Document Type : Research Paper
Authors
1 Ph.D. Student in Theoretical Economics (Finance), Allameh Tabataba'i University, Tehran, Iran
2 Professor, Department of Theoretical Economics, Allameh Tabataba'i University, Tehran, Iran
3 Associate Professor, Business Economics, Allameh Tabataba`i University, Tehran, Iran
Abstract
Oil prices and other oil-products prices are connected to each other and their price volatilities are parallel. Firms which are using crude oil in their products are facing a risk of price volatility which has different reactions in each era and is known under different oil regimes. For example lubricant industry is completely connected to the oil price. With this philosophy when the economy faced volatility the market players faced loss and so to overcome this issue they began to hedge themselves with another commodity. This hedging process in different regimes has different rates. So there is a need to introduce a new model. From the work of Hamiltonian (1989) oil price has its own volatility and regimes so to this attitude there is an effort to calculate an efficient hedging ratio with regime switching dynamic constant correlation. In this article, monthly data of oil and gold prices for about 10 years from 2010 till 2020 is used and the model is programed with MATLAB. The result showed that the efficient hedge ratio for the first regime (first major change in price of two markets) is 66 percent and the second (second major change in price of two markets) one is 26 percent.
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Main Subjects
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