Sept 18 (Reuters) - Cadence Bank (CADE.N) CEO Dan Rollins calls the regional banking crisis from earlier this year "March madness." Interviews with half a dozen regional bank executives and economists show the March banking crisis has had a lasting impact on the regional banking industry and the economy. Torsten Slok, chief economist at Apollo Global Management, said the banking crisis had "a magnifying effect" on the Fed's tightening but its full impact would come with a lag. The failure triggered a crisis of confidence, with depositors moving their money from regional banks to the perceived safety of the largest lenders. The KBW Regional Bank Index (.KRX) is down about 20% since early March despite a summer rebound.

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Persons: Dan Rollins, Rollins, Mark Zandi, ”, Zandi, Torsten Slok, Slok, Cadence's Rollins, Steve Wyett, Wyett, Banks, Cadence’s Rollins, Randy Chesler, Chesler, Moody's Zandi, Jeff Jackson, Raj Singh, Singh, Paritosh Bansal, Anna Driver Organizations: Cadence Bank, Moody’s, Apollo Global Management, Bank, Reuters Graphics, Valley, Regional, BOK, Federal, Loan, Thomson Locations: . Federal, Silicon, Tulsa , Oklahoma, Kalispell , Montana, Wheeling , West Virginia