
The sunk cost fallacy, also known as the Concorde Fallacy, which derives its name from the Concorde Project, posits that we make irrational decisions based on our being influenced by what we have already invested – time, money, etc. – rather than using future costs and benefits to guide our decision-making. As with countless others, I too have been a victim of this unfortunate phenomenon. As a countermeasure, one of the habits I adopted over the years was to utilize what is referred to as your “no” muscle. This simple activity requires that you practice using the word “no” when asking yourself a question, specifically as it pertains to an investment of sorts. Among the most common examples where this exercise proves beneficial is when grocery shopping and considering whether to eat out. In these examples, the sunk costs pertain more to time invested than money invested, but in invoking your “no” muscle, you will save on both in the long run.
For more information on the Concorde Project, see the link below.
