By signing an international river sharing agreement (RSA), countries voluntary commit to release water in exchange for a compensation. We examine the robustness of such commitments to reduced water flows. We focus on RSAs that satisfy core lower bounds and fairness upper bounds. We characterize...

By signing a fixed water sharing agreement (FWSA), countries voluntarily commit to release a fixed amount of river water in exchange for an agreed compensation. We examine the vulnerability of such commitments to reduced water ows. Among all FWSAs that are acceptable to riparian countries, we...