“…Productivity heterogeneity theory has received empirical support in the studies of German, Italian, French, Irish, British, Japanese, and American firms (Arnold & Hussinger, 2010;Castellani & Zanfei, 2007;Engel & Procher, 2011;Girma, Görg & Strobl, 2004;Girma, Kneller & Pisu, 2005;Head & Ries, 2003;Helpman, Melitz & Yeaple, 2004;Kimura & Kiyota, 2006;Tomiura, 2007;Wagner, 2006). However there is no study that empirically tests this theory in the context of China.…”