People are really ridiculously similar to dogs and other animals; the response to negative reinforcement or negative punishment is at worst uniformly negative, or at best inconsistent and unpredictable. Positive reinforcement results in a positive behavioral change without negative side-effects. Truly the best way to change behavior, yet people still believe that negativity is necessary, especially in the corporate and beaurocratic world. Mind-bogglingly uninformed, to put it lightly.
*edit: sorry for the comparison to dogs (I have some background in animal training); but I hope at least the connection of corporate policy to empirical behavioral science and psychology isn't the cause of the downvoting... anyway if you're interested, a great book is "Don't Shoot the Dog" by Karen Pryor. And on the business side, W. Edwards Deming's seminal work "Out of the Crisis." Essentially both show a proven way of dealing with any living thing that's based on positive behavior and proven statistical methods and science rather than outdated and misguided beliefs about punishment and motivation that are now known to be less effective in the long term. Simple psychology, statistics, and science.
Just to get pedantic, positive reinforcement means you are adding something to the environment with the goal of affecting behavior. Negative reinforcement means something has been removed from the environment to affect behavior. Not the same thing as reward and punishment. A negatively worded message is still technically positive reinforcement.
I'm not sure if you can consider a sign reinforcement though, because it is usually presented before the desired or undesired behavior occurs....
Yep, I'm fully aware of the behavioral theory behind it and the four quadrants. To the layman it's easier to talk about Reinforcement versus Punishment alone, since the two main branches share most of the common effects, and of which (at least in animal training) Positive Reinforcement with cues (clicker) appears to be the most effective. I realize I might have mixed them up above, sorry about that.
I actually think about positive wording versus negative wording to be a prime example of punishment versus reinforcement; with negative wording the interpretation (mine anyway, without much analysis) is a pre-emptive punishment directed directly at me for an undesired behavior that is an option, whereas a positively worded sign is pre-emptive positive reinforcement for good behavior that I might consider. I get rewarded/positively reinforced for good thought versus punished for bad thoughts, and it turns out the punishment (and side-effects thereof) applies whether or not I actually had the thoughts or not (citation needed, etc.). Really interesting to think about.
*edit: sorry for the comparison to dogs (I have some background in animal training); but I hope at least the connection of corporate policy to empirical behavioral science and psychology isn't the cause of the downvoting... anyway if you're interested, a great book is "Don't Shoot the Dog" by Karen Pryor. And on the business side, W. Edwards Deming's seminal work "Out of the Crisis." Essentially both show a proven way of dealing with any living thing that's based on positive behavior and proven statistical methods and science rather than outdated and misguided beliefs about punishment and motivation that are now known to be less effective in the long term. Simple psychology, statistics, and science.