Evaluation of risk factors in the development of the viticulture and wine sector in the Republic of Moldova (compared to Ukraine, Romania, Czech Republic, Germany)

. The viticulture and winemaking sector of the Republic of Moldova is important and strategic for the national economy. The successful activity of enterprises in the viticulture and winemaking sector is closely related to some factors - risk factors. During the 2020-2022 years, enterprises from the Moldova, Ukraine, Romania, the Czech Republic, Germany, with viticulture and winemaking activities, were surveyed. Criteria for assessing risk factors ranged from 1.0 (low) to 5.0 (high). As a result of data processing, the following total average results were obtained - economic factors - Moldova - 4.08, Ukraine - 4.56, Romania - 3.92, Czech Republic - 3.51, Germany - 2.53; political factors - Moldova - 4.04, Ukraine - 4.82, Romania - 4.01, Czech Republic - 3.68, Germany - 2.86; technological factors - Moldova - 4.10, Ukraine - 4.02, Romania - 4.00, Czech Republic - 4.06, Germany - 3.60; environmental factors - Moldova - 4.06, Ukraine - 4.13, Romania - 3.75, Czech Republic - 3.24, Germany - 2.13; legislative factors - Moldova - 4.05, Ukraine - 4.60, Romania - 4.06, Czech Republic - 4.02, Germany - 4.00; information factors - Moldova - 4.02, Ukraine - 4.46, Romania - 3.48


Introduction
The viticulture and wine sector, in complex with all components of the agri-food sector, are strategic in the Republic of Moldova, but also in other countries worldwide.The development of entities depends on a series of risk factors of different nature [1][2][3][4][5][6][7][8].
The risks in agri-food sector were studied by the many researchers, which divided their opinions variously.For real use of opportunities, it is necessary that decisionmakers are able to correctly assess the level of risks, choose a sound strategy and tactics of economic activity in a market environment [9].
In different studies K. Murtazova [10] considered that the environmental and economic efficiency characterizes the aggregate economic performance of the agricultural production process, taking into account its impact on the environment.
As a result of their studies, O. Keichinger and M. Thiollet-Scholtus [11] established that to check to test the effect of innovative viticultural systems on the socioeconomic component of sustainability by taking into account measurable data (working time, treatment program, cost, etc.) but also the feelings of the winegrower the latter point being very important in the appropriation of innovation in its success and in its sustainability.
The purpose of this article is to evaluate of risk factors in the development of the viticulture and wine sector in the Republic of Moldova (compared to Ukraine, Romania, Czech Republic, Germany).
The main objective consists in determining the degree of influence of the factors in the group and individually, and establishing the correlation between them.Specialized software (Statistica) and MS Excel were used to process the experimental data.We determined the linear regression for the experimental data according to the model:

Results and Discussions
The risks, but also the performance factors in the development of entities, are of an economic, political, technological, environmental, informational and human resources nature.The evaluation questionnaire was included the following groups, subgroups and risk categories:  Analysing the data reflected in Figs 1 and 2, it can be seen that the highest value for all subgroups and risk categories obtained to entities from Ukraine, followed by Moldova, Romania and the Czech Republic.Germany reflected the lowest risk assessment values.

F. The group of risks according to the scope of occurrence on which the fields of entrepreneurial activity are based
Compared to the data of C group of the agri-food sector, for the wine sector we obtained higher values, except for the group of technological factors.
The correlation coefficient r=0,64, the determination coefficient R 2 =0,41, but the linear regression equation for the entities from the viticulture and wine making sector obtained the form:    Analysing the data reflected in Figs. 3 and 4, the highest value for all subgroups and risk categories obtained to entities from Ukraine, followed by Moldova, Romania and the Czech Republic.Germany reflected the lowest risk assessment values.
Compared to the data of D, E, F, H groups of risks or performance factors of the agri-food sector, for the wine sector we obtained higher values, except for the group of financial activities factors.
The correlation coefficient r=0,82, the determination coefficient R 2 =0,67, but the linear regression equation for current risks (Fig. 15), for the entities from the viticulture and wine making sector obtained the form: The correlation coefficient r=0,96, the determination coefficient R 2 =0,92, but the linear regression equation for human resources risks (Fig. 16), for the entities from the viticulture and wine making sector obtained the form: Y=3,47+0,79X 1 +1,58X 2 +0,33X 3 +2,21X 4 +0,68X 5 + 0,72X 6 +3,21X 7 (16) Our previous studies in detail with reference to environmental and technological factors [13,14] gave us the opportunity to continue and deepen the study.At the same time, the studies were extended not only for the horticultural sector, but also for the agri-food sector in the complex.

