Identifying the optimal time to replace a passenger bus in a buses fleet has implications on the size of the reserve fleet. Such calculations rest on endogenous and exogenous economic variables: the former include operating and maintenance costs and bus depreciation; the latter include market imponderables such as the inflation and real discount rates. as well as energy costs. particu... https://www.duospiritalis.com/top-deal-Serra-Avatar-Urza-s-Saga-clearance/