%0 Journal Article %T Facing Challenges, Building the Field: Improving the Measurement of the Social Impact of Market %A Edward T. Jackson %A Karim Harji %J American Journal of Evaluation %@ 1557-0878 %D 2018 %R 10.1177/1098214018778817 %K evaluation %K impact measurement %K impact investing %K social value %K evaluation capacity building %U https://journals.sagepub.com/doi/full/10.1177/1098214018778817