Using equation (2), (3) and (4), the software DEAP 2.1 shows that, in
overall, and the productivity of Thai banks is on the increasing trend. For the
whole 2007-2010 period, most of the efficiency changes are slightly greater than
one, meaning that every year these banks can only gain small improvements, less
than five percent of the previous years (see Table 3). It is different from previous
studies on the effect of the crisis 1997, where the post-crisis efficiency scores were
lower than pre-crisis ones. This suggests that effect of the recent 2007 global crisis
had not as strong as in the regional crisis 1997.