"The greater risk environment for financials leads to husbanding of capital and risk-taking, less and more conservative investing and lending, and inevitably, lower growth," Blankfein, who also served as Goldman's chairman, told Reuters.

"While some banks have been hung up by poorly managed, concentrated risk, the overall banking system is extremely well capitalized and substantially more tightly regulated than in prior challenging times," he said.

Blankfein spoke after some of the world's largest central banks came together on Sunday to stop a banking crisis from spreading as Swiss authorities persuaded UBS Group AG on Sunday to buy rival Credit Suisse Group AG in a historic deal.

(Reporting by Lananh Nguyen)

By Lananh Nguyen