The basis for the differentiating between investment agency and agency in general is that the former is in order to increase wealth, and it is similar to Mudarabah and Musharakah in this respect. However, the difference between investment agency and Mudarabah and Musharakah is that Investment Agency is a form of Ijarah (hiring), while Mudarabah and Musharakah are forms of partnership. As for the general agency, it is an authorization to perform specific tasks such as payment etc. Even if the authorization is to engage in a sale/purchase, such as the authorization of the client in a Murabahah contract, its main purpose is to acquire ownership for the institution rather than investment on its behalf.

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