Next, the initial estimates of metals t ij (k ) moving between countries in commodity trade were calculated by multiplying the international trade volume of each commodity, the assigned cutoff value and the percentage metal content: t ij (k ) = v ij (k ) × r i (k ) × c i (k ).
Hence, in this study, the trade volumes of each commodity obtained from BACI were assigned a cutoff value r i (k ) between 0 and 1, which was multiplied by the trade volume to increase the accuracy of the estimated trade volume of the commodity containing the critical metal(s) of interest.
The trade volumes of the commodities k were organized based on free on board (FOB) price (1000 US dollar/year) or weight (t/year) taking 2005 as the target year using the Base pour l'Analyze du Commerce International (BACI) or International Trade Database at the Product Level, which is an improvement of the UN Comtrade database.
The material data embodied in the GLIO are obtained by multiplying the trade volumes of each commodity by its percentage metal content as described in Nansai et al. (2014).
"The sheer size of trading volume in commodities will continue to rise globally.
The phenomenal growth in the trading volume of futures essentially risk-management instruments in commodities and financial instruments—has far outpaced that in equities in recent years, and brokerage firms have ridden the wave.Ironically, Refco's public image has not conformed to this racy stereotype.
Based on the number and volume of commodities in which active futures trading exists, the United States occupies first place.
By way of example, Figure 3 shows the trading volumes of Nd contained in the commodity HS-852520 (Transmission apparatus for radiotelephony incorporating reception apparatus) in 2005.
The proposal has exceptions for currency trading and the physical trading of commodities, but not for derivatives like currency or commodity futures contracts.
Therefore, the increasing global trade of commodities is accompanied by an increasing global trade in virtual water.
Food packaging was created to facilitate trade and transportation of commodities over long distances.
