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Our results indicate that the impact of international copper price shocks on China's PPI is time-varying.
Journal ArticleDOI
Hesam Dehghani, Dejan Bogdanovic 
02 Nov 2017-Resources Policy
64 Citations
Finally, it is concluded that the determined equation with 0.132 of RMSE can predict the copper price better than the classic estimation methods.
We find that price differences for homogenous tradables between Canada and the U. S. are smaller than those for differentiated tradables and non-tradables, and are statistically insignificant over the period 1985 to 1999.
Open accessJournal ArticleDOI
Xinkai Fu, Stian M. Ueland, Elsa Olivetti 
30 Citations
We find that both industrial activity and world GDP correlate with total scrap supply, with limited dependence on copper price.
This study, therefore, provides new insights into price determination on the LME copper market, and resolves the ambiguity of previous research regarding the efficiency of that market.
Second, it is shown that a partially integrated copper producer may find rationing profitable as a means of partially achieving the effects of price discrimination given that price discrimination itself is infeasible.
The U. S. is more dependent on import of refined copper, except during the period in which a tight global copper market disrupted the leading copper-producing country.
The application to the U. S. refined copper market provides estimates of structural supply and demand, rational price forecasts, and the risk of copper storage that is consistent with modern portfolio theory.