakan model Cox-Ingersol-Ross (CIR) dan volatilitas harga saham dimodelkan mengikuti volatilitas model Heston. Aturan program dinamik digunakan sebagai metode untuk mendapatkan persamaan Hamilton-Jacobi-Ballman (HJB) pada persamaan fungsi nilai dan memilih power utility sebagai fungsi utilitas. Solusi eksplisit dari investasi dan konsumsi optimal didapatkan dengan menggunakan teknik pemisah dan pemisalan variabel. Nilai-nilai parameter dari model didekati dengan menggunakan metode Euler-Maruyama dan metode Ordinary Least Square (OLS). Asumsikan portfolio investor terdiri atas sebuah aset berisiko dan sebuah aset bebas risiko. Data historis bulanan harga saham PT Telekomunikasi Indonesia (TLK) digunakan sebagai aset berisiko dan data historis bulanan BI 7-Day (Reverse) Repo Rate (BI7DRR) sebagai suku bunga aset bebas risiko, diperoleh hasil bahwa jumlah investasi pada saham berbanding lurus dengan imbal hasil saham dan inflasi tidak mempengaruhi jumlah investasi pada saham. Sedangkan konsumsi optimal berbanding lurus dengan jumlah kekayaan yang dimiliki namun berlaku sebaliknya terhadap inflasi ketika inflasi meningkat daya konsumsi investor menurun. Kata Kunci: program dinamik, kontrol optimal, investasi-konsumsi, CIR, Heston

Research paper thumbnail of Soliton solution of Benjamin-Bona-Mahony equation and modified regularized long wave equation

Nucleation and Atmospheric Aerosols, 2017

This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regula... more This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regularized Long Wave (MRLW) equation. BBM equation is a model describing the propagation of long wave with small amplitude on one directional space. This equation was developed to resolve the shortcoming of classic Korteweg-de-Vries (KdV) equation which fails to model the wave when the wavenumbers value is high. Meanwhile, MRLW equation represents the dispersed wave phenomenon such as shallow water and phonon packet on nonlinear crystal. The solutions of these equations are known as a solitary wave (soliton). This solution can be determined by various methods. Here, we apply the sine-cosine function method and analyze in detail the resulting solitary waves.

Research paper thumbnail of Soliton solution of Benjamin-Bona-Mahony equation and modified regularized long wave equation

AIP Conference Proceedings, 2017

This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regula... more This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regularized Long Wave (MRLW) equation. BBM equation is a model describing the propagation of long wave with small amplitude on one directional space. This equation was developed to resolve the shortcoming of classic Korteweg-de-Vries (KdV) equation which fails to model the wave when the wavenumbers value is high. Meanwhile, MRLW equation represents the dispersed wave phenomenon such as shallow water and phonon packet on nonlinear crystal. The solutions of these equations are known as a solitary wave (soliton). This solution can be determined by various methods. Here, we apply the sine-cosine function method and analyze in detail the resulting solitary waves.

Research paper thumbnail of Pengaruh Inflasi terhadap Strategi Optimal Investasi dan Konsumsi dengan Model Stokastik

Limits: Journal of Mathematics and Its Applications

Penelitian ini bertujuan untuk mengkaji pengaruh inflasi terhadap strategi optimal pada investasi... more Penelitian ini bertujuan untuk mengkaji pengaruh inflasi terhadap strategi optimal pada investasi dan konsumsi dengan nilai suku bunga dimodelkan menggunakan model Cox-Ingersol-Ross (CIR) dan volatilitas harga saham dimodelkan mengikuti volatilitas model Heston. Aturan program dinamik digunakan sebagai metode untuk mendapatkan persamaan Hamilton-Jacobi-Ballman (HJB) pada persamaan fungsi nilai dan memilih power utility sebagai fungsi utilitas. Solusi eksplisit dari investasi dan konsumsi optimal didapatkan dengan menggunakan teknik pemisah dan pemisalan variabel. Nilai-nilai parameter dari model didekati dengan menggunakan metode Euler-Maruyama dan metode Ordinary Least Square (OLS). Asumsikan portfolio investor terdiri atas sebuah aset berisiko dan sebuah aset bebas risiko. Data historis bulanan harga saham PT Telekomunikasi Indonesia (TLK) digunakan sebagai aset berisiko dan data historis bulanan BI 7-Day (Reverse) Repo Rate (BI7DRR) sebagai suku bunga aset bebas risiko, diperoleh hasil bahwa jumlah investasi pada saham berbanding lurus dengan imbal hasil saham dan inflasi tidak mempengaruhi jumlah investasi pada saham. Sedangkan konsumsi optimal berbanding lurus dengan jumlah kekayaan yang dimiliki namun berlaku sebaliknya terhadap inflasi ketika inflasi meningkat daya konsumsi investor menurun. Kata Kunci: program dinamik, kontrol optimal, investasi-konsumsi, CIR, Heston

Research paper thumbnail of Soliton solution of Benjamin-Bona-Mahony equation and modified regularized long wave equation

Nucleation and Atmospheric Aerosols, 2017

This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regula... more This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regularized Long Wave (MRLW) equation. BBM equation is a model describing the propagation of long wave with small amplitude on one directional space. This equation was developed to resolve the shortcoming of classic Korteweg-de-Vries (KdV) equation which fails to model the wave when the wavenumbers value is high. Meanwhile, MRLW equation represents the dispersed wave phenomenon such as shallow water and phonon packet on nonlinear crystal. The solutions of these equations are known as a solitary wave (soliton). This solution can be determined by various methods. Here, we apply the sine-cosine function method and analyze in detail the resulting solitary waves.

Research paper thumbnail of Soliton solution of Benjamin-Bona-Mahony equation and modified regularized long wave equation

AIP Conference Proceedings, 2017

This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regula... more This article discusses about solutions of Benjamin-Bona-Mahony (BBM) equation and Modified Regularized Long Wave (MRLW) equation. BBM equation is a model describing the propagation of long wave with small amplitude on one directional space. This equation was developed to resolve the shortcoming of classic Korteweg-de-Vries (KdV) equation which fails to model the wave when the wavenumbers value is high. Meanwhile, MRLW equation represents the dispersed wave phenomenon such as shallow water and phonon packet on nonlinear crystal. The solutions of these equations are known as a solitary wave (soliton). This solution can be determined by various methods. Here, we apply the sine-cosine function method and analyze in detail the resulting solitary waves.

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