Using a decade of administrative data from the Government of Canada, we provide fresh analysis of the composition and distribution of staff most formally associated with policy work, the Economics and Social Science (EC) classification. Comparative analysis across unit levels including "ministerial departments" and central agencies, as well as non-standard organizations support but clarify the nature of the uneven distribution of policy analytical capacity across government.We demonstrate a dramatic increase in not only the overall complement of EC staff over time, particularly since 2017, but also significant growth at senior levels while junior EC staff have remained stable or declined. The findings also point to new dynamics related to the pace, orientation, and distribution of policy analytical capacity as governments gain, lose, and exercise that capacity often in the face of tough choices about how, where, and when to deploy policy resources. Sommaire À partir d'une décennie de données administratives du gouvernement du Canada, nous formulons une nouvelle analyse de la composition et de la répartition du personnel le plus formellement associé au travail d'élaboration des politiques, la classification Économique et services de sciences sociales (EC). L'analyse comparative entre les différents niveaux d'unités, y compris les « ministères » et