Millennium Challenge Corporation; United States of America

What’s the big deal about opening data?

On April 29th at the G8 International Conference on Open Data for Agriculture, the Millennium Challenge Corporation (MCC) unveiled a new evaluation data catalog to house all the data collected through our independent evaluations. Right now, the public can view metadata from agriculture programs in Armenia, Ghana, El Salvador, and the Philippines on the catalog at, including descriptive statistics for surveys of an estimated 5,000 households in Armenia, 9,300 households in Ghana, 1,700 individuals in El Salvador, and 2,400 households in the Philippines. 

The data catalog is designed to contain all of the information that documents and describes MCC-financed independent evaluations, including information on evaluation questions, the types of surveys conducted for the evaluation and the population of interest, questionnaires, sampling methods, and descriptive statistics for household- and individual-level data. The data catalog is fully searchable down to the variable level, allowing for comparison across datasets. In addition, as microdata for each survey is reviewed by MCC’s Disclosure Review Board and is approved for public release, the catalog will host public-use datasets and statistical analyses files for replicating the independent evaluator’s results or conducting separate analysis.

The launch of the catalog is just the beginning of a series of planned data releases. We aim to release as much of our independent evaluation data to the public as possible. We’ve developed an institutional process to enable us to do this over the coming months. It is a labor-intensive effort, but that’s a small price to pay for pushing the boundaries of transparency and accountability to get this huge stock of data into the public domain. And we are delighted to be ahead of the curve on President Obama’s just-released Executive Order on Open Data Policy.

While publishing the data is a big deal in and of itself, the really big deal will come in seeing how others use it. We know – and welcome – that it will be used as another accountability check on us and our partner governments. We hope it also will be used by other investors to learn from our experience on how to increase the impact of the dollars they invest. For example, the agricultural data we are releasing may help us better understand why some farmers adopt improved practices more quickly than others, which can lead to program improvements to maximize impact, increase incomes and expand productivity. 

Still, it is the unknown uses – the things we never imagined our data could be used for – that will likely prove to be the most exciting. Finance institutions, for example, looking to spur agricultural growth may gather information needed to develop innovative new products for smallholder farmers. Companies that want to evaluate the risks and benefits of operating in certain locations may find market information that is useful for evaluating risk and catalyzing new investments. Governments and civil society organizations can also analyze this data to drive forward their own complementary development and social programs.

MCC is opening our data because it is the right thing to do: American taxpayers deserve to see this part of their investment. But we are also opening our data because it is the smart thing to do. Information and data are tremendous strategic assets.  They can help us enhance policies and practices to more fully contribute to economic growth, strengthen democratic institutions, improve the impact of our work, and inspire entrepreneurship, innovation and scientific discovery in the field of development and beyond. Follow our efforts and give us your feedback!