The article discusses problems with the traditional rate of return measure IRR and introduces two new metrics, BAIRR and EAIRR, which provide a more reliable way to evaluate investment projects over time. These new metrics address issues like multiple IRRs and financial ambiguity, offering a clearer and more consistent approach that aligns with net present value calculations. By using these alternative rate of return measures, investors can better understand the profitability of their investments and make more informed decisions.