More precisely, we calculate a chain Laspeyres index where the weights are updated annually by using the expenditure shares of the different energy sources as weights.
Using the expenditure approach, detailed questions were asked to determine the income of each household.
For this reason, an economist would be wary of using the expenditure of $100,000 for surgeons and $250,000 for the operating room as the opportunity cost of these resources.
The hybrid model uses the expenditure cost of these activities to estimate their environmental impacts.
6 Results using the total expenditures yield also similar results (available from the authors) but we have used household income to reflect better the income distribution.
You can estimate this by using the "capital expenditures" figure on the company's cash flow statement.
Resting energy expenditure was calculated using the equation: Expenditure = (3.815 + 1.232 x VO2/VCO2) x VO2.
Leisure time physical activity was estimated using the energy expenditure during exercise [MET (kcal/kg/week) = duration*frequency*intensity].
We do, however, believe that the cost of ICU treatment must be studied using the actual expenditure in the ICU, not the hospital charges.
Table 6 presents the percentage of household types with estimated per capita monthly expenditure patterns, using the mid-point of expenditure categories as a starting point.
