“…Peters et al (2012) and Sato (2013) provide overviews of data and techniques used in these papers and note that findings are overall robust across studies. A series of paper focuses on specific countries (mainly China, Japan, US, UK), or country pairs, to accommodate the increasing political interest (Shui and Harriss 2006, Ackermann et al 2007, Dietzenbacher and Mukhopadhyay 2007, Li and Hewitt 2008, Liu et al 2010, Xu et al 2011, Dietzenbacher et al 2012, Zhang 2012, Lopez et al 2013, Barrett et al 2013). Yet, Jakob et al 2013and Jakob and emphasize that one should be careful when interpreting net emission transfers and their effects on overall emissions.…”