President of the Federal Reserve Bank of New York and Vice Chairman of the Federal Open Market Committee William C. Dudley has argued that a global financial system regulated on a largely national basis is untenable for supporting a world economy with global financial firms. In 2011, he advocated five pathways to improving the safety and security of the global financial system: a special capital requirement for financial institutions deemed systemically important; a level playing field which discourages exploitation of disparate regulatory environments and beggar thy neighbour policies that serve "national constituencies at the expense of global financial stability"; superior cooperation among regional and national regulatory regimes with broader protocols for sharing information such as records for the trade of over-the-counter financial derivatives; improved delineation of "the responsibilities of the home versus the host country" when banks encounter trouble; and well-defined procedures for managing emergency liquidity solutions across borders including which parties are responsible for the risk, terms, and funding of such measures.