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.

The energy brought to Google by Porat, who joined in May from investment bank Morgan Stanley (MS.N), is likely to drive the stock in the short and medium term, analysts say.

Answer: product_or_material_produced