Finally, it's bittersweet that this paper was funded by USAID, which is now gone. Thy supported research on Africa, in collaboration with African scholars and allowed for human capital accumulation of the next generation of economists.

The paper is open access thanks to UC-Berkeley Library's commitment to open access science. They negotiated rates with Elsevier and paid for the publishing fee.

The paper uses old satellite data to do ex-post impact evaluation of a major irrigation investment which makes the region much more resilient to climate change. It's exciting when new methods and data allow us to look at the past.

It is my first paper in Africa and I got to work with co-authors from Senegal: Aboulaye Cisse, Mame Mor Anta Syll and Samba Mbaye.

It would be nice to know which items are not being found. Retailers could stop carrying some products due to tariffs. If those missing quotes are then imputed, you get an overall lower inflation picture. Economists often think of no availability as akin to a good being priced at the choke price.