E-cigarette users considering quitting E-cig use may wind up taking several tries before successfully stopping: Now, assuming the typical graph for the MB and MC curve, what would happen if (which...

E-cigarette users considering quitting E-cig use may wind up taking several tries before successfully stopping: Now, assuming the typical graph for the MB and MC curve, what would happen if (which curve is shifting and as a result what happens to the optimal quantity of smoking?) 1) a new, highly effective smoking cessation aid became available? Describe what would happen in the graph 2) you get the exciting news that you will become a parent