Individual farm accountancy data sources such as the European Farm Accountancy Data Network (FADN... more Individual farm accountancy data sources such as the European Farm Accountancy Data Network (FADN) include no specific information on the spatial location of farms. However, spatial characteristics and site conditions determine the farms ’ production potential and its influence on the surrounding environment. Spatially explicit models that make use of the FADN data need to be able to recreate a landscape including the location of the farms in a plausible way. This paper investigates the minimum sample size of farm locations required to insure the ability to reproduce a reliable map of a given region. This is done by analysing relative locations between all the 1871 farms present in the Danish river Gudenå watershed. As we have detailed information about each of the farms we can categorize the farms in groups in a way similar to what one would be able to do with farms from a FADN sample. By utilising the rich information that the FADN sample contains to create a multidimensional spat...
This paper investigates the effect of competition in a market consisting of interlinked economic ... more This paper investigates the effect of competition in a market consisting of interlinked economic agents. In particular, the effect of increased competition from the surrounding markets is demonstrated. The presented work is an extension of the Bak-Sneppen model (Bak and Sneppen 1993). Here are two Bak-Sneppen models interlinked such that if the lowest fitness value of one market exceeds the fitness values of the other market minus transportation cost, all cells lower than this band will receive a new random value. The model shows that interdependency between markets has a strong effect on the competitiveness of the least competitive market. The external competition is able to make the least competitive market perform better as well as worse than on its own.
This paper describes a cost function approach to modelling production and resource use at the lev... more This paper describes a cost function approach to modelling production and resource use at the level of the individual farm firm. The procedure for deriving the supply function using mathematical programming under fairly general condition of a convex input set is shown, ...
Rural Landscapes and Agricultural Policies in Europe, 2009
Page 1. UNIVERSITYOFAARHUS Faculty of Agricultural Sciences Scaling from farm to landscape -metho... more Page 1. UNIVERSITYOFAARHUS Faculty of Agricultural Sciences Scaling from farm to landscape -methods to model Nitrogen-and greenhouse gas balances in European landscapes By Tommy Dalgaard, corresponding author. Dept. ...
This paper investigates the effect of competition in a market consisting of interlinked economic ... more This paper investigates the effect of competition in a market consisting of interlinked economic agents. In particular, the effect of increased competition from the surrounding markets is demonstrated. The presented work is an extension of the Bak-Sneppen model (Bak and Sneppen 1993). Here are two Bak-Sneppen models interlinked such that if the lowest fitness value of one market exceeds the fitness values of the other market minus transportation cost, all cells lower than this band will receive a new random value. The model shows that interdependency between markets has a strong effect on the competitiveness of the least competitive market. The external competition is able to make the least competitive market perform better as well as worse than on its own.
Individual farm accountancy data sources such as the European Farm Accountancy Data Network (FADN... more Individual farm accountancy data sources such as the European Farm Accountancy Data Network (FADN) include no specific information on the spatial location of farms. However, spatial characteristics and site conditions determine the farms ’ production potential and its influence on the surrounding environment. Spatially explicit models that make use of the FADN data need to be able to recreate a landscape including the location of the farms in a plausible way. This paper investigates the minimum sample size of farm locations required to insure the ability to reproduce a reliable map of a given region. This is done by analysing relative locations between all the 1871 farms present in the Danish river Gudenå watershed. As we have detailed information about each of the farms we can categorize the farms in groups in a way similar to what one would be able to do with farms from a FADN sample. By utilising the rich information that the FADN sample contains to create a multidimensional spat...
This paper investigates the effect of competition in a market consisting of interlinked economic ... more This paper investigates the effect of competition in a market consisting of interlinked economic agents. In particular, the effect of increased competition from the surrounding markets is demonstrated. The presented work is an extension of the Bak-Sneppen model (Bak and Sneppen 1993). Here are two Bak-Sneppen models interlinked such that if the lowest fitness value of one market exceeds the fitness values of the other market minus transportation cost, all cells lower than this band will receive a new random value. The model shows that interdependency between markets has a strong effect on the competitiveness of the least competitive market. The external competition is able to make the least competitive market perform better as well as worse than on its own.
This paper describes a cost function approach to modelling production and resource use at the lev... more This paper describes a cost function approach to modelling production and resource use at the level of the individual farm firm. The procedure for deriving the supply function using mathematical programming under fairly general condition of a convex input set is shown, ...
Rural Landscapes and Agricultural Policies in Europe, 2009
Page 1. UNIVERSITYOFAARHUS Faculty of Agricultural Sciences Scaling from farm to landscape -metho... more Page 1. UNIVERSITYOFAARHUS Faculty of Agricultural Sciences Scaling from farm to landscape -methods to model Nitrogen-and greenhouse gas balances in European landscapes By Tommy Dalgaard, corresponding author. Dept. ...
This paper investigates the effect of competition in a market consisting of interlinked economic ... more This paper investigates the effect of competition in a market consisting of interlinked economic agents. In particular, the effect of increased competition from the surrounding markets is demonstrated. The presented work is an extension of the Bak-Sneppen model (Bak and Sneppen 1993). Here are two Bak-Sneppen models interlinked such that if the lowest fitness value of one market exceeds the fitness values of the other market minus transportation cost, all cells lower than this band will receive a new random value. The model shows that interdependency between markets has a strong effect on the competitiveness of the least competitive market. The external competition is able to make the least competitive market perform better as well as worse than on its own.
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