Similar analyses have then be performed substituting to X, in equations (12) to (15), firstly
the index that identifies firms that have both upstream and downstream contacts with the
same geographical area, then the index that indicates trade flows with North America and
Western Europe. Results are displayed in Figure 4 and 5.
Fig. 4 Kernel densities of TFP
Same Destination and reweighted density
Fig. 5 Kernel densities of TFP
Trade with North and reweighted density
---------- North=1
----North=0
--------- North=1 reweighted
30