|
|
|
| Registros recuperados: 41 | |
|
| |
|
| |
|
|
| Paris, Quirino. |
| This paper demonstrates the existence of a unique solution of the PMP problem when both observed output quantities and limiting input prices are taken as calibrating benchmarks. This version of PMP avoids the use of a user-determined small positive number ε originally introduced for guaranteeing that the dual (shadow) price of binding input constraints be positive. Furthermore, the paper shows how to obtain endogenous output supply and input demand elasticities that match available information about them in the form of previously estimated parameters for an entire region or sector. The framework is applied to a sample of farms also for the case that admits no production for some of the crop activities. The calibrating solution is very close to the observed... |
| Tipo: Working Paper |
Palavras-chave: Positive mathematical programming; Solution uniqueness; Supply elasticities; Calibrating model; Productivity Analysis; Research Methods/ Statistical Methods; C6. |
| Ano: 2015 |
URL: http://purl.umn.edu/200491 |
| |
|
| |
|
| |
|
|
| Balcombe, Kelvin George; Davidova, Sophia; Latruffe, Laure. |
| This paper employs bootstrapping to correct for bias and to construct confidence intervals for Malmquist TFP indices derived with DEA. It uses these results to investigate the productivity change in Polish agriculture during a crucial period of the country's transition to a market economy, 1996-2000, when Poland was preparing for accession to the European Union. The bias corrected estimates show regress in productivity at an annual rate of 4 percent. The confidence intervals suggest that between two-thirds and four-fifths of the sample farms (250) in different years might have experienced no change in productivity. The cluster analysis based on confidence bounds reveals three paths of productivity change. Farms which recorded an increase in productivity at... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Malmquist indices; Bootstrapping; Poland; Farms; Productivity change; Productivity Analysis; D24; Q12; C6. |
| Ano: 2005 |
URL: http://purl.umn.edu/24572 |
| |
|
| |
|
|
| Anania, Giovanni. |
| The EU Common Market Organization for bananas has been generating international controversies since its introduction in 1992. Many thought the 'banana war' had come to an end when, at the 2001 WTO Ministerial Conference in Doha, a Decision was taken for the EU to introduce, no later than 1 January 2006, a 'tariff-only regime' which ' would result in at least maintaining total market access for MFN banana suppliers'. However, proposals by the EU for a tariff-only regime have been rejected in a two-step WTO arbitration in 2005 because they were found not to satisfy this requirement. On 1 January 2006 the EU unilaterally introduced a tariff-only regime. The paper presents the main results of a modelling effort aimed at analyzing this policy issue. The... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Q17; Q18; F13; C21; C6; International Relations/Trade. |
| Ano: 2006 |
URL: http://purl.umn.edu/18854 |
| |
|
| |
|
| |
|
|
| 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 |
| |
|
|
| Lu, Wencong C.; Xi, Aiqin; Ye, Jian. |
| This paper analyzed Chinese small-scale farmer's response to agricultural risks by using MOTAD model. Based on the household's data from the two villages Wangjia and Damao in Zhejiang province, we established "representative rural household" for each of the sampling villages. The results show that farmers in Zhejiang are quite sensitive to agricultural risks. However, different farming systems, the ratio of agricultural income to total family income, as well as the size of arable land, differentiates their risk response. The decision maker's risk preference not only affects the type of agricultural activities and corresponding scales they selected, but also have further effects on the micro agricultural production structure and stable growth of household's... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farming household; Agricultural risks; Risk response; MOTAD Model; Farm Management; Risk and Uncertainty; D1; C6; D2. |
| Ano: 2006 |
URL: http://purl.umn.edu/25656 |
| |
|
|
| Athanassoglou, Stergios; Sheriff, Glenn; Siegfried, Tobias; Tim Huh, Woonghee. |
| Standard economic models of groundwater management impose restrictive assumptions regarding perfect transmissivity (i.e., the aquifer behaves as a bathtub), no external effects of groundwater stocks, observability of individual extraction rates, and/or homogenous agents. In this article, we derive regulatory mechanisms for inducing the socially optimal extraction path in Markov perfect equilibrium for aquifers in which these assumptions do not hold. In spite of the complexity of the underlying system, we identify an interesting case in which a simple linear mechanism achieves the social optimum. To illustrate potential problems that can arise by erroneously imposing simplifying assumptions, we conduct a simulation based on data from the Indian state of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Common Property Resource; Differential Games; Groundwater Extraction; Imperfect Monitoring; Markov Perfect Equilibrium; Environmental Economics and Policy; C6; D0. |
| Ano: 2011 |
URL: http://purl.umn.edu/102502 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
| |
|
| |
|
| |
| Registros recuperados: 41 | |
|
|
|
