Follows criticism of structured products
The IMA has issued a series of alternatives to the FSA's "perverse" proposed changes to the Financial Services Compensation Scheme (FSCS), having previously criticised its unfair treatment of asset managers.
Assets under management within fund of funds have reached a record level of £46.5bn, according to the IMA.
Retail investors exited UK equities in favour of global and regional funds in January.
The IMA is calling for the introduction of a new type of fund structure it says will send out a "strong signal" the UK is serious about providing cross-border funds, ahead of the introduction of the new UCITs IV Directive.
Net retail sales reached their highest level on record in 2009, up 45% on their previous best performance, according to the IMA.