“…Except recognizing the absolute values of LAP reduction as a type of co-benefit, majority of related research conduct "air-health pathway" to evaluate improvement of human health, either in physical item (Rydal et al, 2007) or monetary item (Cifuentes et al, 1999;Dessus and O'connor, 2003;Aunan et al, 2004). Additionally, cost saving relevant to air pollution control is another type of co-benefits induced by air pollution reductions which attracts attention mainly from studies in Europe (Alcamo et al, 2002;van Vuuren et al, 2006;Rive, 2010).…”