I. Kourounioti, I. Tsouros, P. Georgakis , A. Salas , M. de Bok, I. Pagoni, A. Tsirimpa, S. Thoen, L. Eggers, A. Polydoropoulou, L. Tavasszy Matching supply and demand in crowdshipping: 1 A theoretical framework 2 3 Ioanna Kourounioti 1 *, 4 Email: I.Kourounioti-1@tudelft.nl 5 6 Ioannis Tsouros 2 7 Panos Georgakis 3 8 Angelica Salas 3 9 Michiel de Bok 1,4 10 Athina Tsirimpa 2 11 Ioanna Pagoni 2 12 Sebastiaan Thoen 4 13 Larisa Eggers 4 14 Amalia Polydoropoulou 2 15 Lóránt Tavasszy 1 16 17 18 1 Faculty of Civil Engineering and Geosciences 19 Delft University of Technology 20 Jaffalaan 5, 2628 BX Delft, Nederland 21 22 2 University of the Aegean 23 Department of Shipping Trade and Transport 24 Korai 2A, 2100 Chios, Greece 25 26 3 University of Wolverhampton 27 Wulfruna Street,Wolverhampton, WV1 1LY, UK 28 29 4 Significance 30 Grote Marktstraat 47 15 31 2511 BH Den Haag, The Netherlands 32 *corresponding author 33 34 35 36 37 38 39 40 Word count: 5111 words + 5 Figures + 1 Table = 5111 + 1250+ 250= 6611 words 41 42 43 44 Submitted for presentation at the 100 th Annual Meeting of the Transportation Research Board 45 January 2021 and for publication in Transportation Research Record 46 Under the TRBβs Standing Committee on Urban Freight Transportation (AT025) Call for 47 Papers 48 49 50 51 52 53 August 1 st , 2020 54