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| Registros recuperados: 26 | |
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| Balmann, Alfons; Happe, Kathrin. |
| During the last decade a new modeling approach, known as agent-based modeling, was developed and made its way into several areas of research. It greatly benefited from rapid developments in computing technology. As for economics, agent-based modeling is based on the observation that social systems can be understood and modeled explicitly as systems of interacting agents. Because of their flexibility with respect to the representation of agents, the interactions between agents as well as the resulting dynamic and spatial relationships, these models offer a great variety of perspectives for future research. In this contribution, the underlying modeling concept is presented, and exemplary applications to the field of sector and policy analysis are discussed.... |
| Tipo: Journal Article |
Palavras-chave: Agent-based modeling; Agent-based systems; Policy analysis; Sector modeling; Agricultural and Food Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/99009 |
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| Balmann, Alfons; Curtiss, Jarmila; Dautzenberg, Kirsti; Happe, Kathrin; Huang, Jikun; Swinnen, Johan F.M.; Rozelle, Scott; Sedik, David J.; Ciaian, Pavel; Vranken, Liesbet; Doitchinova, Julia M.; Kanchev, Ivan; Miteva, Albena; Bachev, Hrabrin Ianouchev; Forgacs, Csaba; Guo, Hongdong; Ferto, Imre; Jolly, Robert W.; Zhu, Jianhua; Falkowski, Jan; Milczarek, Dominika; Peyerl, Hermann; Breuer, Gunter; Danilowska, Alina; Zawojska, Aldona; Ramanovich, Mikhail; Hemme, Torsten; Mirzaei, Farhad; Heidelbach, Olaf; Balkhausen, Oliver; Banse, Martin; Perekhozhuk, Oleksandr; Grings, Michael; Luka, Oksana; Epstein, David B.; Naydenov, Nikolay; Sauer, Johannes; Balint, Borbala; Il'ina, Natalia; Svetlov, Nikolai M.; Weitzel, Enno-Burghard; Bayaner, Ahmet; Bakucs, Lajos Zoltan; Hockmann, Heinrich; Cechura, Lukas; Herzfeld, Thomas; Glauben, Thomas; Azzarri, Carlo; Carletto, Calogero; Davis, Benjamin; Zezza, Alberto; Nivievskyi, Oleg; von Cramon-Taubadel, Stephan; Newton, Claire; Bednarikova, Zuzana; Doucha, Tomas; Travnicek, Zdenek; Fock, Theodor. |
| Since the late 1980s, agriculture in Central and Eastern European Countries (CEECs) has been under considerable adjustment pressure due to changing political, economic and institutional environments. These changes have been linked to the transition process, as well as the ongoing integration into the European Union and the world market. Reduced subsidies, increased environmental and food quality demands, as well as structural changes in the supply, processing and food retailing sector call for major structural adjustments and the improvement of farmers’ managerial abilities. Though such changes always carry significant threats to farms, they also offer new opportunities for the farms' entrepreneurial engagement. Upcoming changes in the agricultural... |
| Tipo: Book |
Palavras-chave: Agribusiness; Community/Rural/Urban Development; Farm Management; Industrial Organization; International Development; Labor and Human Capital; Land Economics/Use; Productivity Analysis. |
| Ano: 2006 |
URL: http://purl.umn.edu/93012 |
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| Petrick, Martin; Balmann, Alfons. |
| VORWORT DER HERAUSGEBER Martin Petrick, Alfons Balmann Dieses Discussion Paper enthält die Kurzfassungen der Beiträge, die im Rahmen des Workshops zur Agrarentwicklung in Mittel- und Osteuropa für Doktoranden und Post-Doc's vorgestellt und diskutiert werden sollen. Dieser Workshop findet nach der erfreulichen Reso-nanz im vergangenen Jahr nun zum zweiten Mal, vom 17. bis 19. Juni 2004, am IAMO statt, wobei die Anzahl der eingereichten Beiträge noch über dem Wert des Vorjahres lag. Ziel der Veranstaltung ist es, Nachwuchswissenschaftlern die Möglichkeit zu geben, Ihre Forschungs-vorhaben zu präsentieren und zu diskutieren. Die folgenden Kurzfassungen sollen allerdings nicht nur als Diskussionsgrundlage für den Workshop dienen, sondern auch einen... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Development. |
| Ano: 2004 |
URL: http://purl.umn.edu/14885 |
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| Curtiss, Jarmila; Petrick, Martin; Balmann, Alfons. |
| This Discussion Paper contains the contributions to be presented at the "Workshop zur Agrarentwicklung in Mittel- und Osteuropa für Doktoranden und Post-Docs" to take place at IAMO from 11 to 13 July, 2005. After last year's positive reception, the workshop will be held for the third time, and again enjoys a respectable number of contributions. The aim of the event is to provide young scientists with the opportunity to present and discuss their research. The following short versions of the contributions shall not only serve as a basis for discussion during the workshop, but also offer a cross-sectional overview of current research on agriculture in Central and Eastern Europe being done by young scientists. Although a broad spectrum of issues is covered,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Development. |
| Ano: 2005 |
URL: http://purl.umn.edu/14936 |
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| Petrick, Martin; Balmann, Alfons; Lissitsa, Alexej. |
| Dieses Discussion Paper enthält die Kurzfassungen der Beitrsge, die im Rahmen des Workshops zur Agrarentwicklung in Mittel- und Osteuropa fur Doktoranden und Post-Doc's vorgestellt und diskutiert werden sollen. Dieser Workshop mochte Nachwuchswissenschaftlern die Moglichkeit geben, Ihre Forschungsvorhaben zu prssentieren und zu diskutieren. Er findet erstmalig in dieser Form am IAMO statt. Die folgenden Kurzfassungen sollen allerdings nicht nur als Diskussionsgrundlage fur den Workshop dienen, sondern auch einen Querschnittsuberblick uber die gegenwsrtige Nachwuchsforschung im Agrarbereich zu Mittel- und Osteuropa vermitteln. Wir denken, dass ein breites Spektrum von relevanten Themen bearbeitet wird. Dies entspricht einerseits dem interdisziplinären... |
