We quantify the sensitivity of the Eisenberg-Noe clearing vector to estimation errors in the bilateral liabilities of a financial system. The interbank liabilities matrix is a crucial input to the computation of the clearing vector. However, in practice central bankers and regulators must often...

A market model with d assets in discrete time is considered where trades are subject to proportional transaction costs given via bid-ask spreads, while the existence of a numeraire is not assumed. It is shown that robust no arbitrage holds if, and only if, there exists a Pareto solution for some...