




Simpson, R. David. 
There has been considerable recent interest in the valuation of ecosystem services. We focus here on the value of such services in the production of market goods. Although the conceptual basis for conducting such exercises is straightforward, the data with which to implement them empirically is generally not available. An upper bound on the value of ecosystem services arises when the production technology exhibits constant returns to scale in ecosystem services and market inputs jointly. There are compelling reasons to suppose that the existence of fixed factors of production would imply that production technologies exhibit decreasing return to scale. Under these circumstances, no general conclusions can be drawn. We show in an illustrative example that a... 
Tipo: Working or Discussion Paper 
Palavraschave: Ecosystem services; Returns to scale; Elasticity of substitution; Resource /Energy Economics and Policy; Q29. 
Ano: 2001 
URL: http://purl.umn.edu/10832 
 


Figueiredo, Adelson Martins; Santos, Maurinho Luiz dos; Lirio, Viviani Silva. 
The objective of this work was to estimate and to analyze the elasticity of substitution between Brazil, the USA and Argentina in the soybeans exports in the selected importers markets. This fact is important, considering that, it increases the integration of the world economies, placing in prominence of the adaptability to the world demand, as a fundamental factor for the exports expansion. Like this, given the economical relevance of the Brazilian exports of soybeans it was looked for, specifically, to verify the substitution possibility between the soybeans exports of Brazil, the USA and Argentina. After accomplishment of DickeyFuller expanded tests (ADF) for unit root, and Trace test and Maxeingevalue test for cointegration, the Error Correction... 
Tipo: Journal Article 
Palavraschave: Elasticity of substitution; Exports; Soybeans; Brazil; International Relations/Trade. 
Ano: 2004 
URL: http://purl.umn.edu/56769 
 

 


Alarcón, Silverio. 
Firm panel data sets over the period 1993 to 2002 are used to estimate translog production functions with labour, capital and material inputs for 9 Spanish food industries. To tackle the endogeneity of the regressors, the generalized method of moments estimations is employed. The specification tests reject the instrument variables only for 1 out of 9 estimates. The remaining 8 industries show evidence of homogeneity and constant returns to scale. Only one industry exhibits complete separability of all pairs of factors and thus translog is preferred to CobbDouglas specification for 7 industries. Substitutability and complementarity between production factors in response to price changes are studied through Morishima and Shadow elasticities.... 
Tipo: Conference Paper or Presentation 
Palavraschave: Translog; Elasticity of substitution; Generalized method of moments; Returns to scale; Agribusiness; C23; D24; L66. 
Ano: 2005 
URL: http://purl.umn.edu/24487 
 

 


