Dear Colleagues, This is a gentile reminder that AQR-IREA organizes the 2017 Barcelona Workshop on Regional and Urban Economics in Barcelona on November 23th-24th 2017.The call for paper is still open until September 15th 2017.The workshop will be focused on causal inference in spatial economics. Its aim is to bring together researchers in regional and urban economics who are working in the development of methods that allow estimating causal effects of phenomena in which the spatial component plays a prominent role, as well as empirical exercises in which spatial causal inference is provided. Papers in all areas are welcome, as long as they include a spatial perspective and deal with the issue of causality. Although the Workshop will focus on empirical papers, theoretical studies are also welcome.Keynote speaker:  Peter Egger (KOF Swiss Economic Institute, ETH Zürich)Audience: We will accommodate around 6-8 papers, to be presented in plenary sessions that will complement the keynote speaker’ presentation. Important dates:  Deadline for papers submission: September 15th 2017 (Papers should be sent in pdf format to aqr_workshop@ub.edu. Extended abstracts or incomplete drafts will also be considered, but full papers will be favoured)   Notification of acceptance: September 22nd 2017   Preliminary programme: October 6th 2017   Final programme: October 30th 2017 For further information, please visit the workshop website www.ub.edu/aqr/workshop/2017, or contact to aqr_workshop@ub.edu. Please, feel free to distribute this announcement. Excuse us for “cross-posting”. We look forward for your participation at the Workshop! AQR-IREA Research Group University of Barcelona http://www.ub.edu/aqr/