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Category: Social Sciences

Does Adaptation to Climate Change Provide Food Security?

That’s the title of a new paper by Di Falco et al. in the American Journal of Agricultural Economics (a previous, ungated version can be found here, but note that the two versions differ substantially):

“We examine the driving forces behind farm households’ decisions to adapt to climate change, and the impact of adaptation on farm households’ food productivity. We estimate a simultaneous equations model with endogenous switching to account for the heterogeneity in the decision to adapt or not, and for unobservable characteristics of farmers and their farm. Access to credit, extension and information are found to be the main drivers behind adaptation. We find that adaptation increases food productivity, that the farm households that did not adapt would benefit the most from adaptation.”

This is a very interesting research question and that the core result is interesting (and no, I was not a referee for this paper, nor do I know the authors.) From skimming the paper, however, I’m not sure the relationship between adaptation to climate change and productivity is causal. Because the remainder of this post is pretty technical, I am putting it under the fold.

Methodological Convergence in the Social Sciences

In a post over at orgtheory.net, Fabio Rojas makes the case for more math in sociology:

“By ‘math’ I mean models and proofs, not statistics. That’s an important distinction. Statistics is using math to test hypotheses (verbal or otherwise) with quantitative data. Math is used to express statistical ideas and prove things about them. However, math can also be used to express sociological ideas and derive ideas through logical proof. By ‘math in sociology,’ I mean ‘writing down equations describing social processes (the models) and proving new things about the models.'”

Fabio then goes on to give six reasons why he thinks sociology needs more mathematical theoretical models.

I fully agree with his assessment and, for me, this is part of the methodological convergence that is currently taking place in the social sciences. Let me explain.