Possibly, the first thing we can take from economics is the importance of doing a cost-benefit analysis when making big decisions. Comfortable though we may be with making a list of pros and cons, we should recognise that it is actually a rather ineffective tool. Just one of the cons might easily outweigh all of the pros. A cost-benefit analysis is something altogether more sophisticated, which allows you to be more objective.
The text considers that making a list of pros and cons isn't very effective because.........