How did we calculate? We made many simplifications, but plausible in the case of applied economics. If you have any helpful suggestions we will be much appreciated!
We present our production functions in each of the three sectors:
- building materials
- automotive supplies
- textile & cloths
The formula is production cost by piece = (sum of salaries + energy/water + real-estate costs + capital charges) / production volume so
p = (aw + bm + cu + di + ek)
Whereas the variables are defined as followed
- p costs by piece in €
- w salary costs by expert worker (total labour cost / month)
- m salary costs by expert worker (total labour cost / month)
- u costs of public supply and disposal that is cubic metre water × 0,2 + gas × 0,3 + kWh electricity × 0,5
- i interest charges (real interest rate for long-term loan for five years)
- k costs of the real-estate that is square metre land acquisition in a radius of 10 km around the capital city, creation of a building with machinery and equipment, accrual to local conditions
and the coefficients as followed:
- a salary portion of costs
- b material portion of costs
- c energy intensity incl. gas and water etc. of the production
- d interest portion of costs
- e accruall portion of costs
Only the coefficients a, c and d are defined product-specific, the remaining ones are 1. Ergo the costs w, u and i, who are specific for the countries, are subscripted with Romania = 1.
Generally the sample products are mentioned, they are
- concret block
- sparkplug
- T-shirt
For supply and capital costs we have defined the basic formula.
- u = cubic metre water x 0,2 + gas x 0,3 + kWh electricity x 0,5
- k = (estate costs + plus building occupancy expenses +costs for machinery and equipment) : number of amortisation years
Due to the measured country indexes during the projects (example Romania) the followed production function are to differ:
- p I: (0,21 w + m + 0,35 u + 0,03 i + k)
- p II: (0,43 w + m + 0,25 u + 0,02 i + k)
- p III: (0,18 w + m + 0,40 u + 0,04 i + k)
- in the respective production function all the constants are together, this means m+k must be as big as 1 minus the sum of all independent variables w, u, i; so m + k = 1 – (w + u + i). The natural number which is given by m+k will be retained as a constant in the formula (for every country).
- The product price will be subscripted for Romania in the data mentioned way, and then subscripted for the other countries in the index, for example T-shirt = 1,50 varied, so Moldova-T-shirt = 1,35, Serbia-T-shirt = 1,38 and so on.