Just how diverse is the senior leadership of international aid organizations? Colleague Astrid Haas and I recently launched a research project to attempt to answer exactly this for a key dimension of diversity: gender. Data and R code used in the analysis are provided at the bottom of the post Although I label myself 'an economist' at cocktail parties (or would, if I were invited to any), much of my career has been spent in the 'international development'. For those unfamiliar with what this means, in essence much of my work focuses on the challenges faced by nations, communities and…