Efficiency
is one of thepartial
objectives when we look for the suitability of any option to find the optimal
option. If more than one option leads to a comparable effect, the decision maker
looks for that one that promises the lowest input. Or when he wants to invest a
certain input, he hopes to receive an output that is as high as possible. These
are two opposite poles of efficiency; between them all combinations are
possible.
In the decision-making
model for forest harvesting operations, efficiency occurs under tree contexts:
· Economic efficiency (or simply
efficiency) demands to spare money. The cheapest option is the best under point
of view of efficiency. It can be calculated by machine cost calculation.
· With the ecological efficiency, the
ecological input is the crucial “currency”. For example, energy consumption and
grey energy can be seen as important criteria. In case of forest operations,
the forest soil, which is compacted by the machines, can be seen as the most important
input variable. We call it eco-efficiency.
· The word social efficiency sound hard
and somehow anti-social. But it means that the social resource, the workers,
are treated with care so that they don't suffer from the operations. Therefore,
we prefer the word ergonomics, which means the health care and safety
from accidents during the work.
