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Predicting Raw Material Price Fluctuation Using Signal Approach: Application to Non-ferrous Metals  

Kim, Ji-Whan (Petroleum & Marine Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM))
Lee, Sang-Ho (Economic Survey & Forecasting Division, Korea Institute for Industrial Economics & Trade (KIET))
Publication Information
Economic and Environmental Geology / v.42, no.2, 2009 , pp. 143-152 More about this Journal
Abstract
Recent raw material prices fluctuation has been unexpectedly high and that made Korean economic activities to be depressed. Because most raw material supply in Korea depends upon oversea imports, unexpected raw material price fluctuation affects Korean industrial economies through macroeconomic variables. So Korean government enforces some political measures such as demand management and the supply-security assurance as long-range policies, and reservation and general early warning system as short-range policies. In short-range policies, it is necessary to be expected short term fluctuation. Up to recently, there have been many researches and most of those researches use parametric methods or time series analyses. Because those methods and analyses often generate inadequate relations among variables, it is possible that some consistent variables are left out or the results are misunderstood. This study, therefore, is aim to mitigate those methodological problems and find the relatively appropriate model for economic explanation. So that, in this paper, by using non-parametric signal approach method mitigating some shortages of previous researches and forecasting properly short-range prices fluctuation of non-ferrous materials are presented empirically.
Keywords
signal approach; raw material price fluctuation; early warning system; non-ferrous metal;
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