96 Engineering Response to Climate Change
In this study, the same set of assumptions about gross labor participa tion
rate pathways has been made for all of the six scenarios. By implement-
ing the same gross labor participation pathways for different population
scenarios, we implicitly assume that the variation in work–age popula-
tion rate driven by different population assumptions is offset by the
variation in retirement ages or labor force participation. That is, compared
to a higher population world, a lower population world characterized by
lower work–age population rate is likely to increase its retirement age
and labor force participation in the long run, which may result in higher
labor productivity due to more experienced labor staying ...