Ian Hannam, the chairman of capital markets at JP Morgan Cazenove, has resigned after the FSA proposed to fine him £450,000 for market abuse.
The Financial Services Authority is to explore changes to the client assets regime in the wake of the Lehman Brothers collapse.
The Chancellor has set out plans to clamp down on the use of tax loopholes and reliefs as part of a raft of measures targeting the wealthy.
Corporation tax is to be reduced from 26% to 24% from 1 April in an attempt to attract business investment.
The Financial Services Authority (FSA) has won a £32m judgment against the individuals behind three land banking operations, although it has warned investors are unlikely to recover most of the money.
The government has launched a scheme to help small businesses access cheaper finance through discounts on loans.
The Financial Services Compensation Scheme (FSCS) says it does not expect any major investment failures in the next financial year after setting another interim levy for financial advisers.