Say there are 3 companies A, B and C. Each company has a quality rating from 0 to 100 and a price in USD.

Company    Quality    Price
A          80         7.9
B          70         8.0
C          75         8.1


How do I determine the best quality-price trade-off? What kind of analysis should I use?

• You may want to look at en.wikipedia.org/wiki/Pareto_efficiency#Pareto_frontier – GaBorgulya Apr 3 '11 at 23:30
• Assuming higher quality and lower price are better, you can in this particular case reject B and C since they both have a lower quality and a higher price than A. There are other combinations of values where you need a more sophisticated approach, – Henry Apr 4 '11 at 0:33