Gauss code for Gilbert, C.L., L. Christiaensen and J. Kaminiski (2017). "Food price seasonality in Africa: Measurement and extent". Food Policy, 67, 119-132.
Price data for Gilbert, C.L. (2016). “The dynamics of the world cocoa price”. Chapter 16 of M.P. Squicciarini and J. Swinnen (eds.), The Economics of Chocolate. Oxford: Oxford University Press.