Industry environment : then and now
Assume that Donna buys only xavier steak ("x") or yams ("y". Donna's indifference curves, if mapped into a geometric plane, would have a slope of -2 when she has more y's than x's, but would fall at a rate of -1/2 when the opposite is true (more x's than y's). If Donna has 24 x's and 36 y's and you offered her 34 x's, how many