In 2011 the FMA replaced the former Securities Commission, which copped a lot of flak for the collapse of the finance firms that took place under its watch.
"Looking back, New Zealand had a fragmented and patchy legislative framework which produced uneven regulatory results, driven in some cases by choice of corporate structure rather than required investor outcomes," Everett said. "Generally it created a fuzzy regulatory picture."
He said many of the provisions in the new regulatory regime - including the Financial Markets Conduct Act, which is currently being phased in - were designed to ensure the benefits of an improving economy were put to productive uses.
"Where people have confidence in the markets and trust in the conduct of finance industry professionals they are far more likely to participate and invest in productive assets."
Given their record profits, Everett said he was "pretty unsympathetic" about "whining" from international banks about new, post-Global Financial Crisis regulation.
"That said, I do talk to management of the local banks and fund managers here, and I listen to the amount of time they are currently spending on compliance and I understand the short-term pain they are going through," Everett said. "We will need to manage that down as the new legislation and requirements bed in."