SWEEET

Posted by Valentin Bellassen (Inrae, valentin.bellassen@inrae.fr):

Post-doc position Inrae : Causal effect of land use and management on soil carbon stocks and other soil ecosystem services (3 years)

Deadline to apply: December 20, 2022.

For more information, follow this link

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Posted by Pham Thi Kim Cuong (Univ. Paris Nanterre, pham_tkc@parisnanterre.fr)

Ph.D. proposal "Non-monetary incentives and organic farming"

Deadline to apply: December 12, 2022.

The aim of the work will be to develop theoretical and empirical knowledge on how farmers could move towards more organic production. The main objective of the work will be to answer the following questions: How are farmers' environmental attitudes and preferences structured in their production activity? How can they be supported by non-monetary incentives in this transition?

The candidate will be integrated in a DIS-BIO research project of the INRAE METABIO Metaprogramme and led by the UMR BETA, and the thesis will be co-directed by Anne Stenger (BETA-INRAE-University of Strasbourg) and Kim Pham (Economix-University of Paris Nanterre).

For more information, follow this link

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Posted by Serge Garcia and Antonello Lobianco (Inrae, Beta) :

Proposal of scientific collaboration (contact : Antonello Lobianco, antonello.lobianco@inrae.fr)

FFSM (https://ffsm-project.org) is a bio-economic model that deals with forest biological dynamics, forest management and the markets of timber products.

We are currently exploring the possibility to improve, and generalise, the partial equilibrium model behind the market module.

Indeed one strong limitation is due to its rigidity. In the current form of the model, we have a set of "primary" and "transformed"

products, supply curves for the former, demand curves for the latter ones, and fixed transformation in between (and trade).

This leads to certain rigidities, like prices having no effect in substituting production factors, and being constrained

to use "half-duplex" trade functions.

We are looking instead for a partial equilibrium modelling approach that is independent of the "structure"

that we give to the model but is instead "data-driven": we first observe the market of interest,

and then it is this empirical step that indicates from which other products one particular product depends from,

or from which other products its demand competes with.

Ideally, we would then have a single set of "products" with the equation of their supply/demand depending on the prices

of all the other products, with a very sparse matrix where few elements would be nonzeros.

To be clear, we aren't looking at a computable general equilibrium problem. We want to remain

in the realm of a partial equilibrium approach, we don't think that the timber market is large enough

that macroeconomic feedback should be accounted for.

We are currently investigating the literature for how others have come across this problem of a "general" approach

to (computable) partial equilibrium models, that is in no way specific to timber markets,

and we would be delighted if you could point us to relevant sources or directly manifest your availability

in collaborating in light of the different projects that would benefit from this generalisation.