The Worldwide Network of Virtual Water with Kriskogram Rodolfo Metulini 1 1 Scuola Superiore S.Anna Pisa - Institute of Economics Abstract In this document some Kriskograms are used as a tool to visually analyze the evolution over time of the worldwide Virtual Water network (yearly flows). Plots are reported for the years 1990, 1995, 2000, 2005 and 2010. Virtual Water; Network; Kriskograms Acknowledgment I would like to thanks Irina Mirkina (Lund University) to kindly shared with me her codes. Virtual Water data are prepared by Stefania Tamea and Francesco Laio (Politec- nico Torino) for the project “The global virtual-water network: social, economic, and environmental implications” (FIRB - RBFR12BA3Y) References • Bergh, A., Mirkina, I., & Nilsson, T. (2015). Pushed by Poverty or by Institutions? Determinants of Global Migration Flows (No. 1077). • Sander, N., Abel, G. J., Bauer, R., & Schmidt, J. (2014). Visualising migration flow data with circular plots (No. 2/2014). Vienna Institute of Demography Working Papers. • Gu, Z., Gu, L., Eils, R., Schlesner, M., Brors, B. (2014). circlize implements and enhances circular visualization in R. Bioinformatics, btu393. 1