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  <title>PENERAPAN METODE ROUTH-HURWITZ UNTUK MENENTUKAN KESEIMBANGAN PASAR TIGA MACAM PRODUK MELALUI SISTEM PERSAMAAN DIFERENSIAL BIASA</title>
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  <namePart>Maulida Agusti Rahmi</namePart>
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   <roleTerm type="text">Primary Author</roleTerm>
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  <place>
   <placeTerm type="text">Banda Aceh</placeTerm>
   <publisher>Universitas Syiah Kuala</publisher>
   <dateIssued>2021</dateIssued>
  </place>
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  <languageTerm type="text">Indonesia</languageTerm>
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 <note>Keseimbangan pasar merupakan kondisi dimana jumlah barang yang diminta sama&#13;
dengan jumlah barang yang ditawarkan. Pada posisi keseimbangan ini akan tercipta&#13;
harga keseimbangan (equilibrium price) dan jumlah keseimbangan (equilibrium&#13;
quantity). Harga dalam suatu pasar sangat mempengaruhi interaksi antara&#13;
permintaan dengan penawaran sehingga berpengaruh juga terhadap keseimbangan&#13;
pasar. Pada kasus ini, keseimbangan pasar dikhususkan pada produk yang memiliki&#13;
hubungan penggunaan substitutif dan hubungan penggunaan komplementer.&#13;
Penelitian ini membahas bagaimana menentukan keseimbangan pasar pada tiga&#13;
macam produk yang dibentuk dalam model pasar berganda dinamik Samuelson&#13;
dengan tiga variabel. Model tersebut merupakan sistem persamaan diferensial biasa&#13;
yang menyatakan laju perubahan harga sebanding dengan selisih antara jumlah&#13;
permintaan dengan jumlah penawaran. Kestabilan keseimbangan pasar ditentukan&#13;
dengan menggunakan metode kestabilan Routh-Hurwitz. Kestabilan ini diselesaikan&#13;
melalui persamaan polinomial karakteristik yang diperoleh berdasarkan&#13;
penyelesaian solusi analitik dari model laju perubahan harga. Berdasarkan hasil&#13;
penelitian yang dilakukan, kestabilan keseimbangan pasar pada tiga macam produk&#13;
dapat dijamin kestabilannya dengan menggunakan kriteria kestabilan Routh-&#13;
Hurwitz. Hal ini dapat dilihat pada grafik dari simulasi yang dibuat, dimana grafik&#13;
dari ketiga produk tersebut menuju titik keseimbangan yang berarti bahwa grafik&#13;
berada dalam keadaan stabil.&#13;
Kata kunci:keseimbangan pasar, persamaan diferensial biasa, kestabilan Routh-Hurwit&#13;
&#13;
Market equilibrium is a condition in which the quantity of goods demanded is the&#13;
same as the quantity of goods offered. In this equilibrium position, an equilibrium&#13;
price and equilibrium quantity will be created. Prices in a market greatly affect the&#13;
interaction between demand and supply so that it also affects market balance. In this&#13;
case, market equilibrium refers to products that have substitutive use relationships&#13;
and complementary use relationships. This study discusses how to determine the&#13;
market balance of three types of products formed in the Samuelson dynamic multiple&#13;
market model with three variables. The model is a system of ordinary differential&#13;
equations which states that the rate of change in price is proportional to the&#13;
difference between the quantity demanded and the quantity supplied. The stability of&#13;
the market balance is determined using the Routh-Hurwitz stability method. This&#13;
stability is solved through the characteristic polynomial equation which is obtained&#13;
by solving the analytical solution of the rate change model. Based on the results of&#13;
the research conducted, the stability of the market balance in the three types of&#13;
products can be guaranteed stability by using the Routh-Hurwitz stability criteria.&#13;
This can be seen in the graph of the simulation made, where the graph of the three&#13;
products goes to the equilibrium point, which means that the graph is in a stable&#13;
state.&#13;
Keywords: market equilibrium, ordinary differential equation, Routh-Hurwitz stability</note>
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