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. 2015 Nov 6;41:348–366. doi: 10.1016/j.trd.2015.09.007

Fig. 5.

Fig. 5

Experience curves for e-bikes in China (a) and Germany and the Netherlands (b); numbers in parentheses indicate the year of observation; error bars indicate the standard deviation of price data (Data sources: see Table S2 in the Supplementary Material).