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Mayo - 2009 Número 74 

Documentos
► ECONOMETRIC MODELS
An econometric model is one of a range of tools used to replicate and simulate the main mechanisms of a regional, national or international economic system. Econometric models are generally defined by the use that data play in informing the model structure, namely to calculate the model’s coefficients through a variety of possible estimation methods. In most models that use the label “econometric”, there is usually a mixture of those coefficients estimated freely by the data, and those which are fixed, assumed or restricted, due to some limitations on data quantity or quality. These restrictions or assumptions can often be made according to economic theory, or sometimes use results from other datasets where the economic mechanisms are expected to perform in similar ways.
Pedro Bravo Martínez  (más...)
► Eating Fossil Fuels
[Some months ago, concerned by a Paris statement made by Professor Kenneth Deffeyes of Princeton regarding his concern about the impact of Peak Oil and Gas on fertilizer production, I tasked FTW\'s Contributing Editor for Energy, Dale Allen Pfeiffer to start looking into what natural gas shortages would do to fertilizer production costs. His investigation led him to look at the totality of food production in the US. Because the US and Canada feed much of the world, the answers have global implications.
Jahaciel G Venegas   (más...)

 


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