Wednesday, June 3, 2009

Cost Incentivisation

Some people are skeptical that minor price adjustments can change consumer behaviour. A lot has been said against charging people for plastic bags at grocery stores, and I admit that I had my doubts as well. Yesterday, the power of pricing was demonstrated right before my eyes. The person after me in line was asked if they wanted a bag. When they were told there was a cost associated with it, they declined. A five cent charge can alter consumer behaviour! Victory for the hand of regulation. Now if only we can shift this sort of disincentive to carbon, we will be almost home free.

2 comments:

Anonymous said...

There's a vary strange discontinuity at the zero price point, so I'm not sure this is the exact example that you want to use wrt marginal price changes. I'm thinking of research like this. It doesn't exactly map well to this exact situation, but at least it shows that consumer decisions are warped near 0.
MikeG

Anon said...

Well you are right that this is perhaps not a perfect map to the situation.

My thinking is along these lines: Since you always get the bag with a larger purchase, the marginal cost of 5 extra cents is not great when compared with the total cost of the purchase. It's not as if people were going to the grocery store to only get a bag.

In the end, it might be more the simple fact that the customer is asked if they want a bag or not. Before people wern't even given the choice, and why put in the extra effort to say no?