Its formula is (7) φ = M d M The network reciprocity in 2007, 2012 and 2017 is 0.696, 0.704 and 0.730, respectively, as measured by Eq ( 7 ) and UCINET software, and the reciprocity coefficient of the converged network has been above 0.65 and shows an increasing trend with time.
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A study measuring the degree of integration between the digital economy and logistics industry in China.
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