An arithmetic algorithm was designed by incorporating road design data, sectional quantities, variable productivity rates and haulage distance.
In this specification, market levels are linked by downstream quantity variables among the demand equations and upstream quantity variables among the supply equations (Wohlgenant 1993).
Throughout the paper, quantity variables will be expressed in per capita terms, unless otherwise indicated.
Water quality and quantity variables obtained from a high-resolution biophysical model (Soil and Water Assessment Tool) were considered as inputs to the stream health predictive models.
Based on these results and using information collected from hydrographs and pollutographs, an approach for sizing sustainable urban drainage systems (SuDS), focusing on water quality and quantity variables, has been proposed.
In the literature, there are two main methods for retrieving price data from expenditure and quantity variables: using unit values as proxy for market prices, as Abdulai ([2002]) or Akbay et al. ([2007]) did by dividing the expenditure by the quantity consumed.
For the quantity variables that exclusively concern optimizing households, per capita amounts are given simply by (Z_t= 1-mu )Z_t= 1-muhere (Z_t^o {k_t, B_t/P_t, I_t, D_t, I_{At}, I_{Bt}}) and (Z^o_tin {k^o_t, B^o_t/P_t, I^o_t, D^o_t, I^o_{At}, I^o_{Bt}}).
The frequency and quantity variables were converted into the quantities of foods consumed.
The quantity variables were also divided into quartiles based on the corresponding distribution in the controls.
The frequency and quantity variables were expressed in terms of quantities of foods consumed per day (g day−1).