Conclusions
For all risks groups the correlation coefficient (r) obtained values between 0.48 and 0.96, this proves the presence of positive medium or strong correlation.
The value from 0,23 to 0,92 of the coefficients of determination (R2) shows us the influence of the assessed factors on the development of entities in the viticulture and winemaking sector at the 23-92% level.
In collaboration with the viticulture and winemaking sector, the development policies of the sector should be coordinated with the results of our research.
This research work was carried out with the support of project "Impact of macro-environmental and geographical factors on bankruptcy and business performance of economic entities in the agri-food sector in the Republic of Moldova" under the State Program (2020-2024) with the code 20.80009.0807.26funded by the National Agency for Research and Development (WWW.ancd.gov.md).

C. Group of risks according to the main factors of occurrence C. 1 .
Subgroup of economic factors -Market/Cost of production factors/Financial assets/Exchange rate/ Inflation/Subsidies/Tax system/Other risks C.2. Subgroup of political factors -Political affiliation / President/Parlament/Government/Minister/Local public administration/National Food Safety Agency/Other risks C.3.Subgroup of technological factors -Application of technical-scientific progress/Modernization of equipment/ Technology modernization/Know-how/Land consolidation/ Rent for activity/Property/Other risks C.4.Subgroup of environmental factors -Climate changes/ Natural disasters/Landslides/Deforestation/ Drainage of water basins/Other risks C.5.Subgroup of legislative factors -National legislation/International legislation/The codes -land, water, fiscal, etc./Laws/Government decisions/Sector development programs/Technical regulations/standards/ Other risks C.6.Subgroup of information factors -Late information/ False information/Disclosure of production secrets and confidential information/Other risks C.7. Subgroup of moral factors -Marketing of expired products/Purchasing expired products/Product theft/Other risks.D. Group of risks according to their occurrence D.1.Subgroup of retrospective factors -Production errors/ Mistakes in promotion/Marketing mistakes -Other risks D.2.Subgroup of current risks -Temporary interruption of the production process -Temporary machine failures -Staff incapacity for work -Other risks D.3.Subgroup of prospective risks -Business plan/ Development strategies and policies/Other risks.E. Group of risks according to the nature of the record E.1.Subgroup of external risks -Inflation/Currency/ Nature/Other risks E.2.Subgroup of internal risks -Partners/Providers/ Consumers/Marketing strategy/Activity policy/Production potential/Technical endowment/Level of specialization/ Workforce qualification/Safety at work/Other risks.

Figure 1 .
Figure 1.The average value of evaluation of the group of risks according to the main factors of occurrence (group C) on the all entities from agri-food sector.

Figure 2 .
Figure 2. The average value of evaluation of the group of risks according to the main factors of occurrence (group C) on the entities from the viticulture and wine making sector.

Figure 3 .
Figure 3.The average value of evaluation of the group of risks according to their occurrence (group D), to the nature of the record (group E), to the scope of occurrence on which the fields of entrepreneurial activity are based (group F) and group of human resources factors (group H) on the all entities from agri-food sector.

Figure 4 .
Figure 4.The average value of evaluation of the group of risks according to their occurrence (group D), to the nature of the record (group E), to the scope of occurrence on which the fields of entrepreneurial activity are based (group F) and group of human resources factors (group H) on the entities from the viticulture and wine making sector.

Figure 5 .
Figure 5. Diagram of the economic risks assessment on the entities from the viticulture and wine making sector.

Figure 6 .
Figure 6.Diagram of the political risks assessment on the entities from the viticulture and wine making sector.

Figure 7 .
Figure 7. Diagram of the technological risks assessment on the entities from the viticulture and wine making sector.

Figure 8 .
Figure 8. Diagram of the environmental risks assessment on the entities from the viticulture and wine making sector.

Figure 9 .
Figure 9. Diagram of the information risks assessment on the entities from the viticulture and wine making sector.

Figure 10 .
Figure 10.Diagram of the legislative risks assessment on the entities from the viticulture and wine making.

Figure 11 .
Figure 11.Diagram of the moral risks assessment on the entities from the viticulture and wine making sector.

Figure 12 .
Figure 12.Diagram of the retrospective risks assessment on the entities from the viticulture and wine making sector.

Figure 13 .
Figure 13.Diagram of the current risks assessment on the entities from the viticulture and wine making sector.

Figure 14 .
Figure 14.Diagram of the prospective risks assessment on the entities from the viticulture and wine making sector.

Figure 16 .
Figure 16.Diagram of the human resources risks assessment on the entities from the viticulture and wine making sector.

Table 1 .
The structure of the analysed entities by country.
Professional staff level 4 ECTS/Professional staff level 6 ECTS/Professional staff level 8 ECTS/ Professional staff with other specialty studies/Other risks.