Utilize the input text as a context reference, choose the right relationship between Morgan Stanley and investment bank from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Australia's housing boom has peaked, with the challenge now to pull off a `soft landing', investment bank Morgan Stanley says as it predicts further interest rates cuts and a mini-budget stimulus.

Answer: product_or_material_produced