1. The problem asks which method, IRR or NPV, ignores the time value of money. 2. The time value of money means that a dollar today is worth more than a dollar in the future because of its potential earning capacity. 3. The Net Present Value (NPV) method explicitly accounts for the time value of money by discounting future cash flows to their present value using a discount rate. 4. The Internal Rate of Return (IRR) method also considers the time value of money because it finds the discount rate that makes the NPV of cash flows equal to zero. 5. Therefore, neither IRR nor NPV ignores the time value of money; both incorporate it in their calculations. Final answer: Both IRR and NPV consider the time value of money; neither ignores it.