If cost varied directly with interest rates, would tuition at schools vary when interest rates moved. No. Because schools Are stuck on a price. Theoretically tuition can come down and I believe if will , just in some sort of irrational seemingly random way. I think housing prices will heave up and down jn nondirect ways. Because people are nuts and optimistic, stubborn and stupid, rational but not. This is not a math thing. Kind of like if you Had listened to x girlfriend 25 perc more you would not necessarily receive 50 perc more oral sex. It could come jn waves it might never come. Whoknows?