Price Developments  Commodity Prices and Prices of Transactions among Businesses International Commodity Prices 300  monthly avg., CY 2015 = 100  Producer Prices in Japan 10  Crude oil (Dubai)  y/y % chg.  8 6  Copper  4  200  2 0 -2 100  -4 -6 -8  0 CY06  08  10  12  14  16  18  20  -10 CY 06  08  10  12  14  16  18  20  Note: In the right-hand chart, figures are the producer price index (PPI) for all commodities (adjusted to exclude the effects of the consumption tax hike).
Sources: Bloomberg; Bank of Japan. 6  Chart 7  II.