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| Schreinemachers, Pepijn; Berger, Thomas; Sirijinda, Aer; Praneetvatakul, Suwanna. |
| This paper studies the diffusion of greenhouse agriculture in a watershed in the northern uplands of Thailand by applying econometrics and agent-based modeling in combination. Adoption has been rapid by farmers in the central valley of the watershed, while farmers at higher altitudes, lacking transferable land titles that could serve as mortgage collateral, have been unable to obtain loans for greenhouse investment. The objectives of the paper are both methodological and empirical. On the methodological side, it shows that econometrically estimated models of farm household behavior are useful to design and to parameterize an agent-based model. On the empirical side, simulation results show that if mortgage collateral would not be required, then adoption in... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Innovation diffusion; Technology adoption; Multi-agent systems; MP-MAS; Agricultural and Food Policy; Consumer/Household Economics; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Q12; Q16; C6. |
| Ano: 2009 |
URL: http://purl.umn.edu/50899 |
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| Berger, Thomas; Schreinemachers, Pepijn. |
| Bioeconomic farm models have been very instrumental in capturing the technical aspects of human-nature interactions and in highlighting the economic consequences of resource use changes. They may elucidate the tradeoffs that farm households face in crop choice and farming practices, assess the profitability of various land-use options and capture the internal costs of adjusting to changes in environmental and market conditions. But they face also limitations when it comes to analyzing situations, in which heterogeneity of households and landscapes is large and increasing. Multi-agent models building on the bioeconomic farm approach hold the promise of capturing more fully the heterogeneity and interactions of farm households. The fulfillment of this... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2006 |
URL: http://purl.umn.edu/25577 |
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| Yilma, Tsegaye; Berger, Thomas. |
| There is a downward spiral of declining soil fertility, low crop yield and increasing poverty in the less-favored areas of SSA. The semi-arid tropics of northern Ghana share this episode. The soils in this part of the country are naturally less endowed, have little organic matter content and farmers use very little inorganic fertilizer. Existing studies indicate that the erratic nature of rainfall in the area increases risk and constrains farmers' investment on inorganic fertilizer. However, agronomic studies suggest that promotion of sustainable use of inorganic fertilizer is indispensable at least in the short to medium term to break the downward spiral. Therefore, promoting sustainable use of inorganic fertilizer use remains to be a policy challenge.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy; Q15; Q16; Q18. |
| Ano: 2006 |
URL: http://purl.umn.edu/25701 |
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| Schreinemachers, Pepijn; Berger, Thomas. |
| Existing microeconomic models for simulating poverty heavily rely on static projection from statistical inference. When used for simulation these models tend to conceive farm households as passive victims and thereby underestimate their resilience and adaptive capacity. Farming systems research has much to contribute to the research on poverty by bringing in a detailed understanding of farm household decision-making, which directly relates to their adaptive capacity. This paper presents a novel methodology to simulate poverty dynamics using a farming systems approach. The methodology is based on mathematical programming of farm households but adds three innovations: First, poverty levels are quantified by including a three-step budgeting system, including... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Security and Poverty. |
| Ano: 2006 |
URL: http://purl.umn.edu/25479 |
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| Schreinemachers, Pepijn; Potchanasin, Chakrit; Berger, Thomas; Roygrong, Sithidech. |
| Litchi is an important crop in the mountainous part of northern Thailand yet its profitability has declined during the last 15 years. The replacement of litchi fruit orchards for seasonal flowers and vegetables has external costs related to increased levels of soil erosion, pesticides, and irrigation water use. Using a combination of financial analysis and agent-based modeling, the paper ex-ante assesses the impact of four technologies—artificial flower induction, small-scale cooperative fruit drying, post-harvest treatments to extend the shelf-life of fresh fruits, and greater irrigation efficiency—in terms of profits, farm incomes, litchi acreage, soil erosion, and pesticide use. The model was calibrated to one watershed in Chiang Mai province where... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Ex-ante technology assessment; Innovation adoption; Agent-based modeling; Bio-economic models; Consumer/Household Economics; Environmental Economics and Policy; Farm Management; Q12; Q16. |
| Ano: 2009 |
URL: http://purl.umn.edu/50954 |
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