Morgan Stanley managing director Patrick Haskell has been appointed a head of the institutional municipal business, the company announced this week. Haskell will oversee public finance and sales and trading in his new role.

In his four years at Morgan Stanley, Haskell has run various parts of the firm’s interest rate business, most recently as the head of liquid rates products in North America. In that position Haskell worked with U.S. government bonds, agency debentures, mortgage-backed securities and interest rates swaps.

“Under Patrick’s leadership, we are uniquely positioned to expand the footprint of our top-tier public finance and municipal securities sales and trading business,” Michael Heaney, global co-head of fixed income at Morgan Stanley, said in an e-mailed statement. Heaney said the group benefits from strong collaboration between the company’s wealth management division and insitutional securities franchise. Haskell will report to Heaney and co-head Robert Rooney.

Prior to joining Morgan Stanley in 2009, Haskell was chairman and chief executive officer of Ecosphere Technologies, a diversified water technology company that helped clean water in hydraulic fracturing zones.

Before Ecosophere, Haskell worked at Credit Suisse First Boston, where he began his career in municipal bond sales and served as the head of North American rates sales and trading.