1. International Accounting Standards Board (IASB). (2011). International Accounting Standard 28: Investments in Associates and Joint Ventures.
Paragraph 3: Defines an 'associate' as "an entity over which the investor has significant influence" and 'significant influence' as "the power to participate in the financial and operating policy decisions of the investee but is not control or joint control of those policies."
Paragraph 5: Establishes the presumption of significant influence: "If an entity holds
directly or indirectly... 20 per cent or more of the voting power of the investee
it is presumed that the entity has significant influence
unless it can be clearly demonstrated that this is not the case."
2. International Accounting Standards Board (IASB). (2011). International Financial Reporting Standard 11: Joint Arrangements.
Appendix A: Defines 'joint control' as "The contractually agreed sharing of control of an arrangement
which exists only when decisions about the relevant activities require the unanimous consent of the parties sharing control." This supports why options B and C are incorrect as no contractual agreement is mentioned.
3. PwC. (2023). IFRS Manual of Accounting - Chapter 23: Investments in associates and joint ventures (IAS 28).
Section 23.7: "An investment of 20% or more of the voting power (that is
the right to vote) leads to a presumption of significant influence. The presumption can be rebutted if there is clear evidence to the contrary." This source corroborates the application of the 20% threshold from IAS 28.