Search results for "jel:C67"
showing 2 items of 12 documents
Identifying a supply-chain related to the use of renewable natural resource: Case studies from France and Aquitaine region
2015
This paper aims to build a method to identify an economic sector. This type of method attempts to identify a pool of sub sector showing a strong intensity of economic flows between them. In this study, we show the potential of input output models for this type of analysis. Two types of contributions have been done here. First we improve the sub sector selection. Then we improve the calculation of the « economic distance between sub sectors belonging to the same sector. These improvements are applied to identified the wood sector in France but also at the regional level of Aquitaine. The empirical results show the features of sectors can vary between France and regions, mainly because of reg…
About the reinterpretation of the Ghosh model as a price model
2001
The Ghosh model assumes that, in an input-output framework, each commodity is sold to each sector in fixed proportions. This model is strongly criticized because it seems implausible in the traditional input-output field. To answer to these critics, Dietzenbacher stresses that it can be reinterpreted as a price model: the Leontief price model is equivalent to the Ghosh model when this one is interpreted as a price model. This paper shows that the interpretation of the Ghosh model as a price model cannot be accepted because Dietzenbacher makes a strong assumption, dichotomy, while the Ghosh model does not determine prices...