OPEN Repository

Welcome to OPEN - the Repository of Open Scientific Publications, run by the Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, previously operating as the CeON Repository. The Repository enables Polish researchers from all fields to openly share their articles, books, conference materials, reports, doctoral theses, and other scientific texts.

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22799 archived items

Recent Submissions

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Expected Utility and Prospect Theories Versus Agricultural Insurance
(Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy, 2023-03-30) Kulawik, Jacek; Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
The expected utility theory/hypothesis (EUT/ET) by von Neumann and Morgenstern has become the subject of criticism and efforts to improve it already at the moment of presenting its complete axiomatic form (1953). The broadest analysis was carried out by Kahneman and Tversky using the prospect theory (PT). However, it was not carefully prepared. The above two were helped in 1982 by Quiggin with his extension of the EUT in the form of the rank-dependent expected utility (RDEU). This was followed by Kahneman and Tversky in 1992 boasted the second version of the prospect theory, i.e., the cumulative prospect theory (CPT). It became the most competitive proposal to the EUT, although later other researchers added new elements to it. In this way, the subsequent generations of the PT were created. Today there are five in total. It soon became apparent that the PT also did not satisfactorily explain various cases of decision-making under conditions of risk and uncertainty. Upon closer analysis, however, it turned out that the PT was in fact a generalization of the EUT. Both theories are tools for modeling insurance decisions, including agriculture. In this context, the main aim of the article is to present the principles and the results of applying them in agricultural insurance. The analysis shows that the pragmatic solution at present is the combined use of both theories, with the EUT usually being the reference point.
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Key Problems of Using Subsidies Coupled with Agricultural Production
(Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy, 2022-09-29) Herda-Kopańska, Justyna; Kulawik, Jacek; Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
Subsidies based on agricultural production are a common form of subsidies in many countries, both less developed (due to their economic difficulties in achieving a satisfactory level of food self-sufficiency) and highly developed. However, at the turn of the 20th and 21st centuries, this support was not so popular. It was only in the second decade that it began to be restored, which is sometimes referred to as recoupling. The COVID-19 pandemic and the Ukrainian–Russian war are undoubtedly two important circumstances that have increased interest in these subsidies. Therefore, it is important to identify theoretical and socio-political justifications for using these subsidies and the problems related to preparing schemes for determining their unit rates. After conducting the analysis, it turned out that the microeconomic theory rather provides arguments against the wide use of agricultural production subsidies. The justifications for pursuing a policy which refers to the difficulties in particular sectors of agriculture are also unconvincing. The calculation of unit payment rates is a challenge due to the lack of a solid methodology and sufficiently reliable source data.
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Ranking 300 najlepszych przedsiębiorstw rolnych w 2016 roku
(Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy, 2018) Adamski, Marcin; Gorzelak, Aleksander; Grzybowska, Elżbieta; Herda, Justyna; Kagan, Adam; Kowalski, Andrzej; Kulawik, Jacek; Osuch, Dariusz; Soliwoda, Michał; Zdzieborska, Maria; Kulawik, Jacek; Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy we współpracy z Agencją Nieruchomości Rolnych (obecnie Krajowy Ośrodek Wsparcia Rolnictwa) od 1995 r. przygotowuje ranking najlepszych przedsiębiorstw rolniczych oraz gospodarstw rybackich. Ranking ten stanowi uszeregowanie przedsiębiorstw (gospodarstw) według ściśle określonego kryterium, co pozwala na obiektywną ocenę uzyskanych wyników finansowych. Publikacja rankingu pozwala jego uczestnikom na znalezienie odpowiednich partnerów do przyszłej współpracy, oraz innym przedsiębiorcom na uczenie się od najlepszych. W dwudziestej drugej edycji "Rankingu 300" prezentowane są wyniki finansowe najlepszych przedsiębiorstw rolnych i rybackich w 2016 roku.
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Subsidies versus economics, finances and income of farms (4)
(Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy, 2018) Soliwoda, Michał; Kulawik, Jacek; Wąs, Adam; Kobus, Paweł; Konat, Grzegorz; Kurdyś-Kujawska, Agnieszka; Sompolska-Rzechuła, Agnieszka; Płonka, Renata; Osuch, Dariusz; Soliwoda, Michał; Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy; Politechnika Koszalińska; Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Szkoła Główna Gospodarstwa Wiejskiego w Warszawie
The main objective of this monograph is to identify theoretical and methodological foundations for measuring, assessing and optimising public aid granted to farms (at the level of EU countries and individual farms in Poland), along with an attempt of empirical verification. The auxiliary objective of the monograph is to update the ex-post analysis of the impact of subsidies on the economic, income and financial situation of these entities. Chapters: Measurement, assessment and optimization of public aid granted to agricultural holdings – selected issues. Public support for agriculture of EU countries under the CAP. Scale, dynamics and trends of changes. Implications of the direct payment degressivity mechanism in the CAP 2020+ in Poland. Subsidies and other external sources of financing activity on farms – farmers’ opinions. Subsidies vs. finance and economics of farms managed by natural persons.
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Assessment of the functioning of crop and livestock insurance in Polish agriculture
(Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy, 2017) Gorzelak, Aleksander; Herda-Kopańska, Justyna; Kulawik, Jacek; Pawłowska-Tyszko, Joanna; Soliwoda, Michał; Wieliczko, Barbara; Pawłowska-Tyszko, Joanna; Instytut Ekonomiki Rolnictwa i Gospodarki Żywnościowej - Państwowy Instytut Badawczy
The study reviews and assesses functioning of subsidized crop and livestock insurance as regards the level of their use and determination of factors motivating and demotivating to conclude insurance contracts by farmers. Chapters: Risk and traditional agricultural insurance – theoretical foundations. Subsidizing agricultural insurance. Evolution of national legal provisions regarding crop and livestock insurance in 1952-2016. Assessment of the functioning of crop and livestock insurance in Poland. Income and financial situation of farms using crop and livestock insurance. Determinants of the demand for crop insurance – model approach. Impact of the purchase of insurance on selected characteristics of family farms. Viability of the purchase of crop insurance by the farm’s operator. Determinants of the demand for crop insurance, factors motivating to purchase such insurance and factors discouraging from this – results of empirical studies