Growth of GVA before and after NAFTA is illustrated in figure 3. The map showing growth from
1980-85 (panel a) illustrates a higher number regionally-diverse municipalities with a growth of more
than 100% than in 98-03. In contrast, in 98-03, growth is more concentrated in clusters along the
US-Mexico Border (panel b). Some of the clusters that can be seen in the post-NAFTA map are
Chihuahua, Saltillo, and Monterrey. One can clearly identify the areas of low growth in the south
and more rapid growth in the north. Note that these maps also indicate that growth is by no means
homogenous within a state. Therefore, considering these data by municipality allows us to more
accurately discern the patterns of economic activity.