This report presents the outcome of the in-forum expert meeting on area (e) of the work programme on the impact of the implementation of response measures, “Economic modelling and socioeconomic trends”, which was held on 7 June 2013 in Bonn, Germany. The expert meeting provided an opportunity for Parties, relevant organizations and experts to exchange information, experiences, best practices and views in relation to the impact of the implementation of response measures. Such information, experiences and views will serve as input to the relevant discussions of and consideration by the subsidiary bodies, in particular when conducting the review of the work of the forum on the impact of the implementation of response measures at their thirty-ninth sessions, with a view to providing recommendations to the Conference of the Parties at its nineteenth session, as mandated by decision 8/CP.17