Universidade Federal Rural de Pernambuco, Recife, PE
Abstract
The subject of research is the analysis of the influence value of produced agricultural goods
and provided services on gross value added (abbr. GVA) in agriculture of Serbia in the period
from 2007 until 2020. The aim of writing the paper is to establish which agricultural branch
(plant production, livestock production, or agricultural service) has the most contribution to
the creation of GVA of agriculture. The set goal was achieved by using multiple regression
methods and in a starting model are given achieved values of plant and livestock production,
while the value of agricultural services is excluded due to its low share in the total value of
agricultural production (2.5% per average year). The results of the regression model were
shown that the highest contribution to the creation of GVA of agriculture gives plant
production, which by its importance stands out from crop production until the value of
livestock production contributes creation of GVA of agriculture in significantly lowes share (value of standardized beta coefficient amounts 0.671 for plant production, ie 0.402 for
livestock production). Methods for assessments of the presence of multicollinearity between
independent variables (The Tolerance level, VIF value, and Eigen values) have shown that in
the frame of plant and livestock production exists a low level of multicollinearity, as a
consequence of the influence of livestock production, until in frame of plant production weak
multicollinearity as consequences of the influence of fruit-growing and viticulture production