Category: Uncategorized

Review of Timothy Ogden’s “Experimental Conversations” Forthcoming

A few months ago Timothy Ogden sent me a copy of his new book, Experimental Conversations, for review.

I am happy to note that a review of it, which I wrote with University of Minnesota Applied Economics PhD student Jeff Bloem (if you are interested in development but don’t already read Jeff’s blog, you really should) is now forthcoming in the American Journal of Agricultural Economics.

You can read an ungated version of it here.

‘Metrics Monday: One IV for Two Endogenous Variable, and Testing for Mechanisms

A few months ago, a post in this series discussed a recently published article in the American Political Science Review by Acharya et al. (2016, ungated version here) in which the authors developed a method to test whether a mediator variable is a mechanism whereby treatment variable causes outcome variable .

At the time, I suggested to one of my PhD students that she should use that method to test for a presumed mechanism in her job-market paper, but since her identification strategy was based on an IV, it really wasn’t clear that Acharya et al.’s method could be applied to her research question.

A few weeks ago, a new working paper by Dippel et al. (2017) was released titled “Instrumental Variables and Causal Mechanisms: Unpacking the Effect of Trade on Workers and Voters.” Although Dippel et al.’s application is really timely–Do trade shocks cause people to vote for populist parties by turning them into disgruntled workers?–I’ll focus in this post on their methodological innovation. Continue reading

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Agriculture in Africa–Telling Myths from Facts

Food Policy, the journal I have the privilege and the pleasure of co-editing with my Bologna colleague Mario Mazzocchi, has a new special issue which should be of interest to readers of this blog.

The topic is “Agriculture in Africa–Telling Myths from Facts,” the special issue was guest edited by the World Bank’s Luc Christiaensen, and there is a lot of good stuff in there if you are working on agricultural development. And the best part is that it is all open access thanks to the Bill & Melinda Gates Foundation.

Here is the table of contents: Continue reading