| Tipo: Working or Discussion Paper |
Palavras-chave: International Development. |
| Ano: 2003 |
URL: http://purl.umn.edu/14934 |
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| Kataria, Karin; Curtiss, Jarmila; Balmann, Alfons. |
| This paper aims to identify drivers of physical capital adjustments in agriculture. It begins with a review of some of the most important theories and modelling approaches regarding firms’ adjustments of physical capital, ranging from output-based models to more recent approaches that consider irreversibility and uncertainty. Thereafter, it is suggested that determinants of physical capital adjustments in agriculture can be divided into three main groups, namely drivers related to: i)expected (risk-adjusted) profit, ii) expected societal benefits and costs and iii) expected private nonpecuniary benefits and costs. The discussion that follows focuses on the determinants belonging to the first group and covers aspects related to product market conditions,... |
| Tipo: Working Paper |
Palavras-chave: Drivers; Agriculural physical capital; Theoretical framework; Hypotheses; Farm Management; Risk and Uncertainty. |
| Ano: 2012 |
URL: http://purl.umn.edu/122842 |
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| Kellermann, Konrad; Balmann, Alfons. |
| Land markets play a crucial role in agricultural structural change. Because the dynamics of structural change and land markets, respectively, mainly depend on the interactions between individual farms, agent-based modeling (ABM) has been established as a tool for understanding and explaining structural change and land market dynamics. This is particularly so because of ABM's ability to capture heterogeneity, non-convexity and dynamics. Unfortunately, the behavioral foundation of economic actors in ABM, i.e., of the farms, is often specified as ad hoc or simply based on "expert knowledge". In this contribution, the highly-detailed ABM AgriPoliS - which uses a myopic normative behavioral foundation - is coupled with a genetic algorithm (GA) to detect market... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agent-based modeling; Genetic algorithms; Land markets; Behavioral economics; Land Economics/Use; Q12; C6. |
| Ano: 2006 |
URL: http://purl.umn.edu/25446 |
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| Balmann, Alfons; Musshoff, Oliver. |
| Applications of the real options approach hardly consider investment returns to be the result of competitive markets such as markets for agricultural products. The reason is probably that Dixit and Pindyck (1994, ch. 8) show in their very popular book "Investment under Uncertainty" that the investment triggers of firms in competitive markets are equal to those of firms with exclusive options. In this study, however, it is shown that this result is restricted to markets in which assets have infinite lifetime. If assets are subject to depreciation and subsequent reinvestment opportuni-ties, competition leads to significantly lower investment triggers. The reason is that depreciation of replaceable assets allows to compensate the potential decline in returns... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2002 |
URL: http://purl.umn.edu/19897 |
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| Graubner, Marten; Balmann, Alfons; Sexton, Richard J.. |
| Agricultural markets often feature significant transport costs and spatially distributed production and processing which causes spatial imperfect competition. Spatial economics considers the firms’ decisions regarding location and spatial price strategy separately, usually on the demand side, and under restrictive assumptions. Therefore, alternative approaches are needed to explain, e.g., the location of new ethanol plants in the U.S. at peripheral as well as at central locations and the observation of different spatial price strategies in the market. We use an agent-based simulation model to analyze location and spatial pricing in a general model under multi-firm competition, two-dimensional space, and a continuum of potential price strategies. The... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Spatial competition; Location; Price discrimination; Oligopsony; Simulation; Industrial Organization; Research Methods/ Statistical Methods; C63; Q11; R32. |
| Ano: 2010 |
URL: http://purl.umn.edu/61225 |
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| Ostermeyer, Arlette; Balmann, Alfons. |
| Path dependence is a phenomenon which can also be observed in agriculture. Especially structures in German dairy farming are very heterogeneous. The abolishment of the milk quota system in 2015 offers opportunities and challenges for dairy farmers at the same time. Our research aim is to find out to what extent a changing policy environment will affect structural change in the dairy sector. Therefore it is interesting to build different scenarios to analyse path dependence, path breaking and path craetion. In this contribution we focus on results from a first workshop in our German study region Altmark. We used participatory methods for the analysis of mechanisms, trends and policy effects in the regional dairy sector. In this first stakeholder workshop we... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2011 |
URL: http://purl.umn.edu/114578 |
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| Registros recuperados: 26 | |
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