Definition. IFRS: An associate is an entity over which the investor has significant influence – that is, the power to participate in, but not control, an associate’s financial and operating policies.efinition. IFRS: A joint venture is defined as a contractual agreement whereby two or more parties undertake an economic activity that is subject to joint control. Joint control is the contractually agreed sharing of control of an economic activity. Unanimous consent of the parties sharing control is required.