IRR pitfall (scale) + incremental IRR:
Two *mutually exclusive* projects (cash flows in $):
Project S: C0 = −4,000; C1 = +2,600; C2 = +2,600
Project L: C0 = −8,000; C1 = +4,500; C2 = +4,500
Cost of capital = 10%.
Which choice maximizes value, and what is the IRR on the incremental cash flows (L − S)?