Sure, if you want a short term agreement that can backfire on you at some later date.
People do things because they WANT to.
Not because they need to. Sure, you can force people to want a lot of things, short term. You can put a gun to their heads and most people will want to give you their money. Well, the simples way is to use some of the subconscious influence rules that Dr. Cialdini of the Arizona State University have been researching for over 20 years. The beauty of these are that they are automatic